PC turning on, but doesn't recognize anything in PCI-E slot.

Greg Sa

Reputable
Jul 31, 2014
2
0
4,510
As I said in the Title, the PC turns on, but the GPU is not recognized, and I'm forced to boot the PC through onboard graphics.
I have tried with other GPUs as well, but nothing happens.

Motherboard is a MSI K9AGM3. Main GPU is a ATI Radeon HD 4300-4500 and the other one I tried was nVidia Geforce 8500 GT. Both did not give off any signal through DVI nor VGA cable.

What I have tried
:
Updated BIOS, Updated Chipset. Tried to place PCI-E as default boot for video in the motherboard settings. Tried a different PSU, didn't work either.
Prior to the issue coming up, I had been doing some work with the CPU, resulting in it overheating. When I attempted to turn on the computer, it would receive video feed from the GPU, but would turn off due to overheat, so I left it to cool overnight and bought new paste, applied new paste to the CPU contact with the heatsink, and decided to refresh the heat paste on the GPU as well (This is where I think something went wrong, but I was particularly careful on both instances and made sure the paste didn't get anywhere else put the chip plate that contacts the heatsink.) I then turn it on, and bam, no video feed coming from the GPU. I have also tried 2 different PSUs, One is a Coolermaster HP-P4017F5WP and the other is Windmill PRO 38, neither did anything.

Speccy of my PC : http://speccy.piriform.com/results/Lp8QlTttb4YY5Pw5JdzCvpV



Any help would be appreciated.
 
Sounds like a solid base for testing. My first guess is a motherboard issue, but I could be wrong.
1) Any red lights stay on on the mobo (other than power) after a POST with a video card installed? After a POST without?
2) Do you have any other PCI-E device you could try - a sound card, for example - just to see if PCI-E is fried totally?

My guess is that test #2 will fail. If it does, unfortunately you will need either another mobo or another cpu to test further.
 

Greg Sa

Reputable
Jul 31, 2014
2
0
4,510


No lights apart from a flashing yellow/orange in the front side of the computer.
I don't have any PCI-E devices other than GPUs, only a PCI sound card.