2500k Stock Cooling overclocking

[AudioWorkshop]

I'm curious to a safe limit for over clocking a 2500k on a z68 motherboard.

I'm currently at 4.01 Ghz and all i did was change the CPU clock from 33 to 40

I want to run at least 4 really, but i want to do it properly and safely.
Hopefully i can run these speeds on stock cooling.

Thanks.
Ryan

 

[thelostswede]

I wouldn't advise it if you live in a warm climate.
The stock coolers are not designed for overclocking.
Invest in a heatpipe cooler, even something like Coolermaster's TX3 will do the job nicely.

 

[AudioWorkshop]

Its not exactly warm in the uk.
so would it be safe to run around 4ghz stock?

In the bios the core temps are about 51-54

 

[thelostswede]

Well, that's in the BIOS, i.e. idle, try running something CPU intensive for 10 minutes, touch the heatsink and let me know if it's safe...

My CPU runs at around 20-30 degrees idle, but then again, I'm using watercooling...

 

[AudioWorkshop]

Idleing with windows running in the 40's, seemed low to me, thought there was plenty of headroom for cpu heavy activity

can you recommend adequate cooling for a good price?
I want to spend as little as possible really.

I'd happily take the cpu up to 4.7, 4.8 if i could.

But i don't want to go nuts unless i know I'm not doing any damage.

EDIT:
Did some stress testing, after 100% load it was hitting 86c.
I think it needs cooling, if you can advise a good one for about £20-£30
That can handle 4ghz and maybe a bit more.

 

[thelostswede]

I thought I already did http://www.overclockers.co.uk/showprodu ... ubcat=2341

Also, is this where I go, I told you so?

 

[Craigrox]

Hyper 212 Evo by cooler master also

 

[lynx1984]

using Noctua NH-D14 in my power mac g5 clocked at 4.2 1.290v ambient temp @ 24c idle temp 33c prime 95 for 1 hour 68-69c. I would try and stay under the 70c mark.

 

[AudioWorkshop]

I'm liking the look of the suggestions so far.

What if i wanted to try and reach the peak limit of my CPU am i looking at needing water cooling?

Think i'll be investing in a Fan soon, possibly water cooling.
We'll see what sort of funds i have.

Thanks for your help guys.

 

[thelostswede]

Peak limit? LN2 mate...

You can't overclock your CPU that high on air or water, maybe with a cascade cooler, but I can't see you being a semi-professional overclocker...

You'd be lucky to get that chip much over 4.6 on Air/Water, some rare chips do 4.7...