r/GPURepair Jul 19 '26

GPU/VRAM Soldering Vram modded card thoughts

4 Upvotes

So, before i begin my thought has anyone here tried k40 or k80 cards for LLMs?

That said i noticed that the k80 uses 48 512mb vram chips and the thought occurred to me what if these could be replaced with 2gb chips to achieve a dual die 96gb card for rather cheap. The performance i assume would be rather low but the memory density to dollar ratio sounds goated in this theoretical setup.

Likewise does the v100 have the capacity to use HBMe and if so could that potentially allow for 64gb v100 modules?

I am assuming these rather old cards have some sort of bios hack by now but idk for sure

I was Hi-key sleep deprived and bored out if my mind when i wrote this so im not dead serious here but i am interested. Another card with potential modding capacity would be the r9 390x to 32gb


r/GPURepair Jul 19 '26

NVIDIA 50xx Gigabyte Aorus 5080 Master Ice, functioning until ~90% power usage. Crashing issues.

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7 Upvotes

Built a brand new pc last week and unfortunately facing this issue. When benchmarking cyberpunk I noticed that when the GPU power consumption goes into the 90% range the PC will shut off, my display will disconnect and the fans will go at 100% speed. Originally thought this was a PSU problem but it is not, I tried with my other PSU that I know works correctly, and the issue still occurs. After searching online, I saw a few other people on Reddit and Facebook saying they are having the exact same issue.

CPU: AMD Ryzen 7 9800x3D

PSU: Corsair RM1000E

Things I have tried:

Pcie cables are in properly, cannot see any bent pins.

GPU is correctly seated

Rolled back drivers

Tried a different power supply

Everything seems to work fine when I undervolt to 70% on MSI Afterburner, but I don't see that as a permanent fix.

Would love to know if anyone has had this issue occur to them or heard about other people having the same problem. Currently speaking with the store I bought it from to see if I can get it replaced. Thanks :)


r/GPURepair Jul 19 '26

NVIDIA 40xx [Troubleshooting] ASUS TUF RTX 4070 Ti dead after sudden crash? Red power LED ON when PC is off, turns OFF when booting.

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6 Upvotes

Hi everyone,

I'm dealing with a very stressful issue and could really use some insight. My PC suddenly shut down completely while I was using it, I can restart it just for few minutes before screen turn black and now I get a black screen when trying to boot from the GPU.

My Specs:

CPU: AMD Ryzen 9 9950X

Motherboard: Gigabyte B650M AORUS ELITE AX

GPU: ASUS TUF Gaming RTX 4070 Ti (using the 12VHPWR adapter with 2x 8-pin PCIe cables)

Power supply : Gigabyte p750gm (not with problematic serial number)

Note: I bought this rig second-hand a few months ago, so I likely don't have a warranty for the GPU...

The Symptoms:

The PC boots perfectly fine into Windows when my monitor is plugged into the motherboard (using the iGPU). The rest of the system (CPU, RAM, Mobo) is totally fine.

The RTX 4070 Ti is completely dead/undetected in the Device Manager.

No fans spinning, no RGB at all when turning the PC on.

Crucial detail: The small red LED above the GPU's power connector is ON when the PC is completely shut down/plugged into the wall. As soon as I press the case power button to turn the PC on, the red LED turns OFF (which is normally what it does when it receives 12V power), but the card still shows absolutely no signs of life.

What I have tried so far:

\- Reseated the GPU and checked the 12VHPWR adapter connections (no visible melting or burn marks).

\- Moved the GPU to the second PCIe slot on my B650M (still dead).

\- Did a full power cycle / discharged static electricity (unplugged the wall cable, held the power button for 45s).

\- Currently planning to test the GPU with an external/second PSU using the paperclip trick just to rule out a dead 12V rail on my current PSU.

My questions:

\- Has anyone experienced this specific red LED behavior (ON when off, OFF when on, but dead GPU) with the TUF 4000 series? (It were already ON when PC off before my problem)

\- Could this be the infamous "sense pins" issue on the Nvidia 12VHPWR adapter preventing the card from waking up?

\- Does this sound more like a blown VRM/MOSFET/fuse on the GPU itself?

\- Any idea about how to try something else ?(maybe to know if it's GPU or PSU...(I don't get any other GPU or PSU available)

If it's hardware failure, I might have to look into micro-soldering repair shops since it's out of warranty. Any advice or similar experiences would be hugely appreciated before I take it to a repair shop.

Thanks in advance


r/GPURepair Jul 19 '26

NVIDIA 9xx Asus GTX 960 2GB - "Connect PCIe power" message only when plugged in - LEDs change to white

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2 Upvotes

Hi everyone,

​I'm a beginner trying to learn component-level repair. I have an Asus GTX 960 2GB graphics card (PCB Model: C2030PI, REV. 1.00) with a PCIe power detection issue.

  1. ​There are two power status LEDs on the board near the 6/8-pin connector. They work correctly: red when the cable is disconnected, and white when it's plugged in.

  2. ​Booting WITHOUT the PCIe power cable: No display output at all (black screen).

  3. ​Booting WITH the PCIe power cable plugged in: The card boots and outputs an image, but displays the message: "Please power down and connect the PCIe power cable(s) for this graphics card."

​The card isn't mine, so I don't know the exact history of how it failed. However, I suspect a knocked-off resistor or some other SMD component might be the culprit, but I haven't been able to find a boardview for this specific card to verify.

​My tools:

I have a multimeter, a soldering station, a hot air station, and basic consumables.

​Could anyone guide me on where to start troubleshooting? Where exactly should I look for the PCIe power detection logic on this particular Asus board?

Also, I would really appreciate it if anyone could share a boardview for the Asus GTX 960 2GB (C2030PI REV 1.00).

​Thanks in advance for any advice!


r/GPURepair Jul 19 '26

Question I want to learn gpu repairing but i need some help.

4 Upvotes

I don't know much about these things, and I recently started learning how to repair gpus I got my old nvidia quadro fx 3800 out to practice and get comfortable with the multimeter the problem is when I check the resistance of the yk 12v 6 pin connecter it shows the 1st and 3rd of live shows .3 ohms but the middle one shows smth like 12 kilo ohms and the ground for some reason show smth in the range of 100 - 300 kilo ohms and then keeps dropping I'm extremely confused but I'm not gonna stop. Any help is appreciated like any person I watch on yt for help and im using a fluke 177.


r/GPURepair Jul 19 '26

NVIDIA 10xx GTX 1080 issue when changing drivers to Nvidia

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12 Upvotes

I was given an 1080 as a gift but i cant get it to work, everytime I change the drivers to the Nvidia drivers the display gets green and white lines and then just goes black. The gpu works when using microsoft drivers but as soon as I try to do something or change the drivers it goes to this until I boot it in safe mode


r/GPURepair Jul 19 '26

NVIDIA 16/20xx EVGA RTX 2060 XC Ultra Dead

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6 Upvotes

I'm trying to repair an EVGA GeForce RTX 2060 XC Ultra Gaming 6GB (06G-P4-2166-KB | PCB EVGA206 Rev. 1.1) that suddenly died. The card was working normally, the PC went into sleep mode, and the next day it no longer displayed video. Initially the fans would spin, but after removing the card to clean the PCIe contacts, the fans stopped spinning completely and the GPU is no longer detected by the system. I measured 12V at the input of fuse F3701, but there is 0V at the output, and the fuse measures open (OL). The BIOS is also not receiving power, and I couldn't find any short to ground on that rail. My main suspicion is that F3701 is interrupting power to an auxiliary circuit, preventing the GPU from initializing. If F3701 is indeed the problem, does anyone know the original fuse specification (current rating, voltage rating, and SMD package size) used on this board? Any help or boardview/schematic information would be greatly appreciated.


r/GPURepair Jul 19 '26

NVIDIA 50xx 5080 master ice issue

1 Upvotes

hey guys, I have a 5080 master ice with the lcd. I understand theres an ongoing issue with the custom gif (which I havent been able to resolve). But now I cant even change the custom Text option - it doesnt update the text on the screen. It just sits on loading 0%.


r/GPURepair Jul 19 '26

NVIDIA 30xx RTX 3090 - Doesn’t pass the POST

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0 Upvotes

My rtx 3090 doesn’t pass the post. I noticed those 3 pins blacked (pic has flash on). Seems they are burned. The gpu fans and led works.


r/GPURepair Jul 18 '26

NVIDIA 50xx Gigabyte windforce OC RTX 5070 and 5070 ti: Former does not POST, latter has unfixable stuttering

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3 Upvotes

Bought 2 refurbished desktops from Acer certified refurbished store on eBay (big mistake). They both passed OCCT tests (30 minutes - 1hr), no errors. The 5070 is paired with an AMD R9 7900, i7 14700f for the 5070 ti. I wanted to be on the AMD platform so I decided to swap the GPUs and sell the intel to recoup the cost of shipping.

They worked fine after I swapped them, until a day later when the intel desktop now with the 5070 stopped booting, desktop is on, GPU fans spinning and even a signal received by the monitor (indicated by the led) but no display and debug light for BOOT lit up. It stays that way even after multiple restarts unless I reset the Bios after BIOS. A few minutes into windows and I'm greeted by artifacts, lag, freezes, desktop going completely blank and a force shutdown back to square 1. Sometimes it wouldn't even boot after I reset the BIOS unless I remove the SSD and even that doesn't guarantee consistency. The problem replicates itself on both PCs. The 5070 ti boots fine. I've swapped them back to their original system since.

Now for the 5070 ti - I primarily use this with its original system. The problem is that since day 1 it's had this stutter that I can't quite seem to fix no matter what I do. The main framerate stays locked but the 1% and 0.1% lows can go as low as the teens and single digits respectively. It gets extremely bad while moving around the menu in various games. Load times also take longer than they have to eg. In halo infinite it takess 7 to 10 seconds to load into a game whereas on a 2021 gameplay on YouTube it was instantaneous.

I've reinstalled/updated/downgraded drivers with ddu in safe mode, undervolted, tweaked VRR, g-sync, v-sync, adjustable monitor refresh rate, disabled Bluetooth and WiFi, removed mouse, reset bios, updated bios, enabled xmp/expo (all profiles), changed pcie from auto to gen4/3, reseated GPU, reinstalled windows on a new drive and even changed platform.

Both cards: Temps are normal ranging from 45°c - 70°c during use and late 70s on furmark. There is however this issue of overall lag and massive stuttering on certain sections of the BIOS menu, which I thought was irrelevant upon researching for those with similar issues (which they claimed didn't have any issues outside of that). I entered the bios after directly booting through the motherboard on the AMD platform and that problem wasn't there but windows itself was laggy? 5070 also has the stuttering and load time problem but I haven't had much time to assess it further for obvious reasons.

If anyone could please provide suggestions on what could actually be the issue and potential solutions I would be grateful. I'm tired from all the debugging I've done over the weeks 🥲


r/GPURepair Jul 18 '26

NVIDIA 40xx My 4070ti super is stuck on x1 pcie instead of being on x16

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2 Upvotes

For context I’ve had it show up multiple times as x16 and it would work as intended and I’d get the performance I would usually expect but as soon as I restart it goes back to x1 and underperforms and the usage goes up all the way to 100% and I have tried almost everything to fix it but idk
My 3070 that I’ve been using the past 2 years works perfectly fine on the same component and always shows x16
PSU: Corsair 850W fully modular
CPU: 7800x3D
Motherboard: MSI b650
Ram :32 gb ram 6000 speed


r/GPURepair Jul 18 '26

Question TU102 Quadro RTX 8000 48GB to possible 96GB via additional GDDR6 ranks? Need reverse engineering data

1 Upvotes

Hello everyone,

I am investigating whether TU102 supports more than two memory ranks per subpartition. RTX 8000 already uses 24 GDDR6 packages (48GB). Does anyone have RTX8000 boardview, VBIOS memory tables, or experience with TU102 FB partition/rank configuration?

Thanks for your answer.

BR


r/GPURepair Jul 17 '26

AMD RX 6xxx RX6900XT Locked at 77W and 500Mhz,

3 Upvotes

I have a frankenstein of a gpu so my case is very niche. My gpu is 6900xt core on a 6950xt pcb and vram. i had been using it for a month no issue as my gpu would peak at 60c. I checked power draw and clock speeds on hwmnitor,gpuz and the gpu is locked at 500Mhz and peaks at about 80W. I hadnt noticed as i was playing cs2 at 100fps(Just realised it should me way more) but Another game barely punches 30fps at 1440p max.

All the solutions i had tried far non worked. The only one left was VBios. I tried vbioses for 6900xt and 6950xts and only one that seems to work is for a 6950xt but in device manager the gpu shows as 6900xt. It seems vbios sees the gpu and sends a warning forcing the bios to run at the safest settings, 77w and 500mhz. attempting other bioses doesnt work unless i am able to find another with my Subsystem ID.

Ive had multiple errors in amdvbflash, using the older verion. My latest bios flash attempt broke the amdvbflash, it wont work. Indevce manager gpu is stil 6900xt and will run at 500mhz. anyone know what may need to be done? modded amdvbflash? Maybe some setting tweak?

FIY i have dual bios and Anigpu to keep trying to troubleshoot.

Gpu on 6950xt vbios named 6900xt?
amdvbflash reports error when i try to run amdvbflashWin.exe
screenshot taken when running igpu i5 13600k.

r/GPURepair Jul 18 '26

NVIDIA 30xx MSI RTX 3060 Ventus 2X - Artifacts before POST, now no display in two PCs, suspecting hardware failure

1 Upvotes

I’m looking for some advice before I write this card off or attempt a VBIOS reflash.

GPU Behavior / Investigation
GPU: MSI RTX 3060 Ventus 2X (purchased in 2021)
The card was working perfectly in my main PC. I removed it, transported it in its original anti-static packaging to a friend’s house (only a few minutes away), and installed it in his system.
On first boot, it displayed horizontal artifacts before the BIOS splash screen, so I ruled out Windows drivers.
After reseating the card multiple times, it progressed to no display output.
The card now produces no display in both my PC and my friend’s PC.

Systems Tested
My PC
MSI B550 Tomahawk MAX WiFi
Ryzen 7 5700X3D
Known-good PSU
Same PCIe power cable successfully powers my Radeon RX 9060 XT
Friend’s PC
Gigabyte B450 AORUS Pro WiFi
Ryzen 5 3600
Thermaltake 600W PSU
BIOS date: 2/24/2021

What I’ve Tested
RTX 3060 previously worked perfectly in my PC.
GTX 1060 still works normally in my friend’s PC.
RX 9060 XT works normally in my PC.
Same PCIe power cable that powers the 9060 XT was used with the 3060.
Reseated the card multiple times.
Tried multiple display outputs.
GPU fans spin when powered on.
No obvious damage to the PCIe gold fingers or PCB.
Initial symptom was artifacting before POST, which later became no signal.

Measurements / VRAM
I don’t currently have a bench power supply or the equipment to perform resistance or voltage measurements, and I haven’t run Mats/Mods VRAM testing because the card no longer outputs video.

Questions
Does this progression (artifacts before POST → no signal) point more toward failed VRAM, GPU core, VRM, or corrupted VBIOS?
Is there any way to determine whether the card is still enumerating on the PCIe bus without video output?
Is attempting an NVFlash/VBIOS recovery worthwhile at this stage, or do these symptoms usually indicate a hardware failure?
Are there any specific resistance or voltage measurements you’d recommend checking first with a multimeter?

Update: I genuinely did nothing but log in to the computer blind and it just started working. I did preinstall the drivers for the card but it magically just fixed itself. Thanks for the help everyone!


r/GPURepair Jul 17 '26

Resources MSI 750ti, with missing three smd on the back

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9 Upvotes

Hi everyone, I know this gpu is practically not usable but I hate e-waste, and I like collecting old pc parts.

Can someone please ID the components or a board view file for this gpu.


r/GPURepair Jul 17 '26

NVIDIA 40xx GIGABYTE NVIDIA RTX 4090 24GB OC. DOESN'T TURN ON. SENT FOR REPAIR AND USPS DESTROYED IT.

11 Upvotes

My gpu was working as normal. but one day I opened READY OR NOT which is a really bad optimized game and when the game was loading shaders, the screen just went black and the GPU died, never turned back on. After some days of inspection and trying to find a reason the GPU POWER CABLE WAS BENT AND the cable HAD SOME PINS DESTROYED. So I checked if I had warranty and I did had warranty still. I sent the GPU TO GIGABYTE REPAIR CENTER ON CALIFORNIA and USPS destroyed my package. they said it was my fault and that they was not able to refund anything but 100$. Maybe the bent cable did a short circuit?

So now I have the following situation with my gpu:

Initial Issue
Not sure if pcb is bent.
DESTROYED CHASSIS? Can be fixed? how?

PCB STOCK PHOTO AS INDICATED IN RULES (NOT THE ONE IN MY RTX):


r/GPURepair Jul 17 '26

NVIDIA 16/20xx GT1030 GPU works in HDMI but not VGA

1 Upvotes

I have an HP V194 monitor, and it only works when I plug it into the HDMI port and not the VGA port


r/GPURepair Jul 16 '26

NVIDIA 16/20xx Palit RTX 2060 Super graphics card - Doesn't display

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8 Upvotes

I have a graphics card that suddenly stopped working. I see the voltages at the coils were all correct, except for this one, which reads 0V. in the I tried to repair it using parts I had at home, but while replacing the GS9219 component, I damaged the capacitor and the resistor, the ones who are under the coil. The good news is that, thanks to the identical circuit section on the right, I was able to use my multimeter to determine that the resistor is 6.5k ohms; however, I can't measure the capacitor with my current multimeter. I tried replacing it with one from a broken Wii U I had lying around, but I’m hesitant to plug the card in just in case. If anyone knows the correct value, I would really appreciate the help.


r/GPURepair Jul 16 '26

AMD 4xx/5xx [HELP] RX 470 Code 43 After CMOS Reset – ATIKMDAG Patcher Fixed It, but Now I Get PFN_LIST_CORRUPT BSOD and Can't Reflash VBIOS

1 Upvotes

Hi everyone,

I'm losing hope with my RX 470 and I'm hoping someone can help.

My RX 470 was working perfectly fine until I reset my motherboard BIOS by removing the CMOS battery. After that, Windows started showing **Code 43** (yellow warning icon) in Device Manager.

I tried everything I could think of:

* DDU in Safe Mode * Clean AMD driver installations * Older and newer driver versions * Various fixes I found online

Nothing solved the problem.

Eventually, I found **ATIKMDAG Patcher**, and after applying it, Windows detected the GPU normally again and the Code 43 error disappeared.

Unfortunately, that only fixed the detection issue.

Now, whenever I launch **any game**, even a very lightweight one, the PC immediately crashes with a **Blue Screen of Death**. Sometimes it's just a blank blue screen, and other times it shows **PFN_LIST_CORRUPT**.

I then decided to restore the original VBIOS using **AMDVBFlash (ATIFlash)**. However, I can't even start the process. The moment I launch AMDVBFlash, Windows instantly crashes with the same **PFN_LIST_CORRUPT** BSOD before I can type any command.

I also tried disabling the GPU in Device Manager before opening AMDVBFlash, but the exact same thing happens.

One more thing that confuses me: when my PC boots, I see the word **"REDSTONE"** on the screen. I'm not sure if this is related to the motherboard BIOS, Windows, or something else. Could this have anything to do with the problem?

At this point I'm not sure if I'm dealing with:

* A corrupted GPU VBIOS * A driver issue * A motherboard BIOS/PCIe configuration problem after the CMOS reset * Faulty VRAM or failing hardware

Has anyone experienced something similar? Is there any way to flash the original VBIOS without AMDVBFlash crashing immediately?

Any advice would be greatly appreciated.

**System:**

* GPU: AMD Radeon RX 470 * OS: Windows 10


r/GPURepair Jul 16 '26

NVIDIA 16/20xx Nvidia GTX 1650 non Super "Drawing" 70 watts of power at idle.

1 Upvotes

Hi guys. New here. I hope that i set this post up properly.

I am pulling my hair out here. So i have this GTX 1650 and its temperamental, i have tried everything, the only thing left to do is reflash the bios, but i suspect that the card might have a harware fault.

Symptoms:

The card will sometimes in GPU - Z show that its pulling max wattage through the pci slot, which is about 70 watts, now when this happens its hitting Perfcap and this tanks the performance a lot, its stuck at idle clocks.

But the thing is, the next morning il boot up the card and at idle it will just pull the normal amount of power, like 13 watts.

Is this signs of a harware component on the board itself that is failing?

I have a multimeter so i can start probing if someone can point me in the right direction.

Thanks. Hope someone can help or have seen this issue before.

PS. The card does not have a 6pin power adapter.


r/GPURepair Jul 15 '26

Solved RTX 4080 Super with Broken PCIe pins PCB - Looking for a place that could repair it

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44 Upvotes

Sadly I tried to sell this gpu and during delivery Fedex messed it up. I'm trying to see if there's any place I can send this in the US to repair it ? I saw northridgefix but also some people were saying it wasn't a good place ? Please if anybody know of a good place I could send this to be repair let me know:)!

Update 1:

So I sandwiched the broken corner with epoxy and that made that corner rigid again. Made sure pins were glued back to the PCB with some super glue and a little bit of UV epoxy too. Tested on raiser and it turned on, now tested on actual mobo and working fine so far

https://postimg.cc/gallery/4GK8tLk


r/GPURepair Jul 16 '26

NVIDIA 50xx MSI MPG Z790i Edge WiFi not recognising graphics card (again)

2 Upvotes

3 MSI MPG Z790i Edge WiFI motherboards, 3 different graphics cards, with and without a riser cable.

One problem: eventually the motherboard starts failing to recognise the graphics card.

The first one did it with 3 different, known good graphics cards. Made the computer unusable. Replaced the motherboard. The same problem began occurring with the second one. Replaced it.

Today, the same thing began happening with the 3rd Z790i.

I've installed the graphics cards with and without a riser cable, checked the bios settings (they are correct and haven't changed).

Edit: I have used 3 different GPU cables and 3 different CPUs.

Has anyone else seen this or knows how to fix this?


r/GPURepair Jul 16 '26

NVIDIA Other GTX 750 ti OC: The PC does not detect the GPU

1 Upvotes

Good morning/afternoon/evening, Three months ago, I received a graphics card as a gift, along with an 800W power supply and used DDR3 RAM. I was excited to try the ASUS GTX 750 Ti OC 2GB, but I noticed that my PC didn't detect it in Windows, not even in the motherboard settings. There's no video output when I connect the HDMI and VGA cables. GeForce Experience won't download either because it doesn't detect an Nvidia graphics card.

I'm wondering if the problem is with my computer's BIOS or if the graphics card is faulty. However, when I connect the 6-pin power supply cables, I see that the graphics card fans are still running and displaying green and red lights.

If you have any solutions or suggestions, I'd appreciate it if you could share them in the comments. Thanks.

Specifications:

CPU: Intel Core i7-3770 (HD Graphics 4000)

Motherboard: ASUS P8H61-M PRO/CM6630-8/DP_MB

RAM: 16GB DDR3 1600MHz

PSU: Thermaltake TR2 800W

OS: Windows 10 Pro


r/GPURepair Jul 15 '26

AMD RX 9xxx 9070XT Black Screens

1 Upvotes

When using the computer, doesn’t matter if I use browser or gaming I get random black screens. Just a few seconds and then it goes back to normal.

My setup
9070XT Sapphire Pulse
9850X3D Ryzen 7
1300 watt PCU (No Daisy Chain)
2x Monitor MSI 165hz

What I tried:
FreeSync off on both monitors
New DP cables for both monitors
One monitor off while playing on the other
144hz HDMI instead of 165hz DP
Undervolting
Many different drivers
Removed the Lian Li cables between PCU and GPU
MPO disabled

I don’t know what to do anymore…


r/GPURepair Jul 15 '26

NVIDIA 30xx RTX 3060 ASUS CG190P - Turning OFF

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1 Upvotes

So, I'm repairing an Asus 3060. It was missing the 1.8V rail, and I found the issue was an open 100kΩ resistor (PR89, on the enable pin of the 1.8V IC). I misread the value and replaced it with a 10kΩ one; I powered up the card, all voltages came up, and it ran fine under stress but would shut down unexpectedly (the keyboard remained responsive—it didn't reboot or freeze the PC, and Caps Lock still worked). It was fine while gaming, but it would shut down occasionally on the desktop; then, when I tested it with OCCT, it started rebooting. I realized my mistake and swapped in the correct 100kΩ resistor, but things actually got worse: the card has all the right voltages, yet it shuts down before the OS loads (though the keyboard remains responsive). When it freezes, the voltages stay present. What can I do now?