No video after adding 4th video card (3x Titan X + 1 GTX 960)

shlndr

Commendable
Nov 26, 2016
2
0
1,510
Hello!

I built my machine last August and in it I had 2x Titan X and 1 GTX 960. System has been very stable and never had a video problem.

Today I added another Titan X (Maxwell, same as above 2) and the video started behaving erratically.

I was able to get it up and running with all 4 cards in but then Windows started making the beeping noise that indicates something was removed. Then the video goes in and out.

I tried removing each card and was able to get a stable boot with the 3 Titans and no 960.

The 960 is definitely the problem, I just can't seem to figure out why.

All the drivers are up to date.

Specs:

Asus X99-e WS
64 GB RAM
Video: 3440 x 1440
3x Titan (Maxwell)
1x GTX 960
PSU: AX1200i

Thanks!