BIOS Error with PCI-E 16X Graphics Card Slot

qyang19

Reputable
Nov 1, 2015
1
0
4,510
It all started when I built my desktop about 2 and a half years ago.

Specs:

CPU: Intel 2550k 3.4Ghz
Mobo: ASUS P8H77-V-LE
GPU: Colorful GTX650
SSD: ADATA 128 GB
PSU: 500W [80Bronze]

I used it for a year and a half but then there were problems...

I tried reinstalling Win7 but it would just get stuck at the loading screen forever
But Win.8 worked

Now the computer powers on 70% of the time. ONLY IF the graphics card is in the 8X position
Otherwise the BIOS beeps 1 long 3 short. If it was in the 8X slot everything is fine but when it's in the 16X slot, it beeps and doesn't boot.

I think this is a Motherboard problem but I can't be sure since I don't have any old compatible parts lying around to test it.

I would appreciate your help very much! Thank you :)
 

meat_loaf

Distinguished
Oct 20, 2011
650
0
19,360


Check the mobo manual about the beeps. As each different mobo has different beep warnings. I don't think windows 7 installation has anything to do with your motherboard, more like whatever copy you have got corrupted.

When you say your computer powers on 70% of the time, do you mean that it shuts itself off? Not to clear what you mean by that statement. If your graphics card can only work in 8x mode instead of 16x like it used to, it could be something wrong with the bios and requires a complete cmos reset. Try removing the battery and shut off the psu. If that doesn't fix it, then it could be your mobo is dying.
 
1) update the chipset driver, because it comes with the pcie controller driver. https://downloadcenter.intel.com/download/20775
2) May try update the BIOS too.

If you try those two, and you still have problem, that means the problem was caused by the hardware, pcie slot/MB, because you do update the software. So you can just use the gtx650 in that pciex8, you should be fine with the pciex8 slot. Check the reviews pciex16 vs pciex8.
http://www.techpowerup.com/reviews/NVIDIA/GTX_980_PCI-Express_Scaling/14.html
https://www.pugetsystems.com/labs/articles/Impact-of-PCI-E-Speed-on-Gaming-Performance-518/