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OC 2500k to 5Ghz

post #1 of 9
Thread Starter 
Soon I will be upgrading my PC and I'll be able to get a new motherboard which is capable of overclocking. I was thinking of getting either, the ASUS Z77 Sabertooth or the ASRock Z77 Extreme3-4 But first, I need to know what steps I should be taking. Will I need to buy a water cooler like a Corsair H60 or H110? Or is air cooling fine?
I also heard OC'ing requires something about your ram? (I run 12GB of DDR3 133Mhz, 2 4GB sticks and 2 2GB Sticks). When I OC to 5Ghz, will I need to test my cpu for hours? I hope not.
post #2 of 9
I have a 2500k @ 5.0 GHz on my older Asus P67 Sabertooth motherboard and im running a custom watercooling setup. h110 might barely be enough for 5.0, not sure what temps people with those are getting but an h80 wont cut it and definitely not air.

there are some good sandy bridge oc guides here, just use the search. theyll tell you everything.
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i5-2500k Asus Sabertooth P67 B3 EVGA GTX 760 Corsair XMS 
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My rig
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post #3 of 9
Thread Starter 
Is 5Ghz even needed? I was thinking 4.5 or 4.8 if i can't do 5ghz. Also what good would 5ghz have? just to say you could do it?
I pretty much game and from what it seems, my CPU is slightly holding me back and I wasting potential with a really good cpu to overclock and i'm not doing it.
Edited by Draza767 - 8/20/13 at 9:48am
post #4 of 9
I can run 5ghz with mine for a few hours at a time (*with low ambient temps mainly in winter in basement) with an H80.

During the summer/ normal use I run 4.5ghz and have okay temps. I don't really notice a difference between the speeds, just do it for fun/benchmarks.

You probably don't need 5ghz unless you know you'll be taxing your system a lot, encoding and such~ but if that's what you're planning to do then it'd be better to upgrade to something with more threads.

Also, as silverh20 posted, there are plenty of guides around; Just do some research on the motherboards you're looking at.
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post #5 of 9
Thread Starter 
Well should I upgrade to a 3rd gen cpu, 4th gen cpu or oc my i5 to 4.5ghz?
post #6 of 9
there are i7 3770k for 249 usd at micro center
Edited by PontiacGTX - 8/20/13 at 11:46am
Wanted: Wanted: R9 290/X/R9 390/X
$165 (USD) or best offer
  
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Wanted: Wanted: R9 290/X/R9 390/X
$165 (USD) or best offer
  
Reply
post #7 of 9
If you already have a 2500K, I would just stick with that and OC to 4.5Ghz. The slight per-clock improvements with Ivy and even Haswell are pretty redundant for most typical uses, like gaming. Unless the PCI-E 3.0 is actually going to play factor in you choice of GPU, but it takes a pretty high-end unit to be bottleneck a little bit on a PCI-E 2.0 lane, anyway.

A 2500K OC'd on an Z77 with internal USB 3.0 headers is a pretty practical approach, IMO. The margins of improve are heavily out-weighed by the total cost on 22nm chips. Again, it's especially the case if you already have the 2500K chip on hand. (I take it was in an H61 board til now...?).

My 2500K runs 4.5Ghz all day at great Vcore and temps on a 212+. I found 5Ghz to be quite pointless, even with processor intensive PCSX2 emulation. PC games typically are more modest in comparison with their processing requirements, and they never account, or expect, for the "Recommend" CPU to be overclocked at 30% higher than stock, either. wink.gif
Edited by Rezard - 8/20/13 at 10:17pm
Quantum
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Quantum
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First Knight
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MiniMicro
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Trident X DDR3 2400 Mushkin Cronos Deluxe Asus Black DVD-RW Xigmatek Gaia (XAF) 
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a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
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OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
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2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
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post #8 of 9
I Think a 2500k can handle High Voltage and High Temps Perfectly,

First year i had my 2500k, i run 4.9ghz on 1.45v maximum 65/70c gaming 75/80c stress testing

no for more then half a year i run 5.0ghz on 1.51v with a maximum of 70c gaming 80/85c stress testing

On overclock.net you read more people running close to 1.5v since release date, i think these chips can surely take a beating.

So if you just get some proper cooling, dont matter if its air or water, 4.8g to 5.0g can be achieved by allmost any 2500k.
It all depends on how high you wanna let the voltage / temps go thumb.gif
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Blazer
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post #9 of 9
Thread Starter 
Ok well, I planned to do 4.5ghz or 4.7-4.8ghz, how do I stress test it properly so I know it's stable? I was thinking prime95 for 10-12 hours but i don't know what settings to put for a "torture" test.
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