Technical > Overclocking / Modding > [OC] safest OC for a 2500k, on a Asrock p67 extreme4 gen 3?

[OC] safest OC for a 2500k, on a Asrock p67 extreme4 gen 3?

A 4.5GHz. overclock should be no problem with that cooler.

reply to me1212
yea, 4.5 should be a breeze.
OC it and bench it.
»majorgeeks.com/Prime95_d4363.html

Check your temps with Real temp and voltage with CPUZ

»www.cpuid.com/softwares/cpu-z.html
»www.techpowerup.com/realtemp/

if you want to do some comparisons or need a good guide lokk here.

»clunk.org.uk/

PS- when I overclocked mine I didnt go right to 4.5 I went up gradually (I followed Clunks guide)
Then I learned about offset voltages and am now running at +0.60 VCore which gives me 1.02 V at idle and 1.30 V at full load.(on air) So the benefits with that are obviously less stress on CPU and less heat all around

Hope this helps
--
Last night I saw a naked cowgirl, she was floatin across the ceilin

reply to me1212
You are running outside spec, so safe is relative, but what you want to watch is temps and voltage. We can all give a ghz number, but if the cooler is seated wrong or something, game over as far as safe.

So stay under IMHO 85C on the cores, myself 80C.

I would keep voltage under 1.45 myself at the most.

reply to me1212
Ok, thanks for the info and links guys! IS there any guide made specifically for the 2500k, or 2600k since they are so close in how they work, for ocing? I've googled some and some say for 4.5 no more than 1.2V is needed, some say use no less than 1.3. some say leave the auto voltage on some say off. Microcenter has a nice over clocking warranty, so I hear, but i'd rather not have to use it and just do it right the first time.

No one setting works for all chips unless it's WAY high, as every chip is different.

»www.overclock.net has tons of info

2500k and 2600k overclock the same way...

reply to me1212
Have a look at the guide I posted above
clunk.org.uk/
Its for 2500K & 2600K
Its a good guide that has helped many
But like matt5 says, there is no one setting for all.

Also the link he posted is a good site for overclocking as well.
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Last night I saw a naked cowgirl, she was floatin across the ceilin

reply to me1212

20min of prime is nothing, you also need to make sure you did round off checking, I would for a final run, run at least 12hours of prime.

reply to me1212
Well temps look good and so does voltage But like Matt5Z says prime it for a little longer. I donno about 12 Hrs, that might be necessary and it might not. I have read in a number of places if it passes for 2 hours its all good. But i guess a 12 Hr run wouldnt be bad either

PS- after its stable and your satisfied look into offset voltages. Trust me, its the way to go. Why run it at 1.3V all the time if you dont have to?
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Last night I saw a naked cowgirl, she was floatin across the ceilin

reply to me1212

reply to bobbagels

reply to DKS
1.53vcore for a 32nm processor is extremely high. Intel states of maximum of 1.5vcore for their 40nm processors. However, they used the same number for their 32nm offerings which leads me to believe the actual safe vcore for the 32nm SKUs should be much lower than 1.5v If you run your processor at this type of voltage over a sustain period of time be prepare for degradation or damage to the processor.

It's the same if you run the CPU to the thermal limit, but lol he does not believe it.

OP stock voltage varies by the chip, so we can not tell you.

The evidence is in not (as it would seem) so common sense and...

I gave you charts and everything... also less common sense, as temp goes up, resistance goes up too, you need more pressure (voltage) to overcome the increased resistance, and that increases electromigration, that decreases the time before the CPU fails.

for more info
»en.wikipedia.org/wiki/Electromigration

To use Black's equation, the component is put through high temperature operating life (HTOL) testing. The component's expected life span under real conditions is extrapolated from data gathered during the testing

So to speed up killing the chip, they run it hot. What more could you need.

Now I am sure you will say... but intel but the throttle at a safe temp blah blah.

Intel also speced the chip to run what 3.7ghz @ like 1.24 volts? One can assume the throttle is nothing more than a fail safe for a fan failure (after all it would suck for a server to go down, or a chip to fry cause a $5 fan died). One time throttling won't kill the chip, extended runs at full temp will hurt.

Oh ya your car likely has a fuel shut off over the redline, I dare you to drive it at that RPM non stop bumping the fuel shut off.

Note I am not responsible for any damage you do by running the car at red line.

Run it as you like, but stop telling other people that super high volts are okay. hell head over to »www.overclock.net and ask them about your voltage and temps 90% of those guys will say too hot... and that whole site is about overclocking and pushing.

OP your choice, 99% of people unless doing a suicide run (yep that is what it's called) will not over volt that much and over temp that much. At least not for 24/7 usage.

reply to Chrno
1.5v is the max intel says wont rip apart your cpu(well something to that effect), 1.35v is what they recomend you limit it to, or so i've read. hence why I try to keep mine under 1.35V.

reply to me1212
I've noticed that whenever I use offset, unless it adds voltage, it causes errors in prime 95 after about 20 min, always on core 0. is that supposed to happen? if I dont use offset I get voltages of 1.256-1.272 most of the time, but can spike up to like 1.32V for a second or two then drop back down. and trying to used fixed voltages always causes BSOD not matter what settings I use with it, but I think that may have something to do with my wireless card, always disables it on next start up when that BSOD happens.

Am I doing something wrong or is my chip just one that needs more voltage?

What you are seeing is vdroop, Say you set 1.3, under load, you will see more like 1.25, this is because of as I said vdroop, you are setting the MAX voltage it will *ever* hit, not the load voltage, when the cpu comes on and off load you get spikes as the VRM can not adjust the voltage in .000000000000000000000000001 seconds...

If you are getting errors, you likely need more vcore, core 0 is more hungry for voltage than the others... welcome to overclocking.

Like I said, everyone is saying o I get this that... it all depends ON THE CHIP. Yours might be golden, or it might be meh, or suck for top end overclocking... you will find out as you try to overclock.

1.27 is still pretty low and you have room to bump it up.