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Please help - GPU not working after teardown

Hi all, I have a reasonable amount of experience building PC's, but this is the first time I've torn down a GPU for any reason. I took apart my blower style ASUS GTX 1080 Turbo so that I could clean the fan and heat-sink after three years of steady use. Here is my build: https://au.pcpartpicker.com/user/ryansmission/saved/2N3RGX

 

To do the tear down I followed a YouTube tutorial specific to this GPU (https://www.youtube.com/watch?v=0kjHlEibCkE), and the process seemed to go well. (Note that I only used this video to get the PCB apart from the cooler/shroud, not to disassemble the entire cooler and install the aftermarket option in the video.) An anti-static wrist strap was used.

 

When I put the GPU back into my PC, the system switched on and appeared to boot, but there was no image on the monitor. I switched the HDMI cable to another port, and then briefly got a picture. The GPU cooler then suddenly ramped up to 100% for no apparent reason so I powered down.

 

I tried again, and got no picture again, so I tried with a DVI-D cable, and had a picture for a while and then it dropped out. Sometimes the GPU fan spun up to 100% again, sometimes not.

 

I tried the GPU in a different PC and had similar problems.

 

I also noticed that on the GPU PCB near the 8 Pin connector a red LED was on some of the time, but not sure what it means - see pic for details. Also noticed after the red one had gone out that a white LED was on in the same area.

 

Two other things that I should note about my reassembly of the GPU that may or may not have played a part:

  1. The screw closest to the 8pin power connector didn't want to go all the way back in. After initially plugging the GPU back in and having the problems outlined above, I took everything apart again and realised that the fan power cable wasn't properly re-positioned, and so prevented the PCB from being able to properly re-seat, which in turn prevented the screw in the same region from reaching the screw hole properly. Perhaps this put extra pressure of some kind on the PCB or nearby components as I tried to get the screw to go back in? This seems a stretch though.

 

  1. Three of the thermal pads had remained on the GPU PCB instead of coming away like the rest with the cooler/cover. Initially I repositioned these as they were not entirely covering their respective modules. On tearing down for a second time I realised this meant that the pads were actually contacting with the GPU cold plate, so I put them back where they were originally located. Could this have caused overheating or similar perhaps? Doesn't seem explain why all these problems would persist after correction though.

 

So I have kinda buried my head in the sand for the last month or so pretending this isn't a problem, and now finally have built up the courage to come ask for help. Am terrified that somehow I've killed the card! In trying everything again today I am getting no intermittent picture, just a black screen. There is a white LED near the 8-pin shining (See pic), and the GPU fan is spinning as it normally would. I am testing with a CPU that has onboard graphics and can confirm that I have no issues when switching the cable over to the motherboard HDMI ports.

 

If anyone has any suggestions for troubleshooting this I would be eternally grateful. Definitely can't afford a new card right now!!

20200124_140929.jpg

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open the card again and check the thermal paste spread

did you re-paste?

Things I need help with: *new* What can Facebook do to me? Privacy Inquiries

Spoiler

 

 

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

 

Spoiler

 

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

 

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

 

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

 

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

 

Personal Blacklisted Companies:

Spoiler

Acer: shit tier quality products, shit tier customer service thus far, they "tried" to solve my issue but they arent really doing anything but delaying and delaying. (on-going case since July)

Gigabyte: horrible customer service (gigabyte had literally 0 customer service, asked me to go to retailer with NO WAY to email them about a question) but at least they fixed my shit in ONE MONTH (would probably take me 1 hour to fix if they let me email them)

XiaoMi Phones: built like a tank but the software is buggy as all hell

Seagate HDD: had too many dead seagate drives

Kingston SSD: 300V controller swap thingy

Razer (except their mouse)

 

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

 

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1 minute ago, Moonzy said:

open the card again and check the thermal paste spread

did you re-paste?

I did re-paste - just used what I had on hand - which is Arctic Silver 5

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Just now, TheBeast2211 said:

which is Arctic Silver 5

check the spread on the die

Things I need help with: *new* What can Facebook do to me? Privacy Inquiries

Spoiler

 

 

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

 

Spoiler

 

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

 

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

 

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

 

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

 

Personal Blacklisted Companies:

Spoiler

Acer: shit tier quality products, shit tier customer service thus far, they "tried" to solve my issue but they arent really doing anything but delaying and delaying. (on-going case since July)

Gigabyte: horrible customer service (gigabyte had literally 0 customer service, asked me to go to retailer with NO WAY to email them about a question) but at least they fixed my shit in ONE MONTH (would probably take me 1 hour to fix if they let me email them)

XiaoMi Phones: built like a tank but the software is buggy as all hell

Seagate HDD: had too many dead seagate drives

Kingston SSD: 300V controller swap thingy

Razer (except their mouse)

 

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

 

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So I have this exact card, I did a teardown as well, but just used the stock cooler after applying new thermal pads an paste. Its my understanding that the red light is indicating a power issue. Have you tried using a different pcie  cable and or port on you psu? Perhaps putting the stock blower back on may resolve this issue. After cleaning, even with stock cooler I saw significantly better temps. Don't give up hope my guy. I have an rtx3080 fe sitting on my desk that doesn't work, and its brand new. 

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1 minute ago, Cosmic Origin said:

 I have an rtx3080 fe sitting on my desk that doesn't work, and its brand new. 

That's terrible.....

- If it ain't broken, don't fix it! 

- Your post codes and beep codes in the drop down below.

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11 minutes ago, Cosmic Origin said:

So I have this exact card, I did a teardown as well, but just used the stock cooler after applying new thermal pads an paste. Its my understanding that the red light is indicating a power issue. Have you tried using a different pcie  cable and or port on you psu? Perhaps putting the stock blower back on may resolve this issue. After cleaning, even with stock cooler I saw significantly better temps. Don't give up hope my guy. I have an rtx3080 fe sitting on my desk that doesn't work, and its brand new. 

I didn't actually swap out the cooler, just cleaned out dust from fan blades and heat sink, then reassembled.

 

Also using a different power supply today, so can rule out any issues relating to that.

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Just now, TheBeast2211 said:

I didn't actually swap out the cooler, just cleaned out dust from fan blades and heat sink, then reassembled

And F for your 3080 btw :(

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