My 2500k isn't overclocking anymore..

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So recently I cant get my 2500k to 4.6Ghz without putting the voltage to a whopping 1.43v which, causes way too much heat and tells me there must be a problem.

I've basically swapped out my entire system, the only things that are present from my old system, are the graphics cards and the hard drives.

Is my 2500k faulty? I have about another 3-4 months warranty left on it.

Thanks in advance :).
 
What motherboard did you use before and what are you using now?

Was using a GA-Z68AP-D3 I believe, but I had the same problems on that motherboard, which really is what prompted the upgrade to my new Z77X-D3H.

I think the chip might be faulty, but I wanna troubleshoot it first.
 
Chip could have degraded but can't call it faulty.

Would only be faulty if it fails to run at stock speed.
 
But I never ran it at stupid volts or temps, that's why I don't see it being a degrading problem either. But maybe you're right.. I'll send it off to Intel see what they make of it.

Thanks all.
 
But I never ran it at stupid volts or temps, that's why I don't see it being a degrading problem either. But maybe you're right.. I'll send it off to Intel see what they make of it.

Thanks all.

How can you send a chip to intel that will not clock to 4.6ghz anymore?

I don't think they guarantee any kind of overclocking, also how are you going to explain to them that it is faulty, you can't say because it won't do 4.6ghz it's faulty.

But do keep us informed:D
 
How much ram did you have before? As in dimm slots filled.

If you have 4x4gb now and had (for example) 2x4gb before, then the 2 extra dimms being filled puts extra strain on the cpu memory controller.
 
As above, change of memory can have all sorts of effects on the oc. Try dropping the memory to 1333mhz and work on the cpu from there.

Also don't send it back to Intel, all you're going to get is testing and postage charges as well and probably laughed at by Intel.
 
Intel wont accept the chip back for not being able to overclock as much as it used to. Think about it - did you receive any guarantees that it would overclock to 4.6Ghz before you bought it? Nope...

You've not mentioned how you are cooling this chip. Purely out of interest, what are you using?
 
... and when you say you have to set 1.43v, is that the voltage applied, or is that the voltage that you've recorded after booting into Windows (via CPUID for instance)?

Did you have Loadline callibration set previously? That will increase the voltage when nder load, but not usually enough to damage it.

It does sound like your chip has become less overclockable, but unless it completely fails or partially fails to operate at stock frequency, you will not be able to get a replacement.

You may be as well selling it on ebay and buying a new one....
 
I did double my memory from 2x4gb to 4x4gb... come to think about it that might have been when the 'issues' started.

I set the voltage to about 1.43 in the bios with the loadline set to default.

I'll drop the memory down to 1333 and let you know what happens after that.

At the moment I'm using the uh, artic cooling is it? I forget the name, it's a cheapy, I was going to upgrade to the H100 if I can get it to overclock it to around about 4.6/4.7.

Are there not voltages that I can play with (given the right cooling) to try and achieve the same overclocking results with 4x4gb as I did with 2x4gb?

Thanks in advance all, you've been a great help so far :).
 
Note that this refers to the revision 1.0 motherboard so check what revision you have before proceeding further.

There have been BIOS updates which may relate to your problem.

  • F6 Enhanced overclocking compatibility
  • F7 Improve Sandy Bridge CPU overclocking
  • F8 Improve system compatibility
  • F9 Improve CPU stability
The latest is F10.

GA-Z77X-D3H rev1.0 BIOS
 
Note that this refers to the revision 1.0 motherboard so check what revision you have before proceeding further.

There have been BIOS updates which may relate to your problem.

  • F6 Enhanced overclocking compatibility
  • F7 Improve Sandy Bridge CPU overclocking
  • F8 Improve system compatibility
  • F9 Improve CPU stability
The latest is F10.

GA-Z77X-D3H rev1.0 BIOS

Oh wow thats great to here buddy, thanks for letting me know :). I'll download F10 now :).
 
Hi, l had that problem with a friends Pc no OC, l unplugged everything from the mobo and took the CPU out and took the battery out for a hour, solved the problem worth a try.
 
The additional memory would explain the instability. 2 sticks in dual channel vs 4 sticks in dual channel would draw a few more watts through the CPU. Have you played with the other voltages at all when trying to get the chip stable.

Also, what do you mean it won't overclock? It wont post or it wont pass stress tests successfully?
 
The additional memory would explain the instability. 2 sticks in dual channel vs 4 sticks in dual channel would draw a few more watts through the CPU. Have you played with the other voltages at all when trying to get the chip stable.

Also, what do you mean it won't overclock? It wont post or it wont pass stress tests successfully?

I'm not sure which voltages too/I should play with in regards to having an extra two sticks of ram. By wont overclock I mean it requires crazy voltage and bsods if I try to use the voltage I used to.
 
Ok after a bit of research on the interwebs I've started to tinker with PLL and VTT voltages rather than just slapping voltage on the core, I've also updated the BIOS (thanks Surveyor) and added two fans to my case to complete a push pull.

It's looking OK atm, but I haven't stressed it much, currently running 4.7Ghz at 1.4v .

I will report back though, but thanks to everyone for your help so far :)
 
How can you send a chip to intel that will not clock to 4.6ghz anymore?

I don't think they guarantee any kind of overclocking, also how are you going to explain to them that it is faulty, you can't say because it won't do 4.6ghz it's faulty.

But do keep us informed:D

sorry to be rude but thats rubbish, they offer overclocking insurance (£15 inc vat) and also why would they sell unlocked multi cpus if they didnt guarantee overclocking!!!

Intel wont accept the chip back for not being able to overclock as much as it used to. Think about it - did you receive any guarantees that it would overclock to 4.6Ghz before you bought it? Nope...

You've not mentioned how you are cooling this chip. Purely out of interest, what are you using?

of coarse they will, unless you put enough volts through to burn the pins they will not know you have overclocked!!!



the truth is your warranty is void as soon as you use an aftermarket cooler and not the intel one but intel have no way of proving otherwise usless you tell them, that is why OEM chips only have one year which is supplied by the retailer and not intel.
 
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