Second Graphics Card not working

voo05

Honorable
Sep 30, 2013
2
0
10,510
Comp Specs:

Mobo: Asus P8Z77-V LK
Processor: Intel I7 3770K 3.40 Ghz
Ram: 2x4 DDR3 Kingston HyperX
GPU: 2x AMD Radeon HD 7870


problem: I've taken it to a computer place to fix it, and at the time I thought it had been fixed, but apparently not. I have 2 graphics cards, clearly, and the one that's currently in the second slot doesn't work. It has power, the fans are on, and it's detected, but the activity when shown is 0 in my CCC, I can't connect monitors to it, and the one in the top slot overheats and crashes my computer if I do any sort of gaming. they seem to be properly connected, and everything seems to be working except.. well.. it's not. could this be a hardware malfunction or what?

sorry I really don't know much about computers, if there's any important info left out, let me know...


edit: also, not sure if related, but when I leave my computer and the screen turns off, the only way for me to get it to turn back on is by ctrl+alt+delete

also i'm on a 32 bit windows ultimate
 
Solution
You need two Six-Pin PCI-E connectors *per card*. Some of them look like 6+2 pin connectors, (8 pins total, six on the main and a two pin "split"). if those aren't connected, those could be the source of your heat/shut down issues.

CraigN

Distinguished
As for the heating issue have you tried playing with the side of your case open to allow more ventilation, and seeing if it crashes then?

Also, do you have two 6pin PCI-Express power connectors attached to the top of each video card?

Unrelated to your problem: You should get a 64-bit Windows. You've got 8GB of RAM and Windows can't utilize half of it because you're on 32-bit.
 

voo05

Honorable
Sep 30, 2013
2
0
10,510


I opened my case after the first time, hasn't helped much if at all.

for the power connectors, it seems like I have an 8 pin split into 2? something like that. there is one cord heading to each of them that says 8 pin that goes into one, and another cord connects that spot into another (looks like it just splits it or something)

i'm aware of the problem with windows, I'm just trying to fix this problem before I worry about it

 

CraigN

Distinguished
You need two Six-Pin PCI-E connectors *per card*. Some of them look like 6+2 pin connectors, (8 pins total, six on the main and a two pin "split"). if those aren't connected, those could be the source of your heat/shut down issues.
 
Solution