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System Acting Funky -- Can't Maintain Previously Stable OC, Artifacts/Vertical Lines

post #1 of 10
Thread Starter 
Hey Guys,

Up until recently, my system was operating fine and has been for 8 months. It's a 1090T overclocked to 4 GHz (200x20). Then one morning, the system spontaneously restarted under load, and I was never able to get back into Windows. It would either restart back to the POST screen or stall on a primarily back screen with five or six cyan dashes in the top left hand corner after the Windows 7 boot logo would disappear. Going back to stock speeds and voltages didn't make any difference. While I was making many loops restarting, I noticed sometimes at POST it would have a garbled up screen, or the Windows safe mode menu would have two bold vertical pink lines.

I ended up reinstalling Windows, and the system isn't exactly 100% back to normal. I use my rig primarily to play StarCraft 2, and at times, I've noticed the FPS drop to 10-15 frames. I play on Extreme settings, but this was never a problem before. I tried to even bump it down to Medium settings during the game, but it didn't make a difference. It wasn't until I restarted, that it went back to normal. Today, I tried to revert the system back to its previously stable overclocked settings, and it's no longer stable. The symptoms that I saw earlier when my Windows went FUBAR are back -- intermittent garbled up POST and BIOS screen, Windows safe mode menu has two bold pink lines, and since I have dual monitors, my right screen shows the boot logo/menu before the left, but when things are screwed up such as showing those pink bars or unable to get into Windows, I don't see anything on the right monitor at all. I've also tried upgrading the BIOS to a newer version (F7e).

Another weird issue that has always happened from when I had this system is my USB systems would sometimes get "stuck". My gaming headset is detected, but it won't actually play audio until I unplug/plug it back in. It has also affected my Razer mouse, where it won't move until I unplug and plug it back in.

Any clues as to what it may be? I'm thinking it's either the motherboard, video card, or PSU. The issue is this is my only system, and I don't have another system or friend to swap parts and isolate the issue with.

The system at stock speeds/voltages can pass through Prime95 and FurMark fine. The core temperatures showing in HWMonitor never exceed 50 degrees under load. GPU temperatures while playing StarCraft are in the mid 70s and as high as mid-80s when running Furmark.

System:

1090T
Gigabyte 890FXA-UD5
Corsair H80
XFX Radeon HD 6870 900MHZ 1GB (Stock)
Corsair 60GB SSD
Corsair TX650W 650W
G.SKILL Ripjaws X F3-12800CL9D-8GBXL 8GB 2X4GB

Here are the two pink bars at the Windows menu:

photo-1.jpg
post #2 of 10
I might have missed it but I read your OC consisted of 200 FSB, 20 multi; what were you CPU volts, CPU/NB Volts, and NB Volts?

Sorry to say, but as your probably already know that when you OC, you run the risk of reducing your hardware life. With that said a 4.0 Ghz isn't exactly extreme. You also had really good cooling with your H80, so you have the taunting task of testing all you hardware to see whats causing the issues. You already installed Windows so you can eliminate possible OS conflicts.

Some of your issues sound a bit like an HDD failure. So you might want to run tests on your HDD and Memory to make sure those arn't an issue. When you ran prime95 did any of your cores fail (if not your CPU could be OK)? After that, you have your MOBO and your PSU; but the issues your stating don't sound like the PSU so I would focus more on your MOBO.

Last but not least don't rule out the simple things. You system shut down, might have changed some of your settings on the MOBO . Make sure all settings are where they should be.

Anyways I know what it's like after a system fail to get lowered performance. I had an HDD failure on one of my older systems. When I swapped out the HDD for a better one I was getting lowered performance and other issues, turns out my MOBO also had problems, so I switched that out and everything was fine. I read on a few posts and forums were members stated that one hardware failure ended up causing other ones.


Keep me posted, If I think of anything, i'll update you.
Edited by Bravo2010 - 2/17/12 at 5:50pm
 
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post #3 of 10
So i was looking at the artifacts ive seen similar ones when vram is bad but if you didnt oc your card then maybe case heat might have caused it. If you can find a way to rule out the gpu. Your psu shouldnt cause that in dos graphics, so that points to your mobo
Edited by Bravo2010 - 2/19/12 at 2:01pm
 
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post #4 of 10
I thinking more towards your gpu the temps are on the higher side do you have another known good gpu?
post #5 of 10
I had this happen once on my system. Ended up switching the ram slots and it worked again. Dunno.
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post #6 of 10
Thread Starter 
I think I've partially resolved the issue:

1. The performance issues were BIOS related. The updated (and unofficial) BIOS version wasn't exactly stable. I noticed in CPU-Z that my CPU was constantly throttling itself down to 800 MHz, however while it was under load, it seemed to remain constant at the clock speed it was supposed to be at, so I ignored this since upgrading the BIOS. While I read this was an issue with my motherboard, I was never affected by the issue before. I also noticed my voltages were constantly fluctuating. It wasn't until today that I went back to my old BIOS version, and behold, my performance is now back to normal.

2. Prior to finding out about my BIOS issue, I also addressed some heat issues on the northbridge and my GPU by replacing the paste with MX-4. The northbridge temperatures are now 10 degrees cooler, and the GPU temperatures also idles lower, but during load still spike up to about the high 70s. But this is due to the controlled fan speed via Overdrive.

3. The artifacting and vertical lines do still periodically appear, but it isn't happening every time it restarts. I've also managed to revert back to my original overclock settings, with even lower voltages.

Thanks everyone for the help and suggestions.
post #7 of 10
Quote:
Originally Posted by Yodums View Post

I think I've partially resolved the issue:
1. The performance issues were BIOS related. The updated (and unofficial) BIOS version wasn't exactly stable. I noticed in CPU-Z that my CPU was constantly throttling itself down to 800 MHz, however while it was under load, it seemed to remain constant at the clock speed it was supposed to be at, so I ignored this since upgrading the BIOS. While I read this was an issue with my motherboard, I was never affected by the issue before. I also noticed my voltages were constantly fluctuating. It wasn't until today that I went back to my old BIOS version, and behold, my performance is now back to normal.

It's either Quiet & Cool or C1E which is lowering your clock speed while idling; it's a good thing. A power saving feature. You can disable both through the BIOS.
Quote:
2. Prior to finding out about my BIOS issue, I also addressed some heat issues on the northbridge and my GPU by replacing the paste with MX-4. The northbridge temperatures are now 10 degrees cooler, and the GPU temperatures also idles lower, but during load still spike up to about the high 70s. But this is due to the controlled fan speed via Overdrive.
3. The artifacting and vertical lines do still periodically appear, but it isn't happening every time it restarts. I've also managed to revert back to my original overclock settings, with even lower voltages.
Thanks everyone for the help and suggestions.

From your posted screenshot, it really does appear to be either a monitor or graphics card issue. In particular, either the VGA port (you could try switching to the secondary input, if you have one) or the VRAM. Either can cause strange artifacting.
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post #8 of 10
you have the turbo turn on it throttling up underload and back down when not underload the 1090T will do 800 mHZalso try changing your monitor cable if you have a newer one laying around
post #9 of 10
The 800 mhz is normal power saving behaviour disable cool and quite and turbo when ocing. The artifacts again are signs of vram failure you should look that up on the net.it might also be gpu over heating but artifacts are usually gpu related in one way or another. Goggle signs of video card failure, I've had multiple cards go and a few of them had this just before the end. also check your gpu temps and make sure they're not too high
Edited by Bravo2010 - 2/24/12 at 5:59am
 
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post #10 of 10
I use MSI Afterburner to ramp up the fans to keep my GPUs cooler. When folding I notice the extra noise, but when gaming I have a headset on and do not hear it. I have also added fans to my case to blow cool air on and away from my GPUs.
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