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Will unstable Overclock cause damage?

post #1 of 19
Thread Starter 
Hello!
Today I came across a video on YouTube with a guide how to use Prime95 when overclocking your CPU. I know how to do that, but in the end the guy said you may not just run a stress test for only 1 or 4 hours. He probably thinks 8-10 hours should be fine.
I'm soon planning on overclocking an AMD Phenom II X4 955 BE CPU to like 3.8GHz if I can. If I ran a stress test for about 4 or even 8 hours the power I use will be immensely.

So the first question is:
How long should or could I run a Prime95 CPU stress test?

Second question:
Will an unstable overclock be able to damage other hardware or the OS?

The guy in the video said it will cause damage. I've never heard of something like that before and that's why I need to ask..

Please reply! Thanks!
post #2 of 19
How long? It has been asked a lot before, it's usually just preference. You may stress it for 24hrs, then right after it might crash; or stress it for 2hrs, then it's completely fine. I usually read from other people that they stress for 16hrs+. I've read before that others stress for 24hrs, then when they game, they BSOD/crash.

An unstable system would obviously cause instability; instabilities can cause the system to crash; crashing can cause data loss/corruption, and/or bricking your hardware.

I hope this answers your questions.
Edited by choLOL - 6/10/11 at 12:32am
post #3 of 19
Crashing can brick your hardware? I've never heard of this happening before, unless you bumped your voltages or frequencies ridiculously high.
Edited by OrangeBunnies - 6/10/11 at 12:37am
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post #4 of 19
I doubt that system crash will cause hardware damage <.<, worst case scenario is loose/corruption of data. If you crash due the high temps, solution: downclock, get aftermarket cooler.
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post #5 of 19
Nope, No damage can be done, you can put the FSB or multiplier to sky high and still no damage will be done, unless you put some crazy god-like voltage's through your components.

BSODing, hanging and crashing is a good thing because it tells you that your overclock is unstable and you should adjust your settings
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post #6 of 19
Quote:
Originally Posted by OrangeBunnies View Post
Crashing can brick your hardware? I've never heard of this happening before, unless you bumped your voltages or frequencies ridiculously high.
and this was what I was pertaining to. lol.
post #7 of 19
Data corruption is the main concern unless like mentioned you are pumping too many volts.
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post #8 of 19
Instability can't damage your components, only ridiculous voltage can. Most people tend to run Prime95 10+ hours. If you run Prime95 for 10 hours and then IBT/LinX for 20 runs on high, you're rock stable.
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post #9 of 19
Thread Starter 
Thanks for the awesome replies! Now I know that ridiculous voltages will damage the system. I knew that before, but still thanks. Thank you also for answering the question for how long should I run a Prime95 stress test.

There still is something unclear for me though..
What do you exactly mean with data corruption?
Do you lose all your data or the recently added files?
Will data corruption kill the Operating system?

But will this data corruption also damage my Hard Disk Drive?

Please reply..
post #10 of 19
Quote:
Originally Posted by Nicolas11x12 View Post
There still is something unclear for me though..
What do you exactly mean with data corruption?
Do you lose all your data or the recently added files?
Will data corruption kill the Operating system?

But will this data corruption also damage my Hard Disk Drive?

1. Corruption of ongoing stuff, like memory etc. so applications crash and stuff.
2. No.
3. No.
4. No.
..
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