GTX 560Ti Error 43

Ebahn13

Reputable
Jun 10, 2015
2
0
4,510
So, I am having a weird problem with my 560Ti, but first my setup:
ASRock 970 Extreme3
AMD FX-8350 Black Edition (4GHz stock, Hyper 212 cooling)
G.Skill Ripjaw DDR3 (4x4Gb)
EVGA GTX 760/560Ti (Non-SLI)

So my 760 works in both the upper and lower PCI-e slots (x16/x4 respectively)
And my 560Ti works in the upper (x16), but for some reason when it goes into the lower (x4) I get the error 34 (problem code 0000002B) in the device manager.
It doesn't matter if just my 560 is in or both cards are, it gets the error 43 in the lower slot.
I don't know what is going on, I had it set up with both cards a month ago and it was working fine until I swapped the 560 out with an old TV tuner (had found the tuner and an old window-mounted Over-the-Air antenna, decided to muck with it)
I have tried airblasting the slot on top of clean driver installs from both the device manager and the EVGA download page, both new and old versions...
So any help would be appreciated!
 
Bump: Found another 560Ti in an old pc.
New GPU shows same error, old GPU works fine in other PC.
Gonna try some old drivers I guess and work from there...