There's More Power To Be Had!? - Nvidia RTX A4000 Power Shunt Mod

[@RedFissionStudios]

Nice video, Very underrated channel.

[@WiltshireTutorials]

Thanks! I'm glad you liked it! I've gotta be more consistent if I want to be known more!

[@epico5805]

Nice to see another addition to these rtx a4000 vids! Well done!

[@WiltshireTutorials]

Thanks! I'm glad you're enjoying the A4000 content as much as I am just messing around with the card.

[@chinchin3274]

I was disappointed that Nvidia hasn't offered any ITX GPU's that offer tangible improvements over the previous generation, so I decided to build myself one of these. So far, I have installed only the cooler and 8-pin connector, but the performance compared to the Gigabyte 2070 Mini that I switched from is insane, and I haven't even power modded or overclocked it yet. I plan to power mod it soon. I think the final step for the ultimate sub-180mm GPU would be to flash a modified bios or a Geforce equivalent onto it to support zero-rpm fan mode and set default clock speeds to 3070 levels without having to use Afterburner. I don't have enough technical knowledge figure out how to do that, so fingers crossed somebody can and will.

[@WiltshireTutorials]

That's the main reason why I made these videos and decided to mess around with the A4000. Not too many options out there for ITX GPUs these days. I'm glad that you're enjoying the performance bump compared to your 2070. Overclocking and power modding really opens the door for the A4000s potential. The problem with flashing the BIOS is that you will lose the benefits of being able to use ECC VRAM. I personally like having the ability to turn it off and on when I need to. I set my own custom curve in Afterburner for the fan and it's quite well. Maybe give that a shot

[@KSINGRAM]

This is a great mod spent all day yesterday optimizing my build for the best performance I was able to do a +210 core clock and +940 memory clock so far and it passes Timespy, Novabench, Heaven Benchmarks, and a game of warzone with DLSS on. So I think it will be stable on most workloads with those clocks. Timespy graphics score is 13100

[@WiltshireTutorials]

That's awesome to hear! I'm glad you're enjoying the mod! Those are some pretty good clocks! I usually get away with +220 on the core and +985 on the memory for everyday tasks. I seem to have hit the jackpot for the silicon lottery.

[@KSINGRAM]

@@WiltshireTutorials I ended up doing +210 on the core clock today because if you go over 950mhz core clock in games with dlss on or a use a tensor core workload it will cause soft crashes but, for everyday tasks it will be stable. and I went w +900 memory clock w a 99% power limit for a performance boost and to stay under 200W on the gpu..I then set my cpu (5700x) into 45W Eco Mode. GPU and CPU temps are much better now as I’m using a 8.1L SFF case. Tops out at 64-76C under load for both GPU and CPU. Really happy w it and I would recommend it to everyone who does SFF builds.

[@michaelthompson9798]

Impressive mod work once again Wiltshire 🥰🤩💪👍. An impressively powerful little GPU imo. How does the power efficiency go after all the modding just for the GPU?

[@WiltshireTutorials]

Thanks! I'm glad you enjoy the A4000 content. I'm pretty into it at the moment! It's an awesome little card to play around with. The power draw does increase. With my overclocks, I saw a power draw of about 195W on average. It has peaked up to about 205W, but only briefly. The stock A4000 is locked to 140W. So, if we crunch some numbers, we'll be able to figure out the percentage increase in power draw; 100x[140-195]/(140+195)/2 = 32.8358% If we round up, that's 33% increase in power draw. If you're not interested in overclocking and want to know how much power draw the A4000 has after the power shunt mod (you'll still see a performance increase after modding with the stock clocks), then I saw about 175W on power draw. Crunching some numbers yet again; 100x[140-175]/(140+175)/2 = 22.2222% You'll see about a 35W increase (no overclocking) after shunt modding. That approximately a 22.22% increase on power draw compared to a stock A4000.

[@johncampbell4084]

Awesome! Great work!

[@WiltshireTutorials]

Thanks! I'm glad you like it 😁

[@ReQuiem_2099]

This is crazy impressive, and well put together. Good job man! Based on this data, would it be fair to say that this puts the modded/overclocked A4000 solidly into the 50% mark, between the 3070ti-3080? It would seem to compare very well against a stock clocked 3070ti, but given the recent 4070 release, I'd imagine that it falls roughly 10% under both the 3080 and 4070. Making it a very solid contender for taking advantage of Cyberpunk's recently released "Overdrive" features. Making 1440p with overdrive, actually playable.

[@WiltshireTutorials]

I appreciate the kind feedback. I'm glad you liked the video! I would say it would slot in-between the 3070Ti and the 3080. Closer to the 3070Ti than the 3080, but still impressive to say the least! I do not have a 3080 to compare things, but I do have a 4070! So, I can share the benchmarking data with you that I took before I gave the Snowfall Build to the person who commissioned me to build it for them. Both sets of data were collected from the same build, so it should be ab accurate comparison

[@ReQuiem_2099]

@@WiltshireTutorials Very cool man! I understand the extra effort involved in producing a whole new video for limited additional viewership value. I don't know if you are providing this data openly, cloud hosted somewhere, but I'd love to see your results.

[@WiltshireTutorials]

@@ReQuiem_2099 Currently haven't distributed/host any results. I've debated on making a website to publish all the results that I've collected. I'll provide screenshots of my results for you though.

[@J.I.R.A]

Dude this has got to be insane with the new A4000 SFF Ada. It’s got half the TDP and an AD104 chip that sits between the 4070 and 4070Ti. I wonder if it could perform in between them with a power shunt + SFF mod like this one.

[@WiltshireTutorials]

We'll try to take a look! I've been trying to get my hands on the new A4000 ADA.

[@J.I.R.A]

Pffff I hope it can be done, with the 8 pin power connector too. I’m at a point where I don’t know what to do… get an a4000 and the mod kit, wait for a 4060ti 16Gb to have access to DLSS 3 but worse performance than the modded a4000 without it, or wait to see if you guys can pull it off with an A4000 Ada, which could perform better than a 4070 while using less power and having DLSS 3 too, and pull the trigger on that. 🤔

[@WiltshireTutorials]

@@J.I.R.A we never know until we have the GPU in front of us. Basically we'll have to go the same route as the A2000. Adding additional power might be tricky. It is a different architecture, so what worked on Ampere may not work for Ada.

[@J.I.R.A]

@@WiltshireTutorials I understand, can’t wait to see if it’s feasible! Where would you communicate/update your community if an RTX A4000 Ada mod is possible? I’d like to stay up to date 😄

[@WiltshireTutorials]

@@J.I.R.A I'd more than likely announce it on this KZbin channel.

[@itboy6934]

I have dell precision 3660 with 13900k, 64gb ram and rtx A4000. Its a beast

[@WiltshireTutorials]

Sounds like a beast!

[@randyforce8406]

I just ordered a JK&G mod. Apologies if I missed it, but what driver package are you running?

[@WiltshireTutorials]

I hope you like the mod! I think I forgot to mention it in this video. But, the driver version that I was using at the time of filming this video was R525 U5 (528.49)

[@randyforce8406]

@@WiltshireTutorials Thanks!

[@WiltshireTutorials]

@@randyforce8406 No problem!

[@Dakitty]

Out of curiosity, does this service still get offered, and would it function in tandem with N3rdware's a4000 single slot cooler modification?

[@WiltshireTutorials]

Yes. John is still offering the shunt modding service. I would recommend not using a shunt mod with the single slot cooler, as it won't be enough to cool the card off

[@Al3ksandrOrlov]

Awesome video, would it be possible to mod a 12th Gen Optiplex?

[@WiltshireTutorials]

The 12th gen Optiplexs differ from OptiFlex by quite a bit. I would say it's possible. But, there definitely would be different steps that need to be taken

[@J.I.R.A]

When you talk about the unmodded A4000 I assume it is before doing anything at all to it, right? Do you have the numbers for the Shunt Mod without overclocking for the gaming benchmarks with the 7600x? How much power does it use?

[@WiltshireTutorials]

That is correct. Unmodded means completely stock. I mentioned power draw and such in previous video: kzbin.info/www/bejne/e52agZRnbtmnn8k

[@J.I.R.A]

@@WiltshireTutorials just watched it! Thank you very much mate! Very very useful info :D

[@WiltshireTutorials]

@@J.I.R.A You're welcome! Glad you found it useful

[@KillerKaijuu]

How is the noise? I currently have one of these in my system, however have been having trouble figuring out a good way to decrease the pitch of the fan. Have since swapped it to a noctua and deshrouded it, but I do not think that helped very much haha

[@WiltshireTutorials]

It's pretty quiet. Especially when comparing it to the original blower heatsink that comes on the A4000. Then again, I'm probably the worst person to ask about noise. I don't really care about noise of fans too much. It doesn't bother me too often. I prefer more performance over noise.

[@KSINGRAM]

If I have an A4000 with an itx fan swapped already can they just add the 8-pin shunt mod to it? (Mine has fan connector that plugs into mobo for better fan controls).

[@WiltshireTutorials]

Yes. On the JKG Ventures website there is an option to select "I will provide the cooler" and it is cheaper.

[@valentinolli8955]

The thermals and fan noise can't be so good anymore at 200w, right?

[@WiltshireTutorials]

You'd be surprised! The improved cooler does a really good job compared to the stock A4000 cooler. The fan noise is better too. All my tests are done inside a PC case and not on an open air test bench. I was seeing about 71°C at 85% fan speed. By lowering it to 60%, the thermals went to about 74-75°C. Keep in mind, that those results were from synthetic benchmarks designed to hammer the GPU as hard as possible and that I was running a really aggressive overclock. In real-world applications, like gaming, rendering or editing, the card runs quite cool for being modded and heavily overclocked.

[@szymontrojanowski7565]

That's not how percentages work, you can't tak a percentage of value X and simply add it to a percentage of Y...

[@WiltshireTutorials]

I'm all for constructive criticism and improving my testing. What would you do differently?

[@szymontrojanowski7565]

​@@WiltshireTutorials time spy is one of my favorite benchmarks, so let's take it as an example. Stock score is 11721 Modded+OC 13692 No bottlenecks 14142 Increase over stock is 13692/11721*100%-100%=16.82% I suspect that You calculated how much less is stock, because it's about 15%. Next we have max score compared with modded performance 14142/13692*100%-100%=3.29% (difference between that and your 3.23% could be rounding error) Overall performance increase in your video is presented as 15.51+3.23=18,74% but that's wrong even if you did what I now think and both percentages are taking 13692 score as a 100%, then adding those together is mathematically correct, but it's not performance increase over stock, as it's represented by 14142/11721*100%-100%=20.66%

[@WiltshireTutorials]

@@szymontrojanowski7565 it appears like I'm going to have to take some time to review my testing methodology. Thanks for taking the time to write a detailed breakdown. I'm human and do make errors from time to time. At least I wasn't horrendously off with the percentages!

[@s1oth64]

Really cool idea playing with cards to see how far you can push one. But for me the a4000 is $2000 and I can get a rtx 3080ti for like $750 so not really worth it for me

[@WiltshireTutorials]

That makes total sense. I came across the A4000 for $475 (CAD), so I wanted to see if I could push it past a 3070Ti. A 3070Ti is about $650 (CAD) on the used market, at the moment. This video series is more of an experiment for those who prefer SFF builds. Not too many options for SFF GPUs these days. The single fan design of the modded cooler works perfectly in the case of a SFF build. The GPU is also really efficient and sips power. Definitely helps cut down on heat and thermals.

[@s1oth64]

@@WiltshireTutorials I thoroughly enjoyed the series even tho I will probably never do it myself. Was crazy to see what people play with to push cards

[@WiltshireTutorials]

@@s1oth64 I'm glad you liked the series! I may have another video on the A4000 at some point, but it's about putting it into MiniFlex and seeing how it does. Should be a fun one to make too!

[@KSINGRAM]

I was able to find one for $410 shipped already w An itx cooler

[@WiltshireTutorials]

@@KSINGRAM nice!