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I5 3570k OC Damage?

post #1 of 23
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About 6 months ago I bought an i5 3570k for a gaming rig I was putting together. This was my first computer build, and was very excited about the final product. I knew that CPU Overclocking can be very knowledge intensive, so I read up on how to do it -safely- for about a month before starting the OC process. When I DID start the process, I didn't do anything major. The cpu is rated for a 3.8ghz boost clock, so I went up to 4.0ghz, then 4.2ghz, without any problem. I ran into a little bit of stability issues when I tried above 4.4ghz, which was understandable, considering I didn't change any voltages yet. I started playing around with the voltages, increasing the voltage from stock to 1.300v. This allowed me to run 4.5ghz stable, great, but I really wanted to push my processor, to see how fast I could get it. After playing with it for about a week, I was able to get it to 4.8ghz, at 1.475v. A 1.4ghz OC!

At 4.8ghz @ 1.475v, resulted in a relatively stable OC. p95 failed after a 6 hour test, with a maximum temperature of 88c (air). Not perfect, but not bad for my first major overclock. I knew that 1.475v was very close to the recommended maximum voltage of 1.500v, and that failing p95 usually means the OC is unstable, but I was not worried because my normal operating temperature was so low. (77c while encoding video, 68c while gaming) and only Bluescreened while doing the p95 benchmark, and not under normal use.

This is the OC I have been using for 6 months now, and I am starting to have a few questions. I know for a fact that I did not change all of the values I should have while setting up my overclock. For example I do not think I changed the PLL, VCC ect, Only the VCore.

My question for everyone is: Can running my CPU at this voltage severely lower my cpu life? I know that it DOES somewhat, but is it something I should be worried about? Can anyone explain CPU overvolting damage caused by Electromigration to me? I would like to think that because I keep my temps far below the recommended max, that I am somewhat safe...
post #2 of 23
does sound like a lot of voltage, but I dont know the 3570k at all =(

I would kick it down see i you can remain stable at 3.6/3.7 instead with lower voltage
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post #3 of 23
In my opinion you should lower the clock speed and voltage. if a OC fails in Prime 95 It is never a good sign.

I suggest leaving it at 4.4Ghz and 1.225-1.3V. 88°c at 100% is acceptable but I rather keep it High 60-70.
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post #4 of 23
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I just feel like I'm wasting potential by lowering my OC when I basically never go above 75c \ 105c. If people start suggesting I lower my OC for a reason other than Temperature then I probably will.
post #5 of 23
I wouldn't worry to much. I have my mainrig 3770K at about 1.48 vcore, but I only use it for gaming, so even though I have the computer on 24/7, it's idle most of the time, and when idle, the vcore is like 1.2 or something. So unless you are doing cpu intensive stuff 24/7 or something then I don't really think it will hurt your cpu, since the cpu clocks itself down when idle.

edit: and besides, some people would claim that it's the temps more than the voltage that degrades the cpu.
Edited by Op125 - 3/5/13 at 1:13pm
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post #6 of 23
Don't worry too much about the vcore. I'd link related post, where a guy posted a wall of text on the degradation of CPU's and how it is not really a concern with these kind of voltages, but i have lost it somewhere. Also, if your CPU stays stable without WHEA errors in your daily usage, then no stress tests is needed for stability validation, unless running prime95 is part of your favorite daily activities. I only use prime to detect imminent stability issues by running it for about 5 mins and then i go on with my work/games and monitor for errors.

As long as you have a good MoBo with beefy VRM, a good PSU to back up that increased power consumption and a good cooling, i wouldn't worry about the voltages with IB. It's not like it feeds that voltage constantly anyway, if you set it with offset, making it drop when idling/browsing.
Edited by Fulvin - 3/5/13 at 1:25pm
post #7 of 23
Thread Starter 
Hmm, I suppose I didn't think about it's down-clocking capabilities. I also suppose there is a reason I haven't heard of Electromigration until now. That really settles my nerves.

I am still curious about Electromigration if anyone does have any knowledge of it, if not, thank you all.
post #8 of 23
i admit, ive never once in my life run Prime95 and I doubt I ever will lol ;p

If my Computer can game for a few hours without issue, than I consider it stable and good to go thumb.gif
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post #9 of 23
1.475 is way too high.

88°C is way too high on Prime95. I go for a max of 80 on Prime95.

Basically, anything past 1.35v on air with this chip is likely going to damage it in the long run. Especially if your overclock wasn't stable and temps were at said point.
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post #10 of 23
Electromigration is an issue over long periods of time with high voltage sicne the copper wires are receiving more current. but it has something to do with the Atoms in the wire not changing while the current grows allowing more atom displacement, or something to that extent.

I read up on it a very long time ago, and is the reason why I do the majority of my overclocking with Stock Voltage.

But then again, i was quite spoiled with my socket 939 processors =)
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