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Green Tint after OCing X2 550 BE

post #1 of 8
Thread Starter 
Symptoms:
Green tint when rendering video (VLC player or WMP)
League of Legends spell/terrain problems (feels like some layers of video flicker)

System:
Phenom X2 550 BE (unlocked)
GIGABYTE GA-MA770T-UD3P
GForce 460 (768mb)

Story:
Hello,
I unlocked and overclocked my Phenom x2 550 BE last week but I am now having some problems.

I have the GIGABYTE GA-MA770T-UD3P and after turning ACC to auto and EC Firmware to Hybrid my computer booted normally. I increased voltage to VCORE and VCORE - NB incrementally to 1.4 and 1.325, respectively. I increased the CPU multiplier and was running steady and cool at ~3.6.

I was originally running the stock heatsink and my system would auto-restart when running prime95. It would reach 69 degrees for a moment before shutting down.

After installing a new heatsink I can run prime95 without reaching 56 degrees. However, when all four cores are enabled I occasionally get a green tint when rendering HD video. I play LoL and spells and some terrain textures flicker in any mode other than "Fast Terrain", which is intended for PC's with performance concerns. I can play Dragon Age II on high settings without any problems or impairments.

Suggestions? If I disable the third and forth core everything works well again. Could this be a voltage issue? I read that I might need to change the voltage to cores independently but haven't tried that yet (default is +2% each, I think). Does it sound like I damaged one or both of the other cores? CPU monitor shows each running at close to 100% during stress tests and I don't get any errors in any program I have run. I also ran mem86 to ensure it's not a memory problem.

Sorry for the long post. Wanted to be as thorough as possible.

Chris
post #2 of 8
The Phenom II's have built in ACC, no need to set it in the BIOS. Leave it at auto.

Run OCCT Linpack at 90% mem for at least 8 hours (I know, but its the best way) to check for real stability. Prime doesn't even get very hard until the 12th hour or so.

But I think its a stability problem.
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The Butthurt Box
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post #3 of 8
usually many green tints added to the visual is based upon graphics problems

double check ur graphics settings and wiring setups!

i hope i helped in any way, if so let me no (:
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post #4 of 8
Your two extra cores may just not be 100% stable
post #5 of 8
Thread Starter 
Thanks for the OCCT suggestion. I'm playing around with it now and trying to narrow down the problem.

@Raw - What do you mean by graphics settings? I have new drivers and my graphics are fine in most games. It's very particular instances or HD video rendering where I get green tinting; and then it's only partial screen, not the entire thing.

Thanks,
Chris
post #6 of 8
Thread Starter 
After 8 hours of OCCT Linpack (90%) my temp with new heatsink never breached 55c. No errors were reported... I also got a new PSU in case that was the issue.

Is it possible I damaged my MOBO while incrementing voltages?

Thanks again,
Chris
post #7 of 8
Quote:
Originally Posted by grasstopher View Post
Story:
Hello,
I unlocked and overclocked my Phenom x2 550 BE last week but I am now having some problems.

Suggestions? If I disable the third and forth core everything works well again.

Chris

you shouldnt damage your mobo or cpu with a 1.4v setting.
try disabling your unlocked cores 1 at a time. 1 of them is more than likely faulty and causing instability. worst case scenario is both are faulty and you have the x2 that you bought. best case scenario, only 1 core is faulty.
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w00t
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post #8 of 8
Thread Starter 
it seems that it was just one of my cores. I flashed my bios to f8 which allowed me to disable cores independently. Core 3 seems to have been causing the problem and everything is running smoothly now.

Thanks everyone for your help.
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