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Is this a good overclock for i5 2500k?

post #1 of 9
Thread Starter 
Hi all,

I've setup my overclock and am currently stress testing with prime95. Its been going for about an hour without a problem. Here's my setup:

MSI P67a-GD55-B3
i5 2500k
Corsair A70 w/ Arctic F12 fans
Zotac GTX 570
Corsair 850TX
Azza Hurrican 2000

I'm currently at 4.5 gHz with a core voltage of 1.296 (lowering it in BIOS doesn't seem to lower it in CPU-Z). My ide temps are between 26-34 degrees, and my load temps are between 57-64 degrees. I'm afraid to push it much more, since I've read you can get to the point that this cooler can't keep up.

I was orginally going to go with water cooling, but changed my mind last minute and almost got an expensive air cooler. Then I figured I'd never go water if I did that, so I went for the A70, which was $30 after rebate. The fans sucked so I repurposed a pair of F12s that were going into my HTPC build. I had some doubts about the cooler, but I think its actually doing pretty well.

Is this about what others are getting with their i5's? Do I have any more room to push it with this cooler, or should I leave it here? Thanks for any help.

BP

Edit: I guess I'm still a little undecided about whether I should exchange for something like an NH-14 and go for a more extreme overclock, or stick with this setup for now.
Edited by BackwardPawn - 4/13/11 at 9:08pm
post #2 of 9
Lots of people are getting 4.6 to 4.8. Check out the Thermalright Silver Arrow, it's the best air cooler pretty much. If your chip can do it, that cooler will be good enough for 5 GHz if you have a well vented case.
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post #3 of 9
See what your CPU can handle and where you hit the wall with your chip. For mine, anything over 4.6GHz requires a boost in vCore that I don't feel is worth the few extra megahertz. For instance, I could probably get 4.8GHz stable at around 1.40v (it was semi-stable at 1.38v), but the extra 200MHz isn't really worth the extra 0.065v to me. I'd rather keep it at 4.6GHz @ 1.335v for the lower temps.

Some chips can handle higher multipliers at lower voltages (just look at Sheyster's, for instance). You just have to play with yours to see. Also, your temps look great. Maxing out at 64°C means you have lots of room left. My chip tops out at 74°C in Prime95 Blend and 78°C in IntelBurnTest (with the new linpack). When I had it at 4.8GHz, the numbers were closer to 80 and 85°C, respectively.

Long story short, you have plenty of room left in both voltage and temperature. Play around and see what you can hit.
post #4 of 9
to OP (original poster)
click on user cp at top of page, and select edit system and fill in your pc's specs, so we can see what you have.
also welcome to the forum

there is room for more of an overclock, but you are now limited by temps.
have you got the fans set up in a push/pull config. on your A70?

but is it worth paying out upto $90 for an extra overclock of maybe 0.3Ghz.
to me its not worth the expense.
i would be happy with 4.5ghz

but if money is no object then yes the noctua d14 or silver arrow are considered the best air coolers, just make sure the width of your case is big enough,
or go down the watercooling route
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post #5 of 9
So what is a safe temperature for an OC of 5ghz?
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post #6 of 9
TJMax is reported to be 98°C. Thermal throttling is reported to happen in the low to mid 90°C range. I'd say if you can keep a stress test in the low to mid 80°C range, it would be ok, though less than optimal. I believe most are aiming for below 80°C during a stress test for 24/7 overclocks.
post #7 of 9
Quote:
Originally Posted by BackwardPawn View Post
Hi all,

I've setup my overclock and am currently stress testing with prime95. Its been going for about an hour without a problem. Here's my setup:

MSI P67a-GD55-B3
i5 2500k
Corsair A70 w/ Arctic F12 fans
Zotac GTX 570
Corsair 850TX
Azza Hurrican 2000

I'm currently at 4.5 gHz with a core voltage of 1.296 (lowering it in BIOS doesn't seem to lower it in CPU-Z). My ide temps are between 26-34 degrees, and my load temps are between 57-64 degrees. I'm afraid to push it much more, since I've read you can get to the point that this cooler can't keep up.

I was orginally going to go with water cooling, but changed my mind last minute and almost got an expensive air cooler. Then I figured I'd never go water if I did that, so I went for the A70, which was $30 after rebate. The fans sucked so I repurposed a pair of F12s that were going into my HTPC build. I had some doubts about the cooler, but I think its actually doing pretty well.

Is this about what others are getting with their i5's? Do I have any more room to push it with this cooler, or should I leave it here? Thanks for any help.

BP

Edit: I guess I'm still a little undecided about whether I should exchange for something like an NH-14 and go for a more extreme overclock, or stick with this setup for now.
With that cooler you can push it up to 5-5.2 gig, just watch your temp max temp would be 100* but I rather push it as much as 80-85* always leave room.
    
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post #8 of 9
Quote:
Originally Posted by RomeoOG View Post
With that cooler you can push it up to 5-5.2 gig, just watch your temp max temp would be 100* but I rather push it as much as 80-85* always leave room.
You can't even hit 100C without this chip throttling - soooo...

If you want to keep your chip for a while - keep it under 75C in stress testing. Also, I wouldn't go over 1.4v for a significant amount of time.

But like I said "IF YOU WANT TO KEEP YOUR CHIP FOR A WHILE"

Re-emphasized for the inevitable "This is overclock.net, we push till it burns"
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post #9 of 9
From what a seen and hear there is very very little in perfromance in 4.5ghz vs. 5.0ghz. 5.0ghz+ is bragging rights for ocers.
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