Here is my build for reference
Gigabyte GA-Z87M-D3H
Intel i3-4340
8GB Ram Kingston DDR3
750W Power Supply Corsair
2 X R9 270X HIS Video Card.
I need this system primarily for work and I am using 6 monitors so far with the potential to upgrade to 10.
Currently, I have 2 outputs from the onboard video card. D-Sub and DVI.
I added 1 video card (R9 270X) and used the 2 outputs so I had a total of 4.
However when I added another video card to try to use another 2 outputs, for some reason my onboard D-Sub becomes unstable.
The screen either shows static, system gets unstable, or just stays blank.
When I remove 1 of the video cards, the system runs fine.
When I disable the onboard video, the other 2 video cards run fine.
I assumed it was the video cards so I swapped them with some old Radeon 4650 cards and have the exact same issue. Tried re-installing OS, Drivers. Swapping RAM. Different PSU.
EXACT SAME ISSUE EACH TIME
I noticed however something strange. I was benchmarking my video card one day, and I noticed that while the benchmark was running, everything was fine. As soon as I was done with the benchmark, a few minutes later the onboard video becomes unstable.
I noticed that it uses something like 0.8Volts when not in use, and when the GPU is in use it uses 1.2V and everything runs stable.
I have been basically running a small benchmark in the background just to be able to use the system.
Any idea what it can be?
Gigabyte GA-Z87M-D3H
Intel i3-4340
8GB Ram Kingston DDR3
750W Power Supply Corsair
2 X R9 270X HIS Video Card.
I need this system primarily for work and I am using 6 monitors so far with the potential to upgrade to 10.
Currently, I have 2 outputs from the onboard video card. D-Sub and DVI.
I added 1 video card (R9 270X) and used the 2 outputs so I had a total of 4.
However when I added another video card to try to use another 2 outputs, for some reason my onboard D-Sub becomes unstable.
The screen either shows static, system gets unstable, or just stays blank.
When I remove 1 of the video cards, the system runs fine.
When I disable the onboard video, the other 2 video cards run fine.
I assumed it was the video cards so I swapped them with some old Radeon 4650 cards and have the exact same issue. Tried re-installing OS, Drivers. Swapping RAM. Different PSU.
EXACT SAME ISSUE EACH TIME
I noticed however something strange. I was benchmarking my video card one day, and I noticed that while the benchmark was running, everything was fine. As soon as I was done with the benchmark, a few minutes later the onboard video becomes unstable.
I noticed that it uses something like 0.8Volts when not in use, and when the GPU is in use it uses 1.2V and everything runs stable.
I have been basically running a small benchmark in the background just to be able to use the system.
Any idea what it can be?
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