I'm stumped honestly.
Been messing about with this for a few days now and can't seem to get any kind of result.
Basically, when I try to run games on my R9 290, every 5-10 seconds, there's a 5-10 window where the game lags massively. I believe that this is down to CPU frequency scaling. Switching from the 290 and throwing in a new PSU has eliminated the 5-10 second issue. The issue appears at random points now, every minute or so, then doesn't go away for a minute or two.
Setup:
Xeon 2670v3
MSI X99 SLI PLUS
32GB DDR4
R9 290 GTX 1070
GTX 950
Blackwidow Ultimate
Naga Chroma
(I'm including keyboard and mouse, due to reading in a previous thread similar to this that someone was having similar issues with that combination).
Not currently passing through any USB controllers. Have passed through USB 2 controller for mouse and keyboard. This fixed any funkiness (random disconnects, sluggishness and random movements).
Things tried:
1. Stopping all docker applications and plugins to reduce overhead
2. Assigning 4-12 cores to the VM (excluding core 0)
3. Using the VM that has the GTX 950 passed to it (works perfectly)
4. Trying both OVMF and SeaBios installs (same issue, though seems more apparent on SeaBios)
5. Passing through the GTX 950 to the Windows install that was running the 290, works perfectly
6. Passing through onboard sound, graphics card sound (from the 290) and having no sound all result in the same issue
7. Trying a fresh Windows 10 install
8. Passing through USB controllers (made no difference, so I removed the passthrough for testing)
9. Disabling Speedstep in BIOS
10. Stress testing both GPU and CPU (neither thermal throttle, and 290 stays at max clock speed throughout, even when in game).
11. Enabled and disabled PCIE ACS, no difference.
One thing to note, the motherboard, CPU and RAM are new to this build, the graphics card and storage devices are from a previous build, as is my Unraid install. Is it possible this is causing issues?
Also with having no on-board graphics, my primary GPU that Unraid boots to console with is the 290, would it make a difference to swap the 290 and 950 around to see if the issue then occurs on the 950?
The only thing I can think of now is trying a different keyboard and mouse combination, which I will do when I get back from work tomorrow.
Edit: Used different keyboard and mouse and this made no difference.
I've a diagnostic log so hopefully someone will be able to find something.
Any other suggestions would be great!
Thanks!
limecake-diagnostics-20161108-0120.zip