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i5-2500k won't OC!! HELP

post #1 of 17
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I've had a 2500k installed in my PC for over 6 months. I had a modest overclock of 4.1GHz on the stock cooler (yeah, the ****ty included Intel one.. it's my work PC). At some point, those crappy little turn-and-lock mounts on the cooler broke loose and the fan was literally just dangling in the case. I had re-interfaced the CPU with Arctic Silver 5 and everything seemed fine.. except now I can't get anything but a stock clock of 3.7GHz. I'm wondering if something got damaged within the CPU from the (what I would imagine were) increased temps when the cooler demounted. Does that sound plausible?

I tried 3 separate methods, to no avail: manually OC'ing within BIOS, "Auto Tuning" via the ASUS TurboV EVO utility, manual multiplier adjustment via the ASUS TurboV EVO utility

As it sits, BLCK = 100.0MHz x 37.0MHz core ratio

I believe the previously mentioned overclock of 4.1GHz was achieved via the Auto Tuning utility with BLCK @ 102.MHz x 41.0 core ratio

I probably wouldn't go so aggressive and just leave the BLCK @ stock 100.0MHz and just bump the core ratio to 40.0MHz, which I have attempted with no success.

Any suggestions would be much appreciated. Thanks in advance!

JChap1590
   
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post #2 of 17
That is odd, if that is the case your lucky it didnt fry and just prevented overclocks in the future.

I wouldn't mess at all with the bclk. You can get more than enough speed with the multiplier.

What are your temps looking like at 3.7?
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post #3 of 17
Exactly what happens when you crank your multiplier to 40x with stock volts? Do you dump with x124 bluescreens?

Stop using auto-tuning tools. They suck, every single one of them suck.

Download CPU-Z and check your Vcore, what does it say during idle/load?
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post #4 of 17
Quote:
Originally Posted by sepheroth003 View Post

That is odd, if that is the case your lucky it didnt fry and just prevented overclocks in the future.

I wouldn't mess at all with the bclk. You can get more than enough speed with the multiplier.

What are your temps looking like at 3.7?

This isnt a sensitive IVY or AMD chip were talking about.

Its a friggin Sandy. Sandy doesnt care if she gets the sauna treatment, she turns off at 100c and reboots when youre under 100c. You would have to have some incredibly bad luck to fry a chip by losing your cooler for a few seconds.
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post #5 of 17
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Quote:
That is odd, if that is the case your lucky it didnt fry and just prevented overclocks in the future.

That's what I thought! If it was damaged, I would think it wouldn't run at all anymore, if anything...

Core Temp says my max temp was about 57C on avg. across the 4 cores. I don't have extremely heavy workloads as this is my work PC but I do typically have multiple applications running while sometimes editing high resolution images. Those temps are pretty good for a stock cooler, I'd say, no?
   
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post #6 of 17
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Quote:
You would have to have some incredibly bad luck to fry a chip by losing your cooler for a few seconds.

I really couldn't say how long the cooler had been dislodged before I came upon the issue. Core Temp starting beeping (I think at 80C) and then the system crashed. Upon reboot, a warning message stating the overclock had failed came up.. entering the BIOS temps were at 85-90C before even booting so something was obviously wrong.

It's really a terrible design how the Intel stock coolers mount, I can't stand them. Like, just gimme a frickin' backplate and some screws from Christ's sake!
   
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post #7 of 17
Yep,

Sandy throttles down at 95c, and shuts down at 100c. Running stresstests the concensus of the internez seems to be never to let it hit 85-90c. Topping at the low 80s when running prime isnt a problem for many people.

Anywhos Id be intrested in knowing how youre crashing if you just up the multi to 38-40x and seeing what happens.
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post #8 of 17
Thread Starter 
Quote:
Exactly what happens when you crank your multiplier to 40x with stock volts? Do you dump with x124 bluescreens?

As a fairly amateur overclocker, I don't touch voltages. No blue screen. Boots normal, just doesn't post properly I guess. It simply seems to revert to stock

Quote:
Stop using auto-tuning tools. They suck, every single one of them suck.

I typically just use the auto-tuning utility to get a bit of a baseline of what the CPU can do and then double-check exactly what it has auto-"tuned"
Quote:
Download CPU-Z and check your Vcore, what does it say during idle/load?

CPU-Z has Vcore @ about 1.28v
   
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post #9 of 17
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Quote:
Id be intrested in knowing how youre crashing if you just up the multi to 38-40x and seeing what happens.

It doesn't crash. It boots fine but just simply doesn't OC
   
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post #10 of 17
Does it, before windows starts, just reset and warn about your OC getting removed, or does it work ONCE and at reboot revert to stock settings?

You shouldnt have to touch your voltages to just up it a few hundred mhz.


So the process is this:

You enter BIOS
You up your mutliplier
Computer restarts
You get the screen saying its reverted instantly?
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