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BasedKnight

P770DM-G 980M Won't Boot

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I recently purchased a replacement 980M (Clevo model) for my P770DM-G after the original died, however, after installing the card the laptop doesn't boot. I only get a black screen, and after a couple minutes the fans spin to max before shutting down, which is the same thing that happens when I try to boot it without any gpu at all. I've tried the reset procedure, unplugging, removing battery, and removing CMOS, to no avail. It does beep before shutting down (I counted 22 times exactly). Anyone have any insight as to what the problem is?

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9 hours ago, BasedKnight said:

I recently purchased a replacement 980M (Clevo model) for my P770DM-G after the original died, however, after installing the card the laptop doesn't boot. I only get a black screen, and after a couple minutes the fans spin to max before shutting down, which is the same thing that happens when I try to boot it without any gpu at all. I've tried the reset procedure, unplugging, removing battery, and removing CMOS, to no avail. It does beep before shutting down (I counted 22 times exactly). Anyone have any insight as to what the problem is?

Hi!

I think in your case it's a hardware problem. I think when your previous graphic card was died, then at the same time some element on the motherboard died at the same time, maybe some kind of power element to the graphic card.

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The motherboard should be ok. I since managed to get the laptop to boot to Windows but there is no video. I've been attempting to blind flash a stock 980M vBIOS using these instructions, 

, but with no luck. It fails everytime. Since I have no video, I enabled logging through nvflash and the error I get everytime in the log file is 'no nvidia display adapter detected'. I also get 2 beeps after Step 9, but according to the instructions it should only beep once when the flash is successful. It seems that the card and the laptop itself are both working there is just some incompatibility some where.

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10 minutes ago, BasedKnight said:

The motherboard should be ok. I since managed to get the laptop to boot to Windows but there is no video. I've been attempting to blind flash a stock 980M vBIOS using these instructions, 

, but with no luck. It fails everytime. Since I have no video, I enabled logging through nvflash and the error I get everytime in the log file is 'no nvidia display adapter detected'. I also get 2 beeps after Step 9, but according to the instructions it should only beep once when the flash is successful. It seems that the card and the laptop itself are both working there is just some incompatibility some where.

 

The motherboard itself is working, yes, but I mean that maybe some element on the motherboard is faulty, which giving the supply voltage only to the graphics card. Perhaps that’s why the new video card is not detected by the system, because it does not receive the necessary supply voltage.

Edited by Klem

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I suppose that is possible. The original card died due to MOSFET failure. One failed, so I removed it and the card ran on the remaining 2 for awhile (just had to reduce the clocks to avoid black screens when running demanding games), then the remaining ones eventually burned out. I was sure it was something up with the vBIOS since I purchased the replacement from China, but I guess there is no way to know for sure if it's board related until I'm able to test another 980M.

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On 12/3/2019 at 9:18 AM, BasedKnight said:

I suppose that is possible. The original card died due to MOSFET failure. One failed, so I removed it and the card ran on the remaining 2 for awhile (just had to reduce the clocks to avoid black screens when running demanding games), then the remaining ones eventually burned out. I was sure it was something up with the vBIOS since I purchased the replacement from China, but I guess there is no way to know for sure if it's board related until I'm able to test another 980M.

Are you able to see the VBIOS version in the nvflash log? You might need to flash another VBIOS in order to get the card working in your system. If so you'll probably need to either use a SPI clip and a programmer to do a in circuit programming or desolder the VBIOS SPI flash chip and program it.

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8 minutes ago, BAKED said:

Are you able to see the VBIOS version in the nvflash log? You might need to flash another VBIOS in order to get the card working in your system. If so you'll probably need to either use a SPI clip and a programmer to do a in circuit programming or desolder the VBIOS SPI flash chip and program it.

 

Not sure because every command I ran through nvflash would return a 'No Nvidia display adapters error' when checking the log file generated using a different computer. Every version. Even when just trying to backup the current VBIOS. Pretty much attempted everything I could considering having to work completely blind, and unfortunately don't have access to a programmer. I've since settled on the card just being defective and have sent it back (ordered from eBay shop in China). Will probably try my luck again this time from a different source.

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4 minutes ago, BasedKnight said:

 

Not sure because every command I ran through nvflash would return a 'No Nvidia display adapters error' when checking the log file generated using a different computer. Every version. Even when just trying to backup the current VBIOS. Pretty much attempted everything I could considering having to work completely blind, and unfortunately don't have access to a programmer. I've since settled on the card just being defective and have sent it back (ordered from eBay shop in China). Will probably try my luck again this time from a different source.

Yeah stuff like that from China do tend to be defective sometimes, my guess is that they don't always test the parts before selling it in order to cut costs. Hope it gets sorted out for you.

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