Ok, so I have a PC with
AMD FX 8320 overclocked to 3.7 Ghz (4.3 GHz turbo),
R9 270 Double X 4GB overclock edition
8 GBs of RAM
Motherboard Gigabyte 78 LMT USB 3
Windows 7 Ultimate
Issue Description:
So everything runs well at the beginning, but suddenly all of the following happens at the same time:
Display starts to flicker, Windows Aero disables (transparency),
HW monitor shows that my CPU max freq. is around 6,000Hz, some cores even show 7,000 and 8,000Hz (which obviously is impossible as temps are stable)
And everything in my PC runs like fast forwarded (visual only, audio works fine for everything), the most noticeable thing are games of course, which every single game (about 8) run like they were fast forwarded (everything within the game, from loading screens to gameplay itself) Some games even crash.
I'm not sure what could've caused the issue.
I'm thinking it could be the CPU overclocking but I'm not sure.
If I reboot the PC everything comes back to normal for a while but then it all happens again.
UPDATE: SOLUTION!!!
OK, so like I mentioned above it was definetely a latency issue
There are several things that can cause this but mostly are outdated drivers (or , in my case, outdated BIOS)
So in my specific case, the solution (appears to be, still testing) was to update BIOS, that's something you should try if you encounter the problem BUT be careful because it's a delicate procedure, make sure to use only the BIOS and BIOS updater provided by the manufacturer of your Motherboard, I would't recommend third party software.
RE-UPDATE: SOLUTION(2):
The solution mentioned above definitely solved the problem, BUT one thing I noticed that makes DPC latency get high (NOT so high as before updating BIOS, but stil high) is HW Monitor, I've read in some other posts that people didn't recommend HW Monitor as the best software and I didn't really understand why, now I have a reason. I'm not saying it will cause problems in all PCs, but if you ever face a problem like mine and have HW monitor, (or similar software, it's not personal against that specific software), you could start your testing from there.
AMD FX 8320 overclocked to 3.7 Ghz (4.3 GHz turbo),
R9 270 Double X 4GB overclock edition
8 GBs of RAM
Motherboard Gigabyte 78 LMT USB 3
Windows 7 Ultimate
Issue Description:
So everything runs well at the beginning, but suddenly all of the following happens at the same time:
Display starts to flicker, Windows Aero disables (transparency),
HW monitor shows that my CPU max freq. is around 6,000Hz, some cores even show 7,000 and 8,000Hz (which obviously is impossible as temps are stable)
And everything in my PC runs like fast forwarded (visual only, audio works fine for everything), the most noticeable thing are games of course, which every single game (about 8) run like they were fast forwarded (everything within the game, from loading screens to gameplay itself) Some games even crash.
I'm not sure what could've caused the issue.
I'm thinking it could be the CPU overclocking but I'm not sure.
If I reboot the PC everything comes back to normal for a while but then it all happens again.
UPDATE: SOLUTION!!!
OK, so like I mentioned above it was definetely a latency issue
There are several things that can cause this but mostly are outdated drivers (or , in my case, outdated BIOS)
So in my specific case, the solution (appears to be, still testing) was to update BIOS, that's something you should try if you encounter the problem BUT be careful because it's a delicate procedure, make sure to use only the BIOS and BIOS updater provided by the manufacturer of your Motherboard, I would't recommend third party software.
RE-UPDATE: SOLUTION(2):
The solution mentioned above definitely solved the problem, BUT one thing I noticed that makes DPC latency get high (NOT so high as before updating BIOS, but stil high) is HW Monitor, I've read in some other posts that people didn't recommend HW Monitor as the best software and I didn't really understand why, now I have a reason. I'm not saying it will cause problems in all PCs, but if you ever face a problem like mine and have HW monitor, (or similar software, it's not personal against that specific software), you could start your testing from there.