Question GTX 1060 - Attempting Repair - Backlight but no display

[Mobbles]

hi

so picked up GPU repair, either I hate myself or I'm bored but thought I'd give it a shot.

Picked up a broken 1060 that the seller specified

"This is a Gigabyte 1060 3gb card. The card is sold AS IS. It powers on and boots to windows but has rather severe graphical glitches and will not install drivers. I do not know the reasoning behind the issue hence the cheap price. I WILL NOT ACCEPT RETURNS."

However, I'm having trouble getting it to display, however it produces a backlight and the signal is detected.

Motherboard I'm using is a Gigabyte B450M DSH3 with f67b BIOS version ( latest I believe )

My testing setup is currently an AMD 7 2700 and an RX570 as my primary card so I can get a display out and then the GTX 1060 in my Second PCIE slot.

So far I've tested all the rails for resistance and voltage, PEX, vcore, vmem 5V, 1.8v and then just the main voltages and they all seem fine, was concerned about vcore only being 0.7v but apparently it's normal on idle

https://repair.wiki/w/Nvidia_Pascal_(GTX_1000)_GPU_Diagnosing_Guide#Memory_problems

This is the guide I'm currently following to try my best to repair.

My next step was to get MODs / mats running to do a memory test, I can get this running however my log file is as follows for mods, and I can't get mats to runwithout the command running below first.

MODS start: Thu Feb  6 09:14:18 2025

Command Line : gputest.js -skip_rm_state_init -mfg

CPU
Foundry   : AuthenticAMD
Name      : AMD Ryzen 7 2700 Eight-Core Processor
Family    : 15
Model     : 8
Stepping  : 2

Version
MODS           : 367.56
OperatingSystem: Linux (x86_64)
Kernel         : 4.17.4-gentoo
KernelDriver   : 3.87
HostName       : tinylinux
Smbios version [0x303] is not supported

                 gpu 0  dev.sub 0.0        
                 ---------------------------
PCI Location   : 0x00, 0x05, 0x00, 0x00    
DID            : 0x1c02                    
Raw ECID       : 0x00000000004022400000004416c31591
Raw ECID (GHS) : 0x00000001644416c31400000009010080
ECID           : PH1R35-09_x02_y02          
Device Id      : GP106                      
Revision       : a1                        
NV Base        : 0xfb000000                
FB Base        : 0xb0000000                
IRQ            : 29                        
ERROR: No responses on codec 0!
Error 000000000723 : AzaliaController.InitExtDev Codec error detected
Error 000000000723 : Global.CheckForAndInitAzalia Codec error detected
Error 000000000723 : Global.InitPexAspm Codec error detected
Error 000000000723 : Global.PerGpuInitializeCallback Codec error detected
Error 000000000723 : Gpu.Initialize Codec error detected
Error 000000000723 : Global.PrintGpuInitError Codec error detected
Error 000000000723 : Global.InitializeGpuTests Codec error detected
ERROR: Unable to determine current VGA mode, ax=0x4f03
ERROR: Unable to set VESA mode 0x3, ax=0x4f02
Error 000000000237 : Global.EnableUserInterface unable to set mode
RmDestroyGpu failed

Error Code = 000000000723 (Codec error detected)

                                       
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MODS end  : Thu Feb  6 09:14:19 2025  [1.070 seconds (00:00:01.070 h:m:s)]

I've looked around with 723 codec issues, saw a russian thread that stated the guy seemed to get further display by heating up his memory chips, I assume to reseat the solder, I can do all of this as I have the equipment however its a last resort and I want to learn more about the error I have.

If anyone has any ideas please let me know, or more info I can provide, I'm trying to learn to repair so any info is great as I still look around and try different things

Not sure if installing windows would help at all either, not tried it at all.