Cooler Master SFX Power Supply Fan Behavior Update

Just wanted to share an update on the Cooler Master SFX Gold PSUs. I've been corresponding with Cooler Master's power division on some intermittent fan/fanless mode behavior I observed while testing the V850 SFX, and just wanted to share an analysis as well as what Cooler Master is doing about it.
I'm leaving the CM support site linked down below for your convenience if you would like to reach out: account.cooler...
Test system build components- as an Amazon Associate I earn from qualifying purchases:
Case: Cooler Master NR200P: amzn.to/32POSwX
Motherboard: Gigabyte B550I Aorus
CPU - AMD Ryzen 5 5600X: amzn.to/2Hb6Pyl
CPU Cooler - ID Cooling SE-224-XT White/Black/RGB: amzn.to/2KI0Br2
GPU - Nvidia RTX 3070 Founders Edition
RAM - Corsair Vengeance RGB 3200mhz: amzn.to/2UgeBtD
RGB Fans - Cooler Master Masterfan Halo 120, 3-pack: amzn.to/2UPXmQe
Power Supply - Cooler Master V850 SFX Gold: amzn.to/339UTod
Storage - Samsung 970 EVO M.2 NVME: amzn.to/2USGd8z

[@XR13]

Thanks for drawing attention to this! I've been experiencing this pulsing / spiking issue and I'm glad I'm not going crazy.

[@AntonChigurh-]

I got the 850 watt version of this PSU and I’m glad to hear that they’ll replace it with a revised version without any hassle. Thanks for the update.

[@thomasboyer8195]

Someone on reddit contacted Cooler Master for RMA on r/sffpc and they told them they would not replace it.

[@djglobol]

Hello, We are working on the registration on the serial number. Please note that the Semi-Fanless function is standard on these power supply. Your replacement will have the same feature. Please replacing the power supply will not change the fans speed setting. Currently all of these model have this feature. If you are looking for a model without the semi-fanless it is currently not available without this feature at this time. Thank You CM-USA Support

[@mystelumiere9086]

Good luck with the replacement. I had the 750W version with the same annoying ramping up and down. Contacted their CS and was told this is "normal" and their competitors are similar. Changed to Corsair SF750 and never looking back

[@Clarity520]

@@mystelumiere9086 How's the noise level of the SF750?

[@mystelumiere9086]

@@Clarity520 if you have a quiet PC in a quiet room, it can get pretty “loud”. (using Noctuas etc.) However, I dare say it is more of annoyance rather than loud I have 2x Lian Li SL120 and 2x Noctua A12x15s in my custom loop. At light loads/idle, this ramp up when crossing the 15% threshold is easily the loudest in the entire system

[@chiptoothtech4937]

CANT WAIT TO SEE THE FOLLOW UP VIDEO ONCE YOU GET A REVISED PSU !

[@gdeeable]

Thanks for this video! Waiting for my unit, which only cost me $148 USC. I was concerned I might be getting a problem version. Watching your video helps ease my concerns. First time commenting. Keep up the quality work.

[@DarrinLin]

I always have huge respect for CM. They are active in the community and take feedback to heart. They are clearly passionate about the products they make.

[@birilio9620]

Hi, I ordered this PSU (850v sfx) yesterday in France (retailer name: LDLC). Your video is very interesting. I checked on the product description and I was happy to see: - "With the V850 SFX, above 15% load, the power supply unit is perfectly silent. A button allows you to change this behavior to a normal mode that will increase the heat dissipation." - In french: La V850 SFX propose par une conception semi-fanless avec un ventilateur de 92 mm. En dessus de 15% de charge, le bloc d'alimentation est parfaitement silencieux. Un bouton vous permet de modifier ce comportement pour passer à un mode normal qui augmentera la dissipation thermique. The new unit should have a button. I should receive my unit the next week: 14-15th of january. I'll tell you if it has a button to switch between each mode. Love your videos, Birilio

[@MachinesMore]

Birilio, merci beaucoup pour votre aide. J'espère que vous apprécierez le bloc d'alimentation.

[@birilio9620]

​@@MachinesMore Hi. I have the PSU now. It doesn't have a button but I wasn't able to reproduce the problem: 6600k and gtx 1060: KZbin for 3 hours no fan and then OCCT: slowly increasing fan speed of the PSU (at 350w). I think I have the new revision but impossible to confirm: nothing on the box to indicate rev2.0 or else.

[@Clarity520]

@@birilio9620 good for you. I just got my unit from Memory Express here in Canada a few days and there’s no switch button :(

[@JohnNguyenVincent]

I just got this in my nr200p. It keeps pulsing on and off and quite audible just using a web browser.

[@MrMooMoo89]

This confirms the amazon reviews

[@Vexcenot]

Ye this is such a great power supply

[@chairs-dimension]

SFF PSUs might get more love in the coming years, Lian-Li's O11D mini uses a SFF PSU rather than an ATX one and it does wonders for the overall size and layout of the case. I wonder if it'll become a more common trend to downsize the PSU rather than have that very bulky PSU compartment as is seen in so many cases.

[@salomoncorreafranco351]

Love your videos, great info for my first build with the NR200.

[@lennart2644]

I ordered this one and noticed the bad reviews, so I looked for more in-depth reviews on KZbin and sure enough, like with my entire NR200 build "journey", I found the exact answer I was looking for here. I've been running this PSU for a few days now and it sounds absolutely fine to me. It's a good performer. Just make sure you have the revised model and you have yourself a good unit.

[@sasukeuchiha6485]

Hey , Is PSU is still good?

[@lennart2644]

@@sasukeuchiha6485 Hey, the PSU has performed absolutely problem-free every day since I bought it :) Recommended! It's very quiet as well.

[@wespijffers8808]

Glad to see I'm not the only one with this issue. I've reached out yesterday to Cooler Master to see what they are going to do about my unit. I was thinking of switching to a Corsair SF750 (if and when it becomes available) but I like the additional 100 W as I have the V850.

[@simonfresh8079]

Any Updates from CM there?

[@wespijffers8808]

@@simonfresh8079 I got the following answer from CM EU: "There are no revised versions available yet and I don’t know when we will receive them. Our PSU team has not updated us about this yet. At this moment I would recommend to contact the seller for a full refund."

[@chiptoothtech4937]

GREAT FIND!!!!!!!!! IN THE FUTURE WOULD LOVE TO SEE A MACHINES AND MORE PSU IN THE FUTURE ^_^!!

[@houseXelectroXco]

Great and informative video, thanks a lot for the effort! A question from my side: (A) I bought my 750W version from a retailer, does Cooler Master replace it with a revised version if I contact them or do I need to run the pieces over the retailer? (B) are there ways to fix this issues DYI style? Looks to me like something that should easily be fixable 🤔. Would appreciate your view on that 🙏

[@houseXelectroXco]

Update: Called Cooler Master customer support, their statement: "We currently do not have any updated versions of those PSUs and we have not been told anything by our PSU division about when we can expect any. Sooo I would recommend to just try and get a refund"

[@kennethverana5885]

@@houseXelectroXco refund for whst

[@yaboipug530]

are the revisioned ones out now? or is it still in process to this date?

[@CowCatwithafancyHat]

Such an informative tech channel! Thank you!

[@MachinesMore]

You got it!

[@Unhomiee]

Glad I went with Corsair's SF600.

[@CknSalad]

The platinum version? I have the gold version and the cables are so damn stiff. Other than that it's a quality psu.

[@djglobol]

Hello, We are working on the registration on the serial number. Please note that the Semi-Fanless function is standard on these power supply. Your replacement will have the same feature. Please replacing the power supply will not change the fans speed setting. Currently all of these model have this feature. If you are looking for a model without the semi-fanless it is currently not available without this feature at this time. Thank You CM-USA Support

[@djglobol]

Their website states 15% Semi-fanless mode. So does that mean there’s a button to switch modes? What does everyone think?

[@garbuckle3000]

I recently got a white V650 V2 ATX, and regardless of whether I have the "eco" button on or off, I will get fan spikes while playing games. It tends to be when my GPU goes over 100W. I can reliably reproduce this by moving my mouse around quickly in the game. At first I thought it was my GPU or maybe AIO, but nope, it's the PSU. :(

[@AndreiE190]

Mine behaves the same way - occasional spikes of very high RPMs of the PSU fan. Haha, I’m glad you brought this up as I could not figure out what fan(s) is causing this loud noise in my system 😅. Sure enough it was a PSU.

[@j0c1988]

Can't wait until mine does it.

[@djglobol]

I had a chance to get a sf750 but I passed on it for a v850 sfx. Now I’m trying to rma my psu. This is what they said. Hello, We are working on the registration on the serial number. Please note that the Semi-Fanless function is standard on these power supply. Your replacement will have the same feature. Please replacing the power supply will not change the fans speed setting. Currently all of these model have this feature. If you are looking for a model without the semi-fanless it is currently not available without this feature at this time. Thank You CM-USA Support

[@MachinesMore]

I’ll bring this to the attention of Cooler Master. Thanks for advising.

[@aureliengodard6787]

Just received a v750 today. I have the issue and it's horrible in time. I sent a RMA request to CM today. If I have no feedbacks I will return back the product to the vendor. I will keep you informed.

[@noinimod]

Coolermaster should be transparent about how consumers can identify the latest revision, whether it's through the box design or serial number . If we buy a unit in a retail store at least we have the ability to tell, and that would be very helpful. Better to get it right at the time of purchase, than to hope for the best, get a rude shock, and go through the hassle of emailing CM support and yadayada Judging by the number of negative comments on the way this PSU fan behaves, i think most people are NOT okay with it

[@MachinesMore]

I agree- they are saying the revised version boxes won’t say fanless on them, but it would be nice to have an official communication from them, especially considering most people buy via online channels and sight unseen.

[@noinimod]

@@MachinesMore Thanks for the info. What will the revised version boxes say, if it doesn't say "fanless" on it? There are still plenty of people buying these parts in retail stores so it's important information

[@MachinesMore]

The bottom right of the pre-revision retail box has a 15% fanless in a small graphic, based on what I was told that icon will just be removed for the revised models.

[@napalmarsch]

Thanks for this Video i hope i get soon a Cooler Master V850 SFX my nr200p finaly arrived but im still missing parts =/ like the psu

[@MachinesMore]

Sure. If you're in the US, official stock has been showing up on Amazon over the last day or so, hopefully it's a sign that perhaps the revised units are hitting shelves finally. Hope you can get one of the new ones if you want.

[@Cyberjin]

thanks for update!

[@Picklerickmarshall]

I’m dealing with exactly this. I emailed CM almost 2 weeks ago with no response. Is it taking this long for anyone else?

[@robandgen5778]

Hi, doing a custom loop and need to provide signal to PSU to power on. I need to disconnect at power supply as my loop precludes access to MOBO pin. How do get pin out for PSU side of V 1000 SFC Platinum? Thx :)

[@andrewsmith7367]

Im curious if you paper clip test it does it stay running or switch off.

[@sweetdavvy6894]

Will be a guide for unplugging or switching off this system? Would be useful

[@coleworld8265]

Could you go over what kind of changes nd configuration shifts can be made to NR200p builds if you use a front mounted PSU position? I haven't seen anyone else do it and I am curious.

[@mytenore]

Thanks for the review. I have a sandwich case and my GPU (3080) constantly pushing hot air to the PSU at least some of it. I had no problem at all with Corsair sf600. My PC is almost whisper silent with Corsair although the same hot air gets to the PSU. After buying Cooler Master v850 I hear 1) much more noise than Corsair even at a nornal usage 2) after starting a game - it gets really loud. I don't hear that much spikes just the level of noise is much higher. While gaming I hear only Cooler Master PSU running - and 0 noise from GPU fans and radiator fans... Could that be because Cooler Master PSU gets hot quicker or that is some kind of protection? Though if they make ITX PSU they should be aware that most of the ITX cases are sandwich type. And I didn't get it - with the new batch will it be less noisy? Or it's just the spikes that they are going to solve? Why not to make just a normal curve with a few degrees like Corsair.

[@AlexSeadanya]

how brave u are using sf600 for rtx3080...even me, let my 3070ti on silent bios switch on r3600-sf600platinum....haaaa

[@mytenore]

@@AlexSeadanya that was with 8700k and no overclocking. Later on of course I switched to sfx 750.)

[@AlexSeadanya]

@@mytenore do u have any issue while using sf600 on 8700k-rtx3080? how long did used that? which rating, gold or platinum?

[@mytenore]

@@AlexSeadanya platinum. Everything was fine! I checked how much exactly my system was eating watts and it was no more then 450-500 at maximum! As long as everything is not overclocked, plus 3080 undervolted - it worked just fine!

[@AlexSeadanya]

@@mytenore how do u get the real consumtion number?

[@OMaMYdG]

Thanks for the update. I cancelled my order and got the Corsair SF750 instead.

[@sretkosretni]

Are you by any chance from europe? And if you are, please tell me where you got it from, cuz they are out of stock everywhere.

[@OMaMYdG]

@@sretkosretni no I'm from The United States. Newegg had a few left a few weeks ago when I ordered it.

[@sretkosretni]

@@OMaMYdG damn, thanks for the reply tho!

[@OMaMYdG]

@@sretkosretni no problem keep looking . I hope you find one!

[@aawillma]

I hope they can work this out. Corsair needs some competition in the sfx psu space. I stuck a RM750x in my nr200p and since the atx psu layout has the intake facing the inside of the chassis, I assumed it would run a little warmer but nope, the fan is basically never even on. When it does it's so gentle I can't tell unless I'm staring at it. I have a lot of quirks with this config but psu behavior has never been one of them.

[@davetechme]

How are your thermals? Debating trying to ziptie an ATX PSU or just going SFX.

[@aawillma]

@@davetechme Thermals are completely independent of the psu. I have a top down air cooler with the tempered glass panel. Since I only game and it's at 1440p, my CPU stays in lock step with what the GPU temp is, to the degree. 70C under load. It was much worse at 1080p, 85C sustained. That's what it climbs to on the rare occasion I max my CPU usage too. I can swap to the mesh side panel for those once in a blue moon situations though.

[@quickflik3980]

Do u have any recommendations for rtx2080 aorus and i 7 9700k is the sfx coolermaster 750 good or does it have the same problem?

[@weebthatlifts5750]

i just got a restocked 750w so i think i may have gotten a revision?

[@luish.1950]

I took corsair sf750. .this 1 is super loud, this noise cannot fixed rite?

[@peterjuma7620]

:( man my first V850 SFX just stopped working then bought a new one yesterday installed it !! works good now watching this video also meant that i have to get it replaced again with the revision cause so far the fan goes on then off in some older game that requires lower power draw

[@chlorosokita596]

Since you had some sort of contact with their customer service, you wouldn't happen to know if the V850 SFX will be available in white at some point?

[@MachinesMore]

I haven't heard, would be awesome though.

[@chlorosokita596]

Just yankin' your chain, to be honest. I wanted my first build to be a white-themed encoding workstation. Pure Base 500 + Asus X570 Prime Pro + Ryzen 9 5950X + Shadow Rock 3 + 4×32 GB, 3.2 GHz Ballistix + RTX 3090 + 3×Arctic P12 PWM PST. I really want the V850 because it really seems cool but that would be really sad if only the power supply gets the black treatment.

[@gurta7101]

So silverstone and be quiet was right, fanless feature in psu was stupid idea

[@ch3573r90]

My PSU Fan is running constantly on 100%, it's insane loud, is there nothing to do?

[@theopszone6775]

Would this fit in the fractal mood?

[@davetechme]

Normally fans don't bother me all that much, but even my 2 year old said, "Too loud!" 🤫 Not looking good for the V650 and V850 I ordered. Maybe I should've went with an SF600 and SF750 instead?

[@MachinesMore]

My n=1 experience with toddlers and tech stuff is that my son is strangely always right. 😂 I don’t know that the SF600 is much better than the 650 in noise (at load they’re about the same noise level, maybe the SF600 is a tad lower) but if your setup is one that might result in the fanless behavior triggering back and forth then I think the revised version will be better. It’s possible you’d get the new version, but I was told right now inventory is a mix. Otherwise I think the other features of the V650 give it a small edge over the SF series. I don’t have a big concern with the fan on the V650, the 850 is where I noticed it.

[@davetechme]

@@MachinesMore Yeah, my kids are pretty intuitive. I should take a hint, lol. Will it say on the box somewhere that it is the revised version? Just checked my V650 box that I have yet to open. On one of the sticker labels, it says "semi-fanless operation" but the operation portion is written over with some other lettering that I can't make out. I guess it doesn't really matter though if CM is willing to replace them. As I'm sure you hear on a daily, thanks for all your amazing in-depth NR200 coverage. You basically left no stone unturned. Hope you get a chance to check out the SSUPD or Xproto as well. :)

[@tuliosoto4546]

Is there any way to identify the newest revision of this PSU? Mine arrived recently after pre-ordering one month ago and the box still shows the 15% fanless feature. I was expecting the newest version tho

[@MachinesMore]

The inventory is very likely a mix as I have heard- the info I have is April is the date, and I hope at that point they can exchange units for folks.

[@portogonzales7027]

Just received the 850W SFX psu today and am now running it in my Lian-Li system. And yes, the fan ramps up and down with simple browsing and it's quite annoying to say the least. I don't want to return it because I've waited 1.5 months for this unit and there aren't so much high powered SFX psu's on the market anyway. Isn't there a fix for this? I'm thinking of simply put a resistor in the + cable to decrease the voltage to the fan so its 12v full speed will be something like 7v medium speed, but I don't know if the psu will overheat. Or maybe disconnect the fan from the main board and regulate it yourself with a fan controller?!

[@MachinesMore]

Hey there- my advice would be hang on to it until you can get the replacement from CM in about a month or so when they have guaranteed inventory. I guess the scarcity of some parts is part of the issue right now and even if we wanted to grab another model it’s not available.

[@Clarity520]

850w is like the bare minimum if you pair a 5900x with an EVGA 3080 with 450w BIOS. I just ordered mine for that exact reason and hopefully it is the revised version ;-;

[@australvoid8032]

I'm running a 430w bios on my 3080 and a 5950x heavily overclocked, and the corsair sf750 is handling it just fine. That said, this PSU has lower voltage ripple, but I think your overthinking things. My power draw is definitely higher than yours.

[@Clarity520]

@@australvoid8032 my rough calculation was like this: CPU 250w + GPU 450w + mobo 100w and that already set me at 800w which is kinda scary. But your comment does reassure me a bit lol. In fact I was gonna go with SF750 initially. But since it’s oos everywhere here in Canada I had to go with Coolermaster instead. Unfortunately judging from the recent customer reviews under the Chinese online retailers it looks like it’s still a hit or miss situation.

[@KyzerXY]

Does this only affect V850? I'm planning to get a V650.

[@moasto02]

I think EVGA's Supernova GM sff psu's do something similar to this. It gives a very audible spike that almost sounds like a growl when starting to game to run benchmarks.

[@tommysheal]

Package date shown on my V850 SFX's power cord bag is November. I still experience the same issue.

[@UnknownUser-fg3fs]

How do I know I have the new model ? Going to bite the bullet on this as I can't find the SFX 750 by Corsair anywhere in Canada 😞

[@ntrefz]

Is there any way to know from the packaging which version you have? Or from the unit itself? I won't be able to put this in a build for awhile, but snatched one anyway.

[@MachinesMore]

Yup, the revised ones do not have the 15% fanless indicated on the box.

[@allenramollari9418]

they are all the semi-fanless. there is no revised unit in the market yet.

[@ntrefz]

Ok thanks. Damn... PC building is such a pain right now.

[@MachinesMore]

I haven’t heard anyone getting a revised one yet but the inventory is supposed to be a mix at this point.

[@GordonLazarte]

I just returned this psu. Was way too loud. The fan would go from 0-100 from idle when opening Google chrome. If I try to play any games the fan was consistently at 100 %. Luckily for me the Corsair sf750 was in stock and that psu has been amazing. Absolutely silent and installation a breeze. The CM psu had incredibly stiff ports and cables (some may prefer).

[@CknSalad]

SF750 is basically the gold standard lol. too bad it gets out of stock easily...there's a 850w rumored to be on the way.

[@GordonLazarte]

@@CknSalad yeah it was the one I always wanted. But stock was impossible. Then I saw the CM psu get released and I figured since I was going to build in the nr200 it would be a perfect match. Real unfortunate the psu sucks.

[@che2602]

Have a semi fanless v650 sfx. Super annoying behaviour. Every time I scroll on or load a web page it spikes from 0 - 100%. Absolutely infuriating.

[@jasonh6799]

Lol I just ranted about it on Reddit a few days ago here’s my original comment: was just going to complain about it. its a semi-fanless design and the fan only kicks in at 15%load. it could get quite loud and the worse thing is my idle load is probably at something like 10%. because whenever i do something with my computer (literally just opening another tab on chrome) the fan engages, and turn right back off and its pretty annoying. wish the fan would be controlled by psu temps instead.

[@MachinesMore]

Yup, that's indeed the behavior. If you had the right hardware that put it right at the cusp of 15% then you would see the fan act up like that. I think I mentioned this but because I had an OC'd 3700X on the V650 test system, it was basically always on at a low level and never built up enough heat to cause the fan spike. The SFX unit that I have in my daily driver has been the 650W EVGA- and this fan never comes on, I'm talking up to 450W of draw and it still never kicks on. But when it does (and it finally did when I threw the 3080 in there to test it out), oh man, run for the hills loud. So I think some balance is good, I'm hopeful that just having the fan run very slowly at low draws will resolve the issue.

[@LRRPEXILE]

I went through so many obstacles trying to get the SF PSU and I really wanted the 1st option (SilverStone SFX 1000W) the 2nd option (CoolerMaster SFX V850W) or the 3rd option would be Corsair SF750W ... Now I kept reading bad reviews on the 1st and 2nd PSU, I was really skeptical, but I needed the SF PSU for my Lian-Li Mini... So, desperately trying to get either one, I wound purchasing 2 SF PSU around the same time! The (CoolerMaster SFX V850W) and the (Corsair SF750W)... CoolerMaster SFX V850 only comes with actually 2 (PCI-E 6+2 cables) and each one with an extra 6+2 attached which I don't like... I don't know if it were my (PCI-E Type 3 cables) but the CoolerMaster SFX V850W PSU wouldn't power up my system? - In the end, I wound up using the Corsair SF750W because again, I had 3 separate individual sleeved PCI-E Type 3 cables for each slot which I prefer to connect my 3080 and so far I have no issues.

[@MarcParisTV]

Good catch! Definitely 2020 sfx psu has fan issues, like sx750...

[@djglobol]

I have a v850 coming in 12 days. Hopefully it’s the revised version.

[@MachinesMore]

Yup. If it is feel free to share your experience! I’m curious if that remedies the issue.

[@djglobol]

@@MachinesMore all lies. I tried to rma my annoying psu. This is their response. Hello, We are working on the registration on the serial number. Please note that the Semi-Fanless function is standard on these power supply. Your replacement will have the same feature. Please replacing the power supply will not change the fans speed setting. Currently all of these model have this feature. If you are looking for a model without the semi-fanless it is currently not available without this feature at this time. Thank You CM-USA Support

[@gil80]

I hate this PSU for this fan. Is there any modd that can be applied to get control over this fan?

[@riaan_za932]

i have 850V but the fan ramps crazy, when ever i move my mouse it will ramp, decided to remove and switched over to my sf750, my setup was 5950x with RTX3090 in a nr200p, for me it was to much to take ramping fan every time i move my mouse

[@MachinesMore]

I can see that being an issue too- the way Ryzen activates/sleeps cores causes power spikes which will inevitably trigger the fanless/fan issue. I would think that CM disabling the fanless feature will help create a more gentle transition.

[@jusmtb687]

how will i know if its the revised version?

[@tombirge8632]

The box for my v750 sfx has a "15% fanless" graphic on the box, guessing it's pre-revision.

[@MachinesMore]

Yes.

[@deesee76]

I just bought this psu , the psu fan is nosiest component in my build and the fan is constantly on. Wish I could control the fan curve.

[@ouioui51100]

Damn I just received it

[@MachinesMore]

That's pretty much it, it clears out the backed up heat, after that point even if the load increases it just hums along slowly like what you'd expect.

[@puddding9544]

absolutely pleased with the nr200p, its been amazing and since i haven't been putting my pc under any large load it's been almost quiet, unlike with my last pc.

[@ROC1337]

I'm building in the NR200 for the first time with a 3070 Founders Edition and I'm wondering if I should go with the C14s with the extra Noctua NF-A12x25 or the U12A as intake. I want the best performance for the GPU. Any advice would be greatly appreciated! Thank you

[@GoWtheFlow]

Check out his video on the large cpu coolers in nr200!!

[@ROC1337]

@@GoWtheFlow I've actually watched all his videos on the NR200 and his more recent videos seem to show the U12A as intake but that his older video specifically on large cpu coolers says the C14s with the extra fan is the best. I'm mostly trying to get an updated opinion and possible his opinion on my specific founders edition 3070 setup.

[@MachinesMore]

Hello Richard. Either is fine. The later videos have the U12A because I tested differences between vented and glass panels and the tower style is the only one that works best for both panels. If you are at all considering to use the glass panel I would go U12A, otherwise you can’t go wrong with either, both U12A in rear intake and C14S allow the GPU to perform similarly- more or less they don’t impede it.

[@Lwhchris]

*Long comment but I hope this helps as a fellow user of the NR200P with a 3060 Ti Gaming X Trio* If you want the best performance for the GPU, mount it horizontally, and fit 2 fans at the bottom as intake, preferably 15mm height fans to have some clearance with the GPU. It will lower GPU temps by approx 2 degrees from what I know and increase CPU temps by a bit, but I dont think that will be the case if you use the CPU cooler with rear intake. You can use some software to configure the bottom fans to spin according to GPU usage and temps for best GPU cooling. I used to have a Noctua U12A on a B460-i Strix and it doesn't fit with the glass panel, only the mesh panel. Not sure with the U12S tho, can't seem to find reliable answers on the internet. No doubt the best cooling you can have for your CPU if you use the U12A for this case, assuming you are not considering AIOs. Some are saying a Scythe tower cooler outperforms the U12A but I can't remember the model atm. I can search for the info if you wish to know. You can try the Hyper 212 Black Edition and perform a small hack for it to fit with the glass panel, video linked below, my setup atm as well. However, take note that the Hyper 212 Black Edition may have RAM clearance issues as the cooler is not offset in design (like how the Noctua U12A is, the heatpipes are shifted to the left), no issues if you configure as rear intake, but push pull config you would need a 15mm fan at the right side (the side of the cooler facing the RAMs). kzbin.info/www/bejne/rGq4o3SOgbuSiNU

[@funnyarc]

@@Lwhchris Even lower temperatures results are achieved by undervolting+OC and deshrouding the GPU, placing 2*14cm noctua ippc 2000rpm fans at the bottom, place the 2 fans as close against the GPU's heatsink as possible to increase air pressure, and for the CPU use the Noctua C14S with open mesh panel and top 1* slim fan and 1*25mm fan, or Scyte Fuma 2 with tempered glass panel and top 2*25mm 12cm fans like the Noctua 12cm ippc 3000 fans (configured with fan curves, 25-30% under 60°C, 40% on 65°C and 80-100% on 70-75°C). Deshrouding has a chance making you lose your warranty though, especially if you need to remove the heatsink to do it (Gigabyte doesn't add warranty stickers, but thermal paste might get air bubbles and might need reapply (gelid gc-extreme would be great), that however definitely leaves evidence, thermal pads are all kinda loose or by dust, hair or fingerprints, depends on how throughly and the amount of asshole the RMA guys are), so be careful. The 3060 TI Gaming X Trio luckily does not require removing the heatsink, you unscrew all the screws that can be found on top of the heatsink, removing the fans and the shroud, note you might leave evidence here, since the top of the screws may not look pristine. You then unplug the mini 4 pin fan cables and RGB ribbon (be Very careful, this cable is Super fragile, entirely held on the shroud by the solder point, super easy to rip off). If you get a mini/gpu 4 pin fan > normal 4 pin fan cable, you can connect your own PWM fans directly to the GPU, no need for Argus Monitor, be sure to not exceed 0.8Ampere per fan port. Nice thing too is this will slightly decrease the length of the card, since end of the shroud were the heatsink ends adds around 8mm. With the increasingly high costs of mITX motherboards and SFX PSU's, instead i got myself a used sff case which looks almost as small as the NR200 for me (i measured about 28cm*37cm*22cm), but fits a mATX motherboard like the Asrock B550 Pro4, ATX PSU's, 190mm CPU heatsink and can do 347mm long GPU's. I did have to do a little modding and cleaning here and there, but it has great cooling. It looks nice, but the NR200 looks nicer and might be easier to work with, but it was a little annoying only being able to use expensive small components (can't find SFX 750-850 Watt for over 3 months now...) or lose additional fans or stuff.

[@clarrencejose6461]

I think I got lucky on getting the V850, Mine doesn't ramp up whenever I turn it on. Solid Review and updates tho!

[@francisyusuke6211]

I got mine and it ramps up crazy just by webrowsing do you know the rev number of your psu?

[@IhsanAmin]

Getting an sfx power supply is painfull

[@MachinesMore]

Worth their weight in 80 PLUS GOLD... almost :)

[@Uulaalaa]

I bought the V850 3 weeks ago, I immediately sold it on eBay because of this. It was noisy af. Glad that I kept my Corsair 600w. Which is finally enough to power my 3080. Ps: thanks for your video about this and all your crazy work done around the NR200, you are a king

[@watch3r9]

It's still not listed on newegg. Please partner with Corsair for SF750 and maybe SF850 power supplies :D

[@IHyperGun]

How do I know if I ordered rev1 or rev2?

[@mob5613]

Any update on when the revision units are coming out ?

[@MachinesMore]

Current advisory is that April is the current timeline. Previously I was advised that there was a mix of inventory on the market, although CM may have had some trouble in the distribution channels or didn’t have correct info at the time.

[@mob5613]

@@MachinesMore thanks for the update. Appreciate you making these vids for emthusiasts like us !

[@gulielmi2002]

I have the 650 unit and it whines like a pig. Ordered it from Amazon, so I am skipping the warranty route and submitted an exchange request.

[@sendnoodles2486]

I definitely don't like the semi-fanless feature on mine. I prefer the fan to be on or at least automatically switch on when the temps reach a certain level at the very least. Instead, if I let my PC idle for long periods of time, it will just heat up and reboot rather than switching the fan on. Its completely fine at gaming loads with a 5950x and 6900xt since the fan is running at load, but at idle, the power draw is not enough to trigger the fan to run.

[@MachinesMore]

That's exactly it- it needs to idle for some time to build up enough heat to make it spazz out. I'm actually a bit surprised that a 5950X and 6900XT wouldn't cause the fan to run regularly, since the threshold should in theory be crossed with your whole system, even at idle loads, may just be at the cusp.

[@sendnoodles2486]

@@MachinesMore the 6900xt has some low frequency stepping states at 0-50mhz for idle and I've undervolted my 5950x via precision boost curve optimiser. According to my UPS my system pulls 80w at idle, which would be around 64-72w actual power running the system at idle with the AC to DC conversion loss. The fan should be kicking in at around 130w power consumption, but it doesn't. I've tried using CPU-Z to generate an all core load on the CPU, which should be around 140w at my settings from just the CPU alone but that doesn't get the fan spinning either so something is bugged there. I've found that it takes CPU and GPU load to get the fan spinning. Can't wait to swap it to a revision 2. I hate not being able to turn off semi fanless modes.

[@Oldsah]

If I want to know about PSUs I read reviews from Toms. Generally cant go wrong with them

[@TheHulkminator]

Bro, please can you shed some light on the Silverstone SFXL 1000Watt unit? a lot of people complained about how noisy it's.

[@MachinesMore]

Thanks for the recommendation- I haven’t tested that yet but will try to do that in the near future.

[@TheHulkminator]

@@MachinesMore thank you so much man, keep that content coming, all love and respect from Dubai

[@CknSalad]

@@TheHulkminator Silverstone SFX and SFX-L psu fans are on the noisy side. would honestly avoid as much as I like some of their pc cases.

[@TheHulkminator]

@@CknSalad I got the 800 Watt from SS, working like charm so far.

[@OldDolio312]

This is the only sfx 850 available so has this issue been fixed?

[@MachinesMore]

Update coming tomorrow morning!

[@ericjin7452]

Your video had me thinking... this shouldn't bother me... until I undervolted my CPU and all my fans have slowed down to a nice quiet hum and my v850 unit starts yelling at me.

[@Caaataybey]

I wish I could RMA my unit but I doubt that their distributor in my country would even try to understand this issue. CM should launch a program to replace these DEFECTED units in all the regions...

[@filiplaskovski9993]

My one’s fan makes a slight grinding/vibration noise when on does anyone else experience this ????

[@bigship7148]

Is it loud?

[@BSEUNHIR]

Ah, so that's why my unit's fan is never off. Not having a good time with my white 850W unit, though. It's loud AF. Heavily overpowers the 2 140mm fans in the system.

[@markbrown1987]

F*ck, and I was just about to purchase this as well. At this point the Corsair SF850 would probably be hitting the shelves faster than the revised v850 sfx considering that their OEM (Great Wall) for their SF line already has an 850w sfx for almost 5 months now.

[@Tava]

honestly thought i was going insane. even opening a browser or something it ramps up randomly. also when my pc enters sleep mode it ramps up for like 10 seconds lmao. i guess replacment is only fix (using 850w sfx with a 3080ti and 10900k)

[@vicorqa]

how long took you to get you replacement unit ?

[@ianross669]

I'm worried about this video, because Cooler Master is not responding to RMA requests on this or acknowledging it, at least consistently. I for one have two of these and they are not responding to my RMAs. The info here is partially misleading as the issue is not at all limited to "lower power systems". I personally have an NCase M1 with a 5950x and a Asus TUF OC 3090 and the fans pulse/spin up about once every 3-10 seconds in medium to light workloads. The issue is caused by workload, not the spec of your parts since most parts run in low power at idle all the same, whether you have a Ryzen 5600x or a 5950x for example

[@MachinesMore]

Ian, sorry to hear. I’ve mentioned this to Cooler Master’s team in charge of power supplies and have their assurance. There’s an update coming tomorrow morning on the new units- please comment in there if you could, I’d like to consolidate everything, at least that way there is better traction. Was really hoping things had worked out by now but I do realize they didn’t necessarily have inventory.

[@ChatGTA345]

@@MachinesMore has there been an update?

[@OmaSwag]

You brave enough to do a psu fan swap? Noctua in a sf600

[@MachinesMore]

It can be done, but the fan isn’t the big issue here right now, more the controller. Until they fix that any fan is going to spike after crossing the threshold.

[@OmaSwag]

I’ve heard we would have to switch the pins around to get the fan working. I’ve tried to attempt this but unfortunately the sf450 has a 2 pin dc header and I would need 3 or 4 fan converters which is not worth it. The 4 pin that the sf600 and sf750 have would only need 1 splitter and a changing of pins on the header to match up.

[@nathanc2952]

My v650 does this hopfully they let you exchange it bc its the most audible thing in my system when just browsing.

[@ItsMe_K3]

I was about to send my RTX 3080 AMP Holo back via RMA because I had a weird fan ramp everytime it boosted... Luckily I came across this video and I noticed its the stupid fan on the PSU... Hopefully the EU RMA works the same way

[@najeebshah.]

i have a weird rattle in my sfx750.. i got it in December 2020 , the fucker rattles in some games and its making me crazy

[@nathanielmedina6803]

Does this also happen on the CM 650sfx ?

[@MachinesMore]

Yes, but, my observation with a higher powered CPU is that it came on earlier anyway so it didn’t build up as much idle heat, so there wasn’t noticeable spikes. Basically it runs idle for awhile and then once it hits the threshold it’s like “yikes too hot” and tries to clear it all out right away, then it goes back to being more mild mannered.

[@ak0313]

Couple of days late but with my build I have this exact issues with my cm 650sfx. But I do have the 5600x with a 3080 instead of the 3070

[@djglobol]

My v850 psu came in today. The box says 15% Fanless on the front of the box packaging.

[@TheHeavenswake]

Yeah got hime from amazon the other day and just started my build, same semi fanless model. I have a SF750 as well but really wanted the 850 cause of my high power system.

[@fifafutbeast]

@@TheHeavenswake have you had any noise issues with the 850?

[@TheHeavenswake]

@@fifafutbeast I just used the SF750, didn't want to risk the issues with the corsair 850.

[@fifafutbeast]

@@TheHeavenswake I see, thanks for the reply

[@liln3o]

Anyone in the UK waiting on the Nr200p? Ive been waiting since November 😢

[@FeelingSimple]

Order it from Germany, it’ll cost more but you’ll get one

[@JaleelKing]

I get this behavior with my 650w. I want to replace it but good SFX PSUs are extremely hard to find over 650.

[@MachinesMore]

Hey Jaleel, if it bothers you I would definitely reach out and see about the revised version. I would agree that there isn’t a huge amount of selection out there but I really like the 650w I’ve been testing, personally I’d choose it over the Corsair SF600 gold.

[@JaleelKing]

@@MachinesMore My build is kind of ridiculous if I'm being honest. I have 5950x with a 3080 in an NR200p case. I somehow managed to fit in a Be Quiet 280mm pure loop. I'm not sure if 600w would be enough?

[@MachinesMore]

You know, it’ll probably run fine but you don’t have much headroom there- I’m just doing a back of the envelope calc and your total system at full load (not that this would regularly happen but could) would be somewhere around 550-575W (depending on your particular 3080 it could be more). Personally I wouldn’t do either the 600 or 650. 750 would be my minimum just for a little headroom.

[@CknSalad]

@@MachinesMore just undervolt the 3080 (plenty of good guides), which can shave off a good 30-50 watts at little performance loss. 5950x I'd try an undervolt pbo oc configuration. I'm honestly annoyed that Corsair didn't just update their line to 550w, 650w, 750w, and 850w (supposedly coming). It is cool though that they make a premium 450w sfx psu. 600 watts is in that annoying zone of...it's enough...but not quite sure for certain workloads and games for high end builds.

[@MrMullen71]

Got one with the semi-fanless feature. 5900x, 3080. Oh my god is it the most annoying this just idling. Randomly, while watching youtube videos the psu will crank to 100, back to 0, back to 100, back to 0. Its ridiculous. I submitted an RMA about a week ago and have still recieved noi confirmation back from them. So far i wont be reccomending coolermaster to anyone until i can get this POS swapped for something reasonable.

[@go_yixiong]

The annoying fan behaviour is kinda similar to my new EVGA SC ultra gaming 1660 ti graphics card fan. 🤣

[@gctdonyre]

I'm glad I got a Seasonic 850w Focus GX for this case.

[@phil_matic]

Is that a SFX psu? because if ATX PSUs fit then what's the point in struggling to find an SFX PSU to install

[@RaynoldTanYX]

@@phil_matic CoolerMaster does provide files to 3D print an ATX PSU adapter for the NR200, but using it will occupy space for a longer GPU and the top fan

[@thebambinofan]

My 550w died. Heat spikes did it

[@kevanu]

lmao i just ordered the v650 and was about to return the sf600

[@cigoss]

Go to SilverStone SX1000 SFX-L

[@ChatGTA345]

I've read there're some other noise issues with that one too :/

[@cigoss]

@@ChatGTA345 The Silverstone SX1000 has no problem. I have one version 1.1 in my SFF NR200P.

[@ChatGTA345]

@@cigoss Awesome, noticed other positive reviews for 1.1 as well!

[@cigoss]

@@ChatGTA345 www.alza.co.uk/search.htm?exps=sx%201000