CPU Overclocked all by itself?? is that even possible?

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gomilly

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Oct 1, 2012
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so my 2500k was at 4.4ghz for no reason. so ive been stuffing around with coolers and had a wee issue where my cpu got a bit hot because of an air pocket between my cpu and heatsink. i removed the heatsink and even removed the cpu and put it back in because i thought it couldnt hurt to do that. when i powered back on it said "cpu has been changed, press any key to configure it in bios" (something like that), so it took me to bios and i saved and exited.
i did nothing in the bios except save and exit. i continued to play bf3 to test it out. the temps got to 76C with a different, better heatsink i put on.
the game was freezing for half a second after a while so i looked at hardware monitor to see if my cpu was throttling and saw 4.4ghz!!!!
anyway after all that i fixed it by going to the bios and
changed "limit clock speed"
 
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Ehhh....I am still learning! I know my AMD FX-8350 and other AMD Chips are safe at 50C, I keep my around 47C. The Socket Temperature of my MB for AM3+ on my ASUS is 70C MAX! But I stay at 65.5 or shut down the test. And my PC is never constantly running at these temperatures, this is only during a stress test. During Battlefield 4 on Ultra i am at 30C (Core) and 32C (Socket). I know Intel can handle 70C on the chip, but for this answer, please do not act based off of my knowledge! I only know the FX temps.

Can you post your full PC specs, I'm sure someone else could help out more with this part of the question.

Found this: http://www.tomshardware.com/forum/id-1808604/intel-temperature-guide.html

Also good move on the "Limit" if it is...
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MichaelCohee

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Dec 9, 2013
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Something similar happened to me, you might have selected an "Auto-Tune" type option. Before I manually overclocked my computer I used the "One-Click Boost Mode" for a while and decided to wait for a new CPU cooler; so I clicked back to the normal mode. However, when I did this and then ran CPU-Z I found the CPU to actually be running at a higher frequency and stable even though I clicked off and saved the new settings. It was really weird, but I have the feeling that I may have either overwritten the "Base Settings" or my ASUS's "Optimal" mode saw that I wanted an OC and said, "Okay, I'm smarter than you, let's run it at this speed." Haha However, I am leaning towards human error. Since then, running a manual OC has gotten me better temperatures.
 
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gomilly

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Oct 1, 2012
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i didnt finish my sentience
changed "limit clock speed" to enable which is all i did to reverse it. i dont ever remember changing it so i dont know how long it could have been set like this. if i did want to use this feature in future would 76C be a safe temperature for running at for long periods of time while playing games?
 
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MichaelCohee

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Dec 9, 2013
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Ehhh....I am still learning! I know my AMD FX-8350 and other AMD Chips are safe at 50C, I keep my around 47C. The Socket Temperature of my MB for AM3+ on my ASUS is 70C MAX! But I stay at 65.5 or shut down the test. And my PC is never constantly running at these temperatures, this is only during a stress test. During Battlefield 4 on Ultra i am at 30C (Core) and 32C (Socket). I know Intel can handle 70C on the chip, but for this answer, please do not act based off of my knowledge! I only know the FX temps.

Can you post your full PC specs, I'm sure someone else could help out more with this part of the question.

Found this: http://www.tomshardware.com/forum/id-1808604/intel-temperature-guide.html

Also good move on the "Limit" if it is getting too hot. If you can work in an OC, you can try to find a way to get a cool OC around that speed.
 
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gomilly

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Oct 1, 2012
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Thanks. I'm just going to assume i changed that setting called "limit cpu core clock" to enable once apon a time when i was doing one of my 2am computer nights and forgot that i ever did it. i literally have no memory of going into bios and changing that. does anyone know what that setting is actually supposed to do?
my specs are:
p8p67m-pro motherboard
2500k
8gb 1600mhz ram
gtx 660 ti
900w silver psu
and all crammed into my little SilverStone PS08B case :)
 
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MichaelCohee

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Dec 9, 2013
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Check out this guy's video, he's one of the best Tech Reviewers and OC guide YouTubers.

http://m.youtube.com/watch?v=Qcta3RStYSM

Just lower all of the settings to adjust for your chip, he's doing the higher chips.

Don't cut any corners! If you mess up, you'll BSOD which is no big deal, if you mess up with Voltages, you may overload some parts. A stock heatsink is very restricting, keep that in mind.

I would say you are safe to follow his guide divided by the stock speed of your chip proportinate to the stock speed of the i7 on the tutorial. Otherwise, if you don't know what a UEFI BIOS function does, ask here or do some research or don't touch it haha.

Also, leaving settings on auto isn't bad. You told to always go over to manual or disable for best OC preformance, but in your case you can leave factory settings if you need to do a little more work. The only time you should change auto is in Voltages, but that's only if you are messing with the LoadLine Calibration.

You have a massive 900w PSU!!! The silver rating is prime for OC, I'm on bronze 600w, but, and this is a big "MTV Music Video" type but lol...If you aren't using all of your wattage it causes drastic power fluctuations which bad for the psu and preformance. You should try to get a stable voltage for your rig so as to avoid this. You can do this with power spread settings and manual voltage controls. I recommend finding your stock voltage level, it should say it to the left of the BIOS settings field, and manually enter the stock as a constant in order to stabilize your power.

When overclocking, throw energy consumption out the window, and your overall Fan's dB will be running load and fast during Prime95 tests.

Keep the thread informed! I'll learn Intel with you as i have to overclock my friends 3770 soon!

:)

Edit: Don't worry about a memory or grfx card OC until you finish the CPU. BTW, nice card! ;)
 
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