what's the max volatge you would put through a 2600K?

hopeful_builder · 15 Jun 2012 at 14:14

I've always been led to believe it was 1.38, but now I see 1.52v all over the place?

mines at 1.38v at 4.8Ghz, but this is just using the auto settings under UEFI in the BIOS. Just curious as if I can get more safely or if im wasting my time?

pgi947 · 15 Jun 2012 at 15:09

For me 1.5v Max for a quick bench, 1.4v Max for day to day.

Don't bother with the high voltages unless you have capable cooling I.e. water.

Yaayuh! · 15 Jun 2012 at 15:19

Air: 1.45v
Water: 1.5-1.55v (depending on how good it is)
Phase Change: Until it starts smoking.

hopeful_builder · 15 Jun 2012 at 15:28

ah ok. thanks for the reply folks. at the moment I only have the fan turned up half way.

under load over clocked at 4.8 I'm getting max temp of 67Degrees. Am I correct to assume shouldn't really go over 70 Degrees?

If So I'd like to at least go just over 5, and turn the V8 up a touch

Loque · 15 Jun 2012 at 16:32

70 is fine. I would say you are safe up to 90. Don't go over 90 though.

hopeful_builder · 15 Jun 2012 at 16:33

90? seriously? I thought that was only the case for ivybridge lol

Rooster212 · 15 Jun 2012 at 16:47

My 2500K isn't a very good clocker, I need 1.38v to get 4.3GHz, and I get temps of around 60-70c under load. Any higher and I'd dial down the clocks.

Surveyor · 15 Jun 2012 at 17:31

From OcUK:

***OVERCLOCKING GUIDELINES***

- Do not exceed 1.425v core voltage, doing so could limit lifespan of the CPU
- Aim to keep temperatures below 70c underload if at all possible
- Do not overclock with BCLK, again doing so could limit lifespan of the CPU
- Recommended memory voltage is 1.50v, so make sure to run your memory at 1.50v, higher than 1.60v could limit lifespan of the CPU
- These recommendations come from OcUK and Intel, your warranty is un-affected but we highly recommend you adhere to the above to make sure your CPU lifespan is un-affected
- All Sandybridge CPU's worldwide should be run at the above or lower voltages, no higher!

Surveyor · 15 Jun 2012 at 17:32

Loque said:
70 is fine. I would say you are safe up to 90. Don't go over 90 though.

Quality advice :rolleyes:

Leeroy123 · 15 Jun 2012 at 17:36

When i have mine on 5ghz i need 1.48 - 1.5v mate. mine is a bad clocker too. I need 1.47v for 4.8.

hopeful_builder · 15 Jun 2012 at 19:04

Leeroy123 said:
When i have mine on 5ghz i need 1.48 - 1.5v mate. mine is a bad clocker too. I need 1.47v for 4.8.

oh I thought mine wasn't brilliant but I guess its isn;t that bad after youve said what yours is like. Silicon lottery lol

hopeful_builder · 15 Jun 2012 at 19:05

Surveyor said:
From OcUK:

thanks Surveyor. I guess it isn't worth the bothering with for a 24/7 over-clock But I might just temporarily see if I can get in the 5G club

Justintime · 15 Jun 2012 at 19:15

Surveyor said:
Quality advice

I'd say 85C under such stress tests as IBT or LINX in an ambient of about 23-25C is perfectly acceptable (heck some OEM pcs hit that at stock speed and cooling), 70C load is nothing to even begin twitching about. 85C with games or normal programs though could be an indicator of poor cooling or bad case cooling etc.. and is not acceptable in my book. As for the ocuk guidelines, those are hardly professional or deeply researched and are more to protect the company by giving rather conservative settings (i only really agree on the vcore, and i even think 1.425v is a little too high) to reduce RMAs etc..

Some of their 'overclocked' rigs have not managed to pass my stability testings and i'd hardly consider myself a professional overclocker (I've troubleshooted 4 pcs in all bought from them that turned out to be a poorly done clock)

Surveyor · 15 Jun 2012 at 21:49

The OP hasn't defined what they mean by "under load".

If it's in "normal use" they should be aiming for a fair bit less than 85-90C.

90C is high even if stress testing.

hopeful_builder · 16 Jun 2012 at 01:09

I was always led to believe sandybridge should go above 75 degrees under load. eg prime 95. more so when over clocking.

This made me also ask what max voltage i should push through my 2600k as there's so much this n that around the internet, I wanted a fairly conclusive and sensible perspective from those with the chips themselves.

karan538 · 17 Jun 2012 at 13:58

Day to day basis I dont think you should go over 4.6/4.7 unless you have great cooling which keeps the temps down.

Keeping it 5ghz on a regular clock will limit the lifespan and you should only to it if you want to benchmark or something.

I say dont let it get over 75C, you can max it to 85-90 but then again, it will limit the lifespan.

Justintime · 17 Jun 2012 at 14:29

karan538 said:
Day to day basis I dont think you should go over 4.6/4.7 unless you have great cooling which keeps the temps down.

Keeping it 5ghz on a regular clock will limit the lifespan and you should only to it if you want to benchmark or something.

I say dont let it get over 75C, you can max it to 85-90 but then again, it will limit the lifespan.

I've had the odd chip do 5GHz at 1.35-1.4v stably, the heat output was nothing majestic, so it really depends on how good your silicon is: Low volts usually equate to an easily cooled chip. Most chips will require more than 1.4 for 5Ghz but done right it won't limit the lifespan much at all. Its those silly people pushing 1.5v+ through their chip on air that usually pop their chips clogs, even on water or phase those vcores are gonna hurt.

Even if you max out at 85C in LINX or such it won't do much to the overall lifespan, avg temps will be much much lower, not much higher than a lower clocked chip and again, with voltage offsetting it'll lower vcore at lower loads and i doubt the chip life will be degraded by anything in the magnitude of years. If done sensibly, an overclock will usually last out the usable lifetime of the chip, i know my old T-Bird at 1.8Ghz 1.85v cooled by an Alpha PAL 8045 still works in a friends garage machine, its fine for XP and music but i'd never use it again