Computer not detecting second GPU! Please Help

sennettas

Honorable
Jan 15, 2014
12
0
10,510
Hello everyone!

I recently built a new computer and after 2 weeks decided to get another graphics card and run SLI. I am running into a problem because my computer will not detect the other graphics card. I know that both of my motherboards PCIe Slots (one PCIe x16 and on PCIe x8) are working because I tested each GPU in both slots and they worked. I've spent the most part of 4 days trying to get this to work, been doing trouble shooting and posting on forums with very little help.

PC:

Motherboard: GA-Z87X-HD3

Graphics Cards: 2 Asus GeForce GTX 660 DirectCU OC

Power Supply: Antec 850w High Current Pro

RAM: 8GB RipJaw

Processor: Intel Core i5-3570K

Pictures of the PC: Picture 1 Picture 2 Sorry about the quality my phone's a potato.

Side notes:


I have purchased a new SLI bridge so I know it is not the bridge (yes it is installed).

I am running Windows 7 Home Premium 64-bit (A legit copy, went out and bought it today because I've heard it could be a problem. It was not the problem in this case!)

I have uninstalled the Nvidia drivers and done CC sweeps to completely remove them, then re-installed them and still nothing.

I have disabled my on-board graphics card in my BIOS settings (didn't see anything in there on PCIe slots regarding both being active).



Anything will help! I hope to get this problem solved so I can finally enjoy SLI gaming!
 

sennettas

Honorable
Jan 15, 2014
12
0
10,510


My computer is not detecting the second GPU. Meaning that the Nvidia control panel wont be able to detect the card either.
 

thequn

Distinguished
Nov 4, 2012
393
0
18,810
after your test put gpu 1 in second slot and no sli bridge. put the monitor cable on the gpu in slot 2 and then report back.
lol i forgot you said you tryed it. so just try again with out the sil bridge and moniter in slot 2
 

sennettas

Honorable
Jan 15, 2014
12
0
10,510


I have done this twice so far. I know the PCIe slots and both graphics cards are working. I feel like it could be my PSU, I'm bringing it to my local computer shop to get them to take a look at it later today and test my PSU.