Razer Blade 15 - Can we use RAM power supply for VRAM? Going the extra mile for the customer

[@Temugraphy]

Hello sorin. That was my laptop and thank you for helping me fix it. I've managed to fix the windows issue and everything is going well. I know now to never trust razer again.

[@kaypdss]

what about the thermal paste over the thermal pads arround the toasted layer?

[@kumarshubham3230]

If you can afford it do an experiment find a dc to dc mini step down converter and set it around 1.2 to 1.3 v And connect it to your main power you can find a tiny one so you can fit it inside thats all you will have a working gpu, **Do it at your own risk bro***😅

[@washingLad2014SamsungDestroy]

but the problem is that you cannot find a one that can do like 10 amps we are talking here about a RTX 2060 max q

[@F1rewheels]

Sorin the VRAM test with GPU-Z was on Intel Graphics!!! Look at the Intel Logo 33:05 u must switch to NV on the app. The Laptop was Online and installed Drivers on 34:06 thats the reason why the display turns off/on. Your work was maybe good ;)

[@larrywildman4381]

what about adding a cheap switching power module. At 1,35v not 1,2v .... gddr6 require 1,35v. In alternative, you can take it out from spare motherboards. Time ago there was a trend in the gaming community entusiasts .... they ake the gpu psu from old card, like 690 to use it with newer gpu to pump as much power possibile. So, it's not impossible at all. A bit complicated, but doable. The main problem with a laptop is the space.

[@mart43]

Space is the problem with laptops, everything is so close together.

[@ovidiutaralesca6882]

Held me on the edge of my seat, not gonna lie. Nice one!

[@SamiTM]

That wire didnt worked because its not proper calibrated.

[@luminousfractal420]

proper nice is not the same as proper calibrated😊

[@DIYRepairHour]

Sorin, in GPU-Z you did the render test on Intel UHD! (@33:10). The 2070 is GDDR6, which may require 1.35V, depends on the manufacturer of the chips. Samsung can go as low as 1.1V, but only on later revision chips. You would need to run a proper GPU benchamrk - like Superposition, Heaven, and Furmark. I don't think this 1.2V can support 3 things at load: RAM, VRAM, and Memory Controller (that is inside the nVidia chip).

[@IcecalGamer]

and the artefacting could have been caused by syphoning power from the RAM, since I-UHD uses ram as Vram

[@isahizhenfahm6576]

These are not the kind of content you'll find in other channels, you could only get it here. That's why you're a LEGEND sir. #undisputed 😂😂😂

[@zajac1209]

„Lol, we have a picture” - I heard it in my head when I saw the thumbnail…:)

[@yan7382]

I believe the memory voltage for the GPU's GDDR6 is 1.35 volt, 1.2v might be insufficient. Also in the GPU-Z software, you can select at the bottom in the GPU list the correct graphics (switch from intel to nvidia)

[@electronicsrepairschool]

I've seen it later, forgot to switch from intel to nvidia

[@5nowChain5]

It's now tweaked to be overclocked 😂😂😂😂

[@AMDNetworks]

now it is undervolted which is better

[@Negiku]

This has got to be the dodgiest attempt so far lol.😂

[@chaz4172]

Sorin, you and your work are fascinating...Love it☘

[@rems80]

Sorin you made me laugh a lot 😂. Great as usual 👍

[@mohgamer6442]

we need part 2 of this

[@MattyEngland]

Really enjoyed this one. 👍

[@sxaccess2011]

6:52 -- it's time for 'say hello to my little friend' 😂

[@intrax2tv]

Diana thinks so too!

[@pauldery7875]

Sorin, you are awesome, the way you pull us into your videos, It is Proper Amazing. Paul, USA!

[@Bruuhhhhhh]

What a fun attempt.. it was so relatable seeing Sorin going "yeahh i cannot repair this..." A bunch of times while on his mind is 100% going "but maybe.." It's a shame that even with the gpu and vram still working it cant be repaired.. It really sucks that razer has one of the nicest build quality on laptops but they're so unreliable.

[@zentechnician]

That red underfill is the stuff of nightmares.

[@aocaldas]

Sorin, you could use two Dc-dc Step Down Lm2596 3a Ultra Small Smd Mp1584, one for each coil!

[@CarMake]

Sorin! So many possibilities that end up in landfill and pollution and customer loses because someone does not want to even try and it's such a waste!! Thank you Sorin. Thank you for doing this and getting the job done!!! So many people back out too quickly but NOT you! which is why you are the MASTER! And those saying dodgy lmao. Everything is dodgy! It comes from factory dodgy! It was so dodgy it blew up in the first place! It's dodgy all the way down LOL

[@DracoMcGuyver]

Sorin, How could we tell you about the screen connector when this isn't a live stream?

[@MattyEngland]

Proper Calibrated Telepathy

[@HummyGG]

I like seeing Soring having so much fun :D dodgy style fun :D

[@arpiecepiece8222]

Love your videos. Thank you 🎉

[@servicetvlaptopcampina]

I think you got the wrong model, this is Razer Fried Chicken 15😁

[@jeramsadventuretv4905]

What ever you do as long as the laptop is working.. I really love it the way you work, and yes I'm on the right channel! thanks for sharing😇.

[@kenken5599]

ram memory thats crazy yeah ! mr.sorin humor as always

[@Iceking007]

My innitial thought was just remove the components, clean up the board and dont make it any worseby digging out the rot: replace the mosfets and close it up. However I then thought the burned layers are like rust. You have to dig out all the rot in order for it to be a proper repair. Once the board is stable and safe, then replace the mosfets, and reconnect all the paths so its function is mostly returned.

[@Hellhound604]

Ok…. Still a great repair… not a gaming laptop anymore, but good enough for general use… AND you had fun… AND learnt new things…. Not your fault if the manufacturer underdesign things….

[@yellouu_theree]

39:03 how is it that you are unable to check ? You can see volage drop across a wire under load

[@MasterJediSean]

Isn't it possible to put down some solder mask and then solder 2 replacement VMOS chips?

[@NabEEL.D.SYRIAN]

Try to print a separate circuit for MOSFET and plant it

[@kaypdss]

Sorin.. you can try to use the heatsink as a cooper conductor.. if you need a lot of cooper, you have it :)

[@mcgama88]

Why I loved this post is because I wanted a *razor, "nearly pressed the buy button". But take note the drive to thin configure left a specific and huge problem as motherboard with heat failure. The elegant repair shown, in fact managed whole operation, but shows where the larger issue as design "has a fatal flaw." As a sold product, it is fact as consumable, a time part to failure. Note, in many modern auto's, module end use also has a fail rate as "built in". I cite LED tail lights, for an example. Should I have been this customer, I thus, would have liked to see the underlying fail problem, as to simply know why (and what went wrong). *The burning smell as #1 issue. But such repair, may have allowed salvage as data. (files, photos, ect.). For the tech at work bench, I take notice of the best methods. And the work flow as to determine fault, and repair where possible. * I am never afraid to "brick" a unit, but where also, I work outside of sales. In the end, I am cheering as this view conquered fault. What ever built in design was unworkable as full long term repair was at least, a restore to operation and the reason as "why".. "revealed". I am a huge fan, and in awe as to see a master at work, with such fun commentary. My multi-meter beeps, but not to the skill shown to my delighted view as to watch and gain lessons. M.

[@SidneyCritic]

Should make a spreadsheet list of brand, model, and fault, then we know what brands have problems, ie, what not to buy.

[@supergeekjay]

Any of the modern single board, thin laptops will have issues. They're too powerful, with poor cooling. MOSFETS are blowing up all over the place with these, and with the CPU & GPU being soldered, they're not easy t replace when MOSFET blows and kills them. You can still get laptops with socketed CPU and MXM socket graphics, but they're $4,000+

[@whokares5852]

What's with the stains on the ram sticks, never seen that before

[@retrocomputinggrotto]

I take it from now on we are all to collectively known as Sorins Bad Boys?!

[@dirindirin3983]

Why don’t you use SMPS in order to supply that voltage, like adjustable LM2596, it can provide more than 3 Amps . You did that before , so please share your information with us .

[@m.i.b7689]

Sorin wab old motherboard sample or something

[@kiwichess]

VRAM voltage is definitely not fixed. But artefacts may imply that some of vram chips got toasted. What do you think guys?

[@DIYRepairHour]

If the laptop is 5 years old as mentioned, the VMEM will be 1.35V, not 1.2V (plus I bet it drops a lot under load, those 2 mosfets can't carry RAM and VRAM). Before testing the memory woth MATS that would need to be addressed first.

[@DIYRepairHour]

yeah just seen the moment he booted into windows. the 2070 is reported in device manager, but he does the render test on intel graphics!

[@SkyDown15]

It needs 1.35v, but it will work 1.2 if there is no load. If there is load, there will be artifacts, and crash. Higher clock needs the right voltage. The ram chips probably ok.

[@DIYRepairHour]

@@SkyDown15 yup. This needs PCB rebuild as all the important parts as a-OK. Probably not viable for Sorin to do it (time) but some enthusiast can do it for sure.

[@supergeekjay]

@@DIYRepairHour On a 5 year old laptop? It'd be more cost effective to buy a new one. Rebuilding the PCB is labour intensive.

[@jorgeferreira4452]

Try to fix the board with green mask to isolate the layers then fix pads. Then you can rebuid original cicuit.

[@intelpeople]

I think you can use here 1.2v universal step down module circuit.available in china wich is oprating on 12v-24v

[@graikas]

33:45 look at the very bottom, you are stress testing the on board gpu not the nVidia.

[@CAsCurryKitchen]

Why didn't he put one of those tiny buck converters in there fed off the 19.5V? He did that before.

[@MasterJediSean]

Hi Sorin, I noticed that when you were in GPU-Z you had the Intel GPU selected instead of Nvidia. If you still have the laptop try again but on the first page at the very bottom you can change the GPU, then try the render test. Cheers!

[@juanquerales6724]

Yo veo tus videos por que aparte que explicas de manera muy entendible, tu ingles lo entiendo a perfección. Gracias!

[@Bogdan.Benett]

I keep saying, electronic components work with smoke, as soon as the smoke comes out, they stop working 😂😂

[@c1q3]

you have soldered wire after coil. but what if you solder it before ?

[@gonedoneggonedoneg9863]

Sorin desktop GPUs with artefacts can be repaired??

[@lucabarbolovici4974]

Sorin, in gpu-z you were looking at the Intel gpu clock, not the nvidia Look botom right corner (Intel UHD 600)

[@gorky_vk]

It was but anyway is a fail as RAM (which UHD use as VRAM) was unstable enough to make artifacts, we can only imagine what result would be if he use real GPU to run test (kaboom probably :)). But fail or not it was stil a nice try and we learned something. Knowing what will not work is useful, he spend time to save us from wasting time.

[@lucabarbolovici4974]

@@gorky_vk might have worked if it was gddr5

[@maklogetrich2378]

​@@gorky_vkthe ram coil is mad hot I think because it supplying voltage to ram and gpu vram, and causing artifacts

[@asdfsdfsadfasdfsf]

amazing as usuall! but dont you think the power supply of the system RAM dont have enough power to supply to both RAM? isnt that will make the RAM power supply running constantly at it limit and might burn it too?

[@MikheilGhvinianidze]

Wouldn't it be possible to create simple small circuit, for it to still power from USB5V, and drop it to 1.2V or whatever, and place it inside there somewhere?

[@danielkodfly]

me encantan tus videos siempre los subtitulo, en verdad queria ver esa reparacion... cuantas capas son ahi en ese crater ¿en verdad no es posible repararlo recontruyendo pistas y mascara uv ? , obvio 2 o 3 capas pero si ya son 7 no le veo el cazo

[@مصطفىالقرشي-ك1ك]

It was fun and exiting even to watch closely!

[@uttamx2016]

Alternative power supply worked but its not permanent fix. its good job for learning

[@laboratorioassembler]

Very nice

[@mart43]

Solder a wire onto the pad and route it the shortest way outside the laptop case. This way, he can hook an external power supply to the wire when he wants to use the GPU.

[@Leon536d]

Which laptop do you recommend to buy

[@teknik53]

benzer bir olayda dc to dc conventer kullandım. oldukça küçüktü ve işe yaradı. müşteri geri gelmedi.

[@mtk3078]

the screen data cable being on top of that heatsink terrifies me

[@pouletfritesmayoboucher1585]

You should add external alim module fixed with hot glue loool. i love your post apocalyptic technic , robots will be happy !! Sorin you are the best :-)

[@tameratmekonnen1192]

satisfied here and engoyed the try!🤩👍

[@Iceking007]

Here we have a NIIIIIIICE laptop to repair! 😎😀

[@husamabou-shaar9740]

Gddr6 nominal voltage is 1.35v not 1.2v

[@fdgdfgdfgdfg3811]

the heatsink is copper maybe use it to transfer voltage.

[@techknewz]

This is what u call proper dodgey😂😂

[@khalifasolution]

nice one .I always do this on the phone but I use resistor to protector anything happen to other side .but not on laptop i have never try pc repair 🤣

[@trilhosdoalgarvebtt]

You don´t need screen, why don´t you build the USB Tester with a STM32 ST-Link programer!? just plug it to a usb port and it will emit a sound when you "have picture" :o))

[@Alchemetica]

WIth all the "dodgy" mentions I wonder if I have come across another wild diode watcher : )

[@yourfavoritecrafter]

I'm just waiting for the " Sjuuper dodgyyy " comment from Sorin hahaha

[@ferencszabo3504]

"a beautiful laptop", well we hadn't had this before 😊

[@martindowney7915]

Sorin don't listen to them, it's not dodgy it's called engineering brother, 😂

[@kevinhalili6399]

It needs a buck converter hook up on the main power rail

[@irasthewarrior]

It's difficult to find space for a buck converter.

[@gorky_vk]

@@irasthewarrior And to find strong enough converted. You need around 20-30A converter and space not just for one but also for some kind of cooling for it.

[@st.5693]

Secondary issue?

[@zodiacfml]

lol entertaining. surprised it somehow worked. i have some idea how much vram power is and you are going to need more than 10amps for the wire.

[@OMARENGG22]

Best way to avoid being sad customer is to buy good gaming laptop then disable CPU turbo boost and undervoltag gpu then be safe

[@gonedoneggonedoneg9863]

Razr needs new pcb design or higher quality material( copper layer)

[@yellouu_theree]

GDDR6 runs at 1.35v .. fault seems so easy to fix but in reality there is no way you would fit 20+ amp stepdown in that space. Nice try anyway, shame it's realisticy imposible to do it in that limited space

[@darrylhudsonhudson]

You have to do your best for the knowledge that you have and keep on using best tools to fix any laptop pc gaming FC-DLH

[@davidmonk7773]

The Gpu will work with a phase missing

[@dramaniamiri6741]

you are really great

[@καΝενας-δ6λ]

use an exteral strepdown converter 3A

[@incandescentwithrage]

3A is useless at 1.35v

[@καΝενας-δ6λ]

@@incandescentwithrage when it draw 2A and geting coils hot is fine dude

[@incandescentwithrage]

@@καΝενας-δ6λ Watch the video again. Power requirements go up under load. 3x1.35=4.05w. If total dissipation of vram was 4w there would be no need for cooling. It's much higher.

[@comez1967]

Nice video, but now we have another sentence...We have picture!!! That's crazy!!!! Jajaja

[@DrTeddyMMM]

That was awesome fun... But as you said, in the scheme of things, the length of the supply wire introduces huge losses. If the RAM power supply was in closer proximity to the VRAM location it would have been better, but the long term stress on the RAM power supply would undoubtedly prove to be fatal... My hat goes off to you, that was a great proof of concept.

[@vincentrigby5611]

SIMPLY AMAZING 👏 Best yet 😂

[@dmisi1]

i want to buy a T-shirt from Sorin with ``We Have Picture ! `` logo ,....

[@winlose3073]

why don't you use JLC PCB to create a lay out for only the DRMOSFETS Sorin and stick them on the board should work right? I mean it is such a waste for the cutomer to disable a good GPU!!!

[@perkulant4629]

But customers don’t want to pay for all the labour. So it is what it is.

[@David55436]

Why can't you use an external power supply like you used in your old works

[@JustInspiredKent]

I will always try to convince my customers not to buy a Razer laptop.

[@adaniel69]

gpu and vram voltage are variable, based on needs!!! frequency is variable, so the voltage!

[@5nowChain5]

😮 that speaker cable was re calibrated for industrial application. The solder joints look like sorins vape has THC in... 😂😂😂😂

[@brightmapoxy]

We have picture ❤

[@bctoner]

give it back to the customer

[@miroslavstevic2036]

Late Night with Sorin O'Brian. This is going beyond dodgyness, it's a comedy show ...

[@mahmoudajjan466]

BAD BOYS 🤣🤣🤣🤣🤣🤣🤣🤣🤣 I LOVE DODGY JOBS NO REALLY THANK YOU SO MUCH SIR❤

[@ChibiKeruchan]

This is why you don't use black on painting the Circuit board. this should be an International LAW. manufacturer should follow this universal policy.

[@LionardoPC]

new dodge level unlocked

[@geovani60624]

maybe if you downclock the memories it can last longer

[@radio-ged4626]

Dodgy-bodgy every time a winner. 🤣😂😆

[@aliemlek]

👌👌👌👌

[@ctecrwp]

Sorin....you are constantly humiliating the OEM's and educating the end user that tech can fix their laptop whatever the damage is.😅

[@BootedTech]

This was fixable! There wasn't that much burn and only a couple of traces missing. Laptops like this without their dedicated graphics are just paper weights.

[@retropcs88]

It looks like only the + track and maybe one ground. It totally looks fixable, but I'm not an expert so I don't know