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PC doesn't boot up with GPU: MB dead?

 
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post #1 of 7 (permalink) Old 02-05-2019, 07:07 AM - Thread Starter
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PC doesn't boot up with GPU: MB dead?

My PC now boots up only with integrated graphic, I tried even a new graphic card without success (no matter which slot I put it in): if the GPU is installed and connected to the power supply, the PC won't boot up (the VGA alarm LED will turn on on the MB).

Should I assume that the MB is dead?


note: everything else works perfectly fine, it is just impossible to use any discrete GPU (in either of the two PCI-E slots)

any input is warmly welcome

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post #2 of 7 (permalink) Old 02-05-2019, 07:27 AM
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Have you tried swapping the PSU out yet? This does not specifically point to the motherboard without testing that first. Its possible the PSU isn't applying proper power to the PCI-E systems or to the GPU itself and the motherboard is simply reacting to this.
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post #3 of 7 (permalink) Old 02-05-2019, 07:33 AM
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I had a bad 8 pin modular cable that caused this issues once. Doubt it's the mobo. Try a different 8 pin connector to feed power to the video card.

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post #4 of 7 (permalink) Old 02-05-2019, 07:47 AM - Thread Starter
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Quote: Originally Posted by ORL View Post
Have you tried swapping the PSU out yet? This does not specifically point to the motherboard without testing that first. Its possible the PSU isn't applying proper power to the PCI-E systems or to the GPU itself and the motherboard is simply reacting to this.
I didn't consider this because everything else works... atm I have no ways of trying a new PSU without buying one

Quote: Originally Posted by pgdeaner View Post
I had a bad 8 pin modular cable that caused this issues once. Doubt it's the mobo. Try a different 8 pin connector to feed power to the video card.
I can test this, yes

thanks both of you!

Best Story Driven Games thread
The Creature
(15 items)
CPU
i7 2600k
Motherboard
Asus P8Z68 V-Pro
GPU
Sapphire HD 7950 OC Boost
RAM
16Gb Corsair Vengeance
Hard Drive
OCZ Vertex3 6Gb/s + 2Tb Seagate GoFlex
Optical Drive
none
Power Supply
Corsair AX850 80+ Gold
Cooling
Corsair H80
Case
Corsair 600T Modded
Operating System
Linux LTS 64bit
Monitor
Samsung SyncMaster BX2450
Keyboard
CoolerMaster Quickfire TK
Mouse
Steelseries Xai
Mouse
Steelseries HD
Audio
E-Mu Tracker Pre USB
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post #5 of 7 (permalink) Old 02-05-2019, 02:24 PM
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If you are able to post some pictures, that might help as well. Have you tried resetting your BIOS to factory defaults?

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post #6 of 7 (permalink) Old 02-06-2019, 07:18 AM - Thread Starter
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Quote: Originally Posted by pgdeaner View Post
If you are able to post some pictures, that might help as well. Have you tried resetting your BIOS to factory defaults?
atm I disconnected al cables and will take it to a friend that has a similar PSU, so I can test that. Will get back to this thread once this is done

Best Story Driven Games thread
The Creature
(15 items)
CPU
i7 2600k
Motherboard
Asus P8Z68 V-Pro
GPU
Sapphire HD 7950 OC Boost
RAM
16Gb Corsair Vengeance
Hard Drive
OCZ Vertex3 6Gb/s + 2Tb Seagate GoFlex
Optical Drive
none
Power Supply
Corsair AX850 80+ Gold
Cooling
Corsair H80
Case
Corsair 600T Modded
Operating System
Linux LTS 64bit
Monitor
Samsung SyncMaster BX2450
Keyboard
CoolerMaster Quickfire TK
Mouse
Steelseries Xai
Mouse
Steelseries HD
Audio
E-Mu Tracker Pre USB
▲ hide details ▲
_LDC_ is offline  
post #7 of 7 (permalink) Old 02-20-2019, 02:05 PM - Thread Starter
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okay so here is the update as promised: the lab confirmed that the motherboard is deceased. RIP.

since I doubt that getting a compatible motherboard for a ten yo PC, installing it and whatnot would be a good investment, I already ordered a new PC and will be selling the old one, either "as is" or piece by piece.


Thanks all you who replied!

Best Story Driven Games thread
The Creature
(15 items)
CPU
i7 2600k
Motherboard
Asus P8Z68 V-Pro
GPU
Sapphire HD 7950 OC Boost
RAM
16Gb Corsair Vengeance
Hard Drive
OCZ Vertex3 6Gb/s + 2Tb Seagate GoFlex
Optical Drive
none
Power Supply
Corsair AX850 80+ Gold
Cooling
Corsair H80
Case
Corsair 600T Modded
Operating System
Linux LTS 64bit
Monitor
Samsung SyncMaster BX2450
Keyboard
CoolerMaster Quickfire TK
Mouse
Steelseries Xai
Mouse
Steelseries HD
Audio
E-Mu Tracker Pre USB
▲ hide details ▲
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