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Game and Video Stuttering and other issues. Possibly a PSU issue?

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June 21, 2013 9:57:39 PM

Hi, guys. I've been having issues with my computer for a few months now, and I think it's due to the PSU, but before I get a new one I was hoping I could find out what you think.

A few months ago, my computer started behaving strangely at startup and shutdown. When I start up the computer, it will hit the motherboard's boot screen, go black for a few seconds, and then reset and cycle back to the boot screen. This will continue until I switch off/on the PSU and try again (the power and reset buttons have no effect). It seems completely random whether it breaks the cycle or not. At shutdown, Windows will shut down normally, but the fans and LEDs in the tower continue running. Again, they won't stop until I switch off the PSU and the power and reset buttons have no effect.

I let this happen for a couple months (a stupid thing to do, I know), because it didn't seem to be causing any problems performance-wise, but about a month ago, nearly all my games started hitching up. I'll be playing, and suddenly the video freezes for a couple seconds (audio still plays normally most of the time, but not always) and then resumes normally. Other than the hitches, my FPS is acting as normal as it usually does as far as I know. I also noticed this happens with videos that I play through MPC and VLC as well. Web videos don't seem to be affected. I've updated all of my drivers, but the problem persists.

The game and video stuttering could be anything, I assume, but a couple suggestions I've found through Google imply that maybe not enough power is getting to my video cards. I'm pretty sure the startup/shutdown problems are PSU issues, so maybe both problems are related? What do you guys think?

Here's my build:
GIGABYTE GA-Z68XP-UD4 Motherboard
Intel Core i5-2500K Sandy Bridge
2xEVGA GTX 580s
8GB (2x4GB) 1600 DDR3 RAM
CORSAIR HX Series HX1050 1050W PSU

Thanks for your help!
June 21, 2013 10:04:33 PM

If I had the restarting issue on boot I would think maybe it's the MB/BIOS... but I'm no expert or even a novice in this area, so.. lol
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June 21, 2013 10:11:16 PM

brafu said:
If I had the restarting issue on boot I would think maybe it's the MB/BIOS... but I'm no expert or even a novice in this area, so.. lol


Well, the reason I'm so sure about it being related to the PSU is because I actually ran into the problem before when I was first building the PC. Apparently the main connector to the motherboard was a little loose and reconnecting it solved the problem. It's been working perfectly since then (built it in late 2011) until now. Obviously I tried reconnecting everything when the problem cropped up again, but it didn't work this time.
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June 21, 2013 10:14:59 PM

Google on "GIGABYTE GA-Z68XP-UD4 boot loop" and you'll find that you're not the only one afflicted with the problem. You can try some of the solutions suggested in the search results.

GIGABYTE found that if you press and hold the reset button for more than one second the motherboard will enter a boot loop.

To fix the continuous boot loop you are suppose to flash the backup BIOS with the same version as the main BIOS.
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June 22, 2013 1:05:16 AM

ko888 said:
Google on "GIGABYTE GA-Z68XP-UD4 boot loop" and you'll find that you're not the only one afflicted with the problem. You can try some of the solutions suggested in the search results.

GIGABYTE found that if you press and hold the reset button for more than one second the motherboard will enter a boot loop.

To fix the continuous boot loop you are suppose to flash the backup BIOS with the same version as the main BIOS.


Well, that fixed the boot loop problems. Thanks!

The stuttering persists, though, unfortunately. Any suggestions?
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June 22, 2013 1:20:38 AM

Have you checked to make sure nothing else is running that could be taking CPU cycles away from the games? I would make sure there are also no services running that might cause problems since they can be running and it's pretty easy to miss it unless you make a habit of checking the running processes (as I do).
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June 22, 2013 1:43:10 AM

brafu said:
Have you checked to make sure nothing else is running that could be taking CPU cycles away from the games? I would make sure there are also no services running that might cause problems since they can be running and it's pretty easy to miss it unless you make a habit of checking the running processes (as I do).


Well, my idle CPU usage hovers around 0 and 3 percent for the most part (memory usage at 2.2GB). As for services, I wouldn't even know where to begin to try to find something that's interfering.
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June 22, 2013 10:18:21 AM

check out www.blackviper.com for an idea on the service issue. He does a great job of listing out Microsoft services and what they do, and which ones you can disable without any trouble. Then you can search the net for services you find that are not listed on his site to see what they do and if you need them or not.
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