Computer Randomly Freezing

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SublimeOrange

SublimeOrange

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Apr 23, 2012
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Hi there,

I built my current rig back in September, and the only things I've changed hardware wise since then is I've added another graphics card to go crossfire back in December. Within the past 2 months when just in Windows or when playing games such as Battlefield 3, League of Legends and Bioshock Infinite, I have occasionally been experiencing a type of "freezing", in which my screen freezes on the current image, the mouse and keyboard become unusable, and either the sound continues, or plays a horrible buzzing sound from my speakers. Rarely, after a few seconds or minutes I will be able to use it again as it seems to sort itself out, however most of the time I have to hard reset it as I have no other options, not even Alt+F4 or Ctrl+Alt+Del works.

I have tried narrowing down the possible reasons by running memtest for 10 passes to test my RAM, re-seating my RAM, scanning my hardrive, updated graphics drivers, but i still appear to be having this issue.

My current configuration:

CPU - i5 2500k @4.2Ghz 1.22v
RAM - 2x4GB Corsair Vengeance 1600Mhz
Motherboard - MSI Z77A-G45
GPU - 2x XFX HD 7770 DD Black Edition Super Overclock 1120/1300
HDD - Seagate Barracuda 500GB 7200rpm
PSU - Corsair GS700
Cooler - Cooler Master Hyper 212 EVO
Case - Antec ONE w/ 2x Stock Fans and 2x Bitfenix Spectres

Any help as to why I may be having these issues would be greatly appreciated.

Thankyou,

-SublimeOrange
 
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hapkido

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I would look at your CPU overclock -- too high clock speed for that voltage, too low vcore for that clock speed, or too much droop causing instability. Dial back to stock CPU settings and see if it still happens. If not, you've found your problem, and will have to dial in your OC settings.
 
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hapkido

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Corrupted video drivers would cause a BSOD. Motherboard BIOS updates are largely for small fixes or CPU compatibility. Malware won't cause a system to hard-freeze like this.

Hard-freezing is a definite sign of a CPU problem -- and something you would see in stability testing an overclock. Since he has an overclocked CPU but is running very low vcore I would look there first. For reference, I have an i5-2500k clocked at 4.4Ghz on 1.336V.
 
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bigcyco1

bigcyco1

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Feb 11, 2012
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It could be a number of things i know. And yes there virus and malware that will cause that :( but it's more then likely his overclock is not stable.I agree with you there.

 
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SublimeOrange

SublimeOrange

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After taking your advice I removed my 4.2Ghz oveclock and instead did a Turbo Boost overclock, setting the max multiplier to 45, and testing the voltages manually with a multi meter to see that the reading were 1.3V, for the 4.5Ghz when under load with Prime95. I have been fine for 3/4 days with no problems however, today I experience a freeze when playing League Of Legends in which my screen once again froze up, and a buzzing noise came through my speakers..

Any ideas?

Thanks
 
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hapkido

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Your overclock isn't stable.

Start over and overclock properly -- testing for stability along the way (I like Intel Burn Test because instability shows up much quicker than Prime 95). You can't just choose a frequency and voltage and expect things to work even if other people had success with those settings.

However, you can choose a voltage you're comfortable with (on a SB I believe the consensus is stay below 1.4Vcore) and raise clocks 100MHz at a time until Windows no longer boots, then dial it back a few hundred MHz and stability test. If you fail 20 passes of IBT or 12-24 hours of Prime 95, it's not stable and you'll need to lower your frequency by 100MHz and try again. You'll also need to make sure your temps stay in check.
 
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