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Issues in games after unlocking AMD Phenom X2 555?

post #1 of 41
Thread Starter 
Hello! (First post here smile.gif )

My newly built el-cheapo rig is as follows:
ASUS M4A88T-M/USB3
AMD Phenom II X2 555
ATI Radeon 4850

As luck would have it, my processor unlocked without a hitch when setting ACC to Auto and Unleashing to Enabled. (My friend even tried fiddling with the processor and said it can stay stable at VCORE 1.2V, not sure if that is good or not, but I set it back to AUTO when I was trying to fix this issue)

My problem is that now most games have this infuriating glitch or problem where it seems like the viewpoint is rapidly rotating or moving, similar to double-vision, but for two different views of the game's map. What is even wierder is that in strategy games like Company of Heroes, this is accompanied by the mini-map rapidly rotating according to the screen. Any in-game HUD is not affected, only 3D elements.

Some of the games affected are Black Ops, Modern Warfare 2, Company of Heroes, among many others. Strangely enough, League of Legends is not affected by this, as is Age of Mythology.

This stays even I tried my older 4670, so I don't think its a GPU problem, although it still might be? I use the latest drivers.

When reverting to a dual-core again, these problems disappear completely, so it has something to do with being a quad, but so far, the PC has been completely stable as a quad core. Is there some way to check if there is a faulty core?


Thanks in advance for your time!
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post #2 of 41
It sounds like you've already checked if there's a faulty core with your games. Gaming is a stability test. You might want to give up on the unlock or look into ways of stabilizing it.

Can you disable specific cores in BIOS after unlocking? You may try that as well. Give yourself an X3 if you can find which hunk of silicon is acting up.
post #3 of 41
Thread Starter 
While I may not be that lucky to have all cores stable, it is wierd how this is the only way the processor is acting up.. I read about people testing their processors using Prime95, should I try that? Anything specific to keep in mind?

And yes, the BIOS can disable specific cores.
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post #4 of 41
Quote:
Originally Posted by Lesiroth;12234981 
While I may not be that lucky to have all cores stable, it is wierd how this is the only way the processor is acting up.. I read about people testing their processors using Prime95, should I try that? Anything specific to keep in mind?

And yes, the BIOS can disable specific cores.
Yeah Prime95 is great. It will actually tell you which core fails, provided windows doesn't crash. I'd recommend running it for at least 8 hours. Small FFTs stress the CPU itself and cache, large FFTs stress the IMC and RAM. Blend test is probably great for your purposes, that tests everything.
post #5 of 41
You could try increasing voltage, but you shouldn't do so on that mobo. Unlocked x2 = 125W, 125W + 4+1 power phase = not very optimal and somewhat dangerous. If unheatsinked, don't overclock/overvolt at all. If heatsinked, keep it moderate (i.e. below 1.475V). You may want to begin searching now for a ~$8 pack of mosfet heatsinks to keep things smooth & reliable.
post #6 of 41
Honestly is does not even make sense to unlock the processor....if your just gaming, most games run well at the stock 3.2ghz. U'll be better off if you just increase the cpu multiplier to 20x and take the clock speed up to 4ghz and you will be happy.

Yes i did experience game instability i.e. in modern warfare the gun alone use to jiggle about ...nothing else moves but the gun just flickers and jiggles ever so slightly and as soon as i lock the two other cores the game plays normally.

Prime 95 only tests stability so far if you ask me, because i had my chip as a B55 @ 4.2ghz all night and no instability...but as soon as i game its unstable or causes a glitch...so if you know your going to be gaming don't use prime 95 as a concrete reference for stability.
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post #7 of 41
Thread Starter 
Well, some not so good news..

I tried Prime95, chose the blend test, and I usually get this error on one of the workers:
FATAL ERROR: Rounding was 0.5, expected less than 0.4

I suppose that does mean something is wrong here, but I also forgot to mention that I got a few BSODs with the error message MEMORY_MANAGEMENT, could the RAM be the problem here? Would changing it fix my other issues?

But can the problem really be with the memory if it only appeared while in quad-core mode?

@xd_1771
Yes, I do have a heatsink(I'm not sure how you'd not have one?) and my PSU is HEC 420W, is it unadequate? What is puzzling me is that I get the same result with the VCORE at 1.2V as it is at 1.4V..

@amd-dude
Is it possible to overclock to such a high level with the default heatsink? And yes, your problems do seem similar to mine. So do all people with unlocked Phenoms face these glitches?
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post #8 of 41
I'm not sure if other people get the same glitches that we do never really heard anyother complaints. With regards to overclocking with the stock heat sink, i don't think you should if you have a spare $30 go buy the cooler master hyper 212+ its the perfect cooler for this chip...even at 1.5v my core temp does not pass 36c under full load.
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post #9 of 41
Thread Starter 
What I want to know is, can the BSODs I mentioned earlier and the Prime95 hanging be a result of faulty RAM? I will admit what I am using is a 2GB 1333 DDR3 RAM by a company named Hynix, which I've never heard of before. (It came free with the mobo tongue.gif )
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Phenom II X2 555 ASUS M4A88T-M/USB3 Gigabyte Radeon 4850 DDR3 Hynix 2GB 1333 
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Western Digital 160GB Blue Windows 7/Linux Samsung P2370MS HEC 420W 
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Western Digital 160GB Blue Windows 7/Linux Samsung P2370MS HEC 420W 
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post #10 of 41
pull out one of your sticks and try again..swap the sticks around until you find the faulty one.....if its the ram that is,or if you have two sticks.
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