r/GPURepair

RTX 5070 ti Zotac gaming

RTX 5070 ti Zotac gaming

Hi everyone, I wanted to ask if anyone knows why the game crashes every time I launch it. It always shows this error and won't let me play any games. I wanted to know if this is a graphics card issue or if I need to configure something in the BIOS—I’ve already updated the BIOS to the latest version.

u/NovaCrT — 4 days ago

Gigabyte RTX 3090 24GB – Looking for a VRAM disable mod

Hi everyone!

I'm working on repairing a Gigabyte RTX 3090 24GB and I'm looking for information about a VRAM disable mod.

Does anyone have a guide, PCB diagrams, resistor strap configurations, or experience disabling faulty VRAM channels on this card?

I'd like to know if it's possible to disable part of the VRAM to get the GPU working with reduced memory capacity instead of replacing the faulty chips.

If anyone has successfully done this modification on a Gigabyte RTX 3090, I'd really appreciate any information or photos.

Thanks in advance!

reddit.com
u/Charming-Wasabi3588 — 4 days ago
▲ 3 r/GPURepair+1 crossposts

XFX RX580 - Error 43 gone! BIOSless GPU!

Hi guys! I made something pretty unusual, and I wanted to share the story with you!

Last week, something terrible happened to my PC. A 12V wire touched a 5V wire, and unfortunately, my PSUs didn't have the protection needed to prevent a disaster. I lost my Gigabyte X99P-SLI motherboard, a 500GB SSD, and two of my XFX RX 580s...

I was devastated. I'd bought these components just a week or two earlier, and electronics prices in my country had gone through the roof. Building a local AI machine with four used XFX RX 580s and that motherboard was pretty much my only affordable option.

But honestly, it was an amazing machine for the price! I was getting around 30–35 tokens/s during generation and 250–350 tokens/s during prompt processing, even with at least 160K context, running Ornith 1.5 35B, a Qwen3.6-35B-A3B variant.

Everything was going perfectly until those two wires fell in love... and their love was so hot that they blew up half my PC. 💀

During my desperate attempts to recover the hardware, I discovered that both GPUs were actually healthy, except for one thing: the BIOS chips on both cards were dead! (Error 43 in device manager, no flash utility can flash bios to GPU! even ch341a USB spi programmer cant read / write from / to chip!)

I tried replacing the chips, but I made a mistake during the process and damaged some PCB traces. So, fixing them the traditional way wasn't going to be easy.

Then, after countless attempts and a lot of frustration, something unexpected happened.

Somehow, Claude, ChatGPT, and I (although I actually wrote zero lines of code myself!) managed to build something that I think is genuinely useful.

It's a UEFI application that essentially emulates the SPI flash chip, initializes the GPU's memory controller, and loads the VBIOS into the card.

And the crazy part?

My RX 580s now work even with their physical BIOS chips completely removed from the boards! I actually desoldered them!

How does it work?

You only need the VBIOS files for your graphics cards. That's it!

  • Know which VBIOS belongs to your card? Just provide that one BIOS file for each card.
  • Not sure which VBIOS is the correct one? You can provide multiple BIOS files, and the loader can try to find the appropriate one.

No physical BIOS chip is required on the GPU. The application loads the BIOS directly into the card during startup.

I've also made a GUI version to make things easier:

GitHub repository: https://github.com/aryan-nikzad/rx580_vbios_loader_GUI

I never expected to turn a hardware disaster into a software project, but here we are!

Maybe this project will help someone else recover a GPU with a dead BIOS chip instead of throwing it away.

What do you guys think? Has anyone tried anything similar with Polaris GPUs?

(I’ve used “VBIOS” and “chip dump” interchangeably here, even though they aren’t necessarily the same thing. Also, ChatGPT helped rewrite this post because English isn’t my native language. Anyway, thank you for taking the time to read it!)

u/cool_n_creative — 6 days ago

110c Hotspots when opening games

I've been having this issue with my 4080 super. This has started after about 2 years of ownership. Whenever I launch any games my gpu fans pretty much instantly go to 100%. After checking temps with GPU-Z, under load, my memory temps are consistantly around 60c with 110c Hotspots.

I had suspicion that the card needed to be repasted. I opened the card up and repasted it. Started a game back up and am still having the same issue. Any suggestions?

Card model number: RTX 4080: AD103

u/gavinrotty — 13 days ago

Free GPU repair 2.0! I'm back!

This is my same post from a month or so ago, from my last post 3 people sent their cards in 1 came in fine and was returned (RTX 3090) and I have a 1080 ti and 1080. The 1080 is diagnosed and the VRAM module I needed to replace to fix it just arrived today, the 1080 ti is getting reballed (hoping the core isnt toast). I figure by the time these are done and in the mail back to their owners I might have a few more people lined up!

I'm learning microsoldering and need practice/experience before I could start charging for repairs. I figured instead of having to buy broken ones on Ebay and deal with scammers I'd offer people free repairs. I get to learn for free and the other person gets a free repair.

I included a picture of my bench as some kind of (hopefully) proof that I'm not trying to scam. All I would ask is that you cover the shipping both ways and any components I'd need to replace (if any). I already own a 5070 ti, 6600 XT, and GTX 970(960?), so I have no need for the cards and I'd rather not deal with Ebay selling for the same reason I don't want to buy from their.

Ideally, I would just like to be able to charge people for repairs eventually so I can avoid dealing with the headaches of Ebay. I get this probably sounds sketchy but I figured the worse that will happen is no one will be interested. Thanks to anyone who read this far! :D Feel free to ask any questions!

Contact me on here or if you prefer my discord is: kirklandqq

Im super bad about checking discord, so you'll get a quicker response through reddit. But I've come to understand some people really prefer discord :D

Oh yeah the name on the 2nd photo was because someone had asked me to provide a different angle, I assume because AI can't fake different angles to prove I'm not scamming? Anyway, thats why someone else's name is written below mine in picture 2.

u/Pancakes1741 — 13 days ago