was bored. So I wanted to see how much can I OC it with my stock cooling (my core i7 920)



That's backend set @ 184MHz times 20.0 multiplier! 3.68GHz off a 2.67GHz stock CPU
stopped there because it was already peaking ~63C

did some super pi tests:
@3.68GHz:
4M took 56 seconds

@3.37GHz (that's totally stable @ 50C max)
32M took 10m 49s
(took me over ~15m on 2.67GHz)


fun fun fun

I might get some proper cooling so I can OC. I really wish I was able to calculate 32m decimals for PI in 11 min

Can you really tell the difference?

I didn't think I would since i7 is pretty powerful, but even just running Photoshop - filters are run much more quickly

You don't OC a stock cooled i7. You are doing it wrong, very very wrong.

I don't get it

@Mark. You don't OC a stock cooled anything. It's a recipe for shit to hit a fan.

Ah yes, Rob. Thank you for the major correction.

I'm telling you. this shit is amazing. _even_ with stock unit.

I might buy a new cooling unit, when I cba

This is awesomely cooly awesome. I wouldn't dare do this myself though - I'm slightly paranoid at the risk and everything.

Next you'll be buying liquid nitrogen and liquid helium and trying to break the world record!

What risk?

That processor alone costs more than your family's monthly income.

Somebody knows how to turn a highly inaccurate guess into an attempted insult.

@Maarten - my processor works fine without overclocked. They all do, there is really no need to overclock except for high-end things and for kicks. They were programmed to not run that fast for a reason, and there is no reason to navigate around the programming when you don't need to.

I never said they didn't, I'm only saying there's no real risks to it. Only risk is it running too hot, and you would notice if it did.

to be honest, making a base i7 system now is surprisingly cheap... and the new mid-range chipset coming out with the new i5 processors soon will be the new standard core 2 due - with pricing to match!

I was going to mention that they were only ~$300 each for the i7 processor alone, but I was pretty sure I'd be ripped to shreds.

What risk? I do not know alot about overclocking, but if done properly and slowly, you can get the maximum out of your processor without burning the motherboard. No risks.

Quite a contradictory post.

No. "I know nothing about OC'ing if done properly......" would be contradictory. But I didn't say that. I said that I know very little of it, and the presented knowledge was that "very little".

If
Properly
Burning your motherboard.

But no risks?

There's no risk when crossing a road properly. That doesn't mean it's a good idea to walk out onto one with your eyes shut and headphones in blasting techno.

Similarly, provided you don't go too far too fast and monitor your temps for a few days after overclocking (Just in case you do get a temp. spike whilst running a load of programmes or doing some benchmark testing or something) then there's no more risk involved than in going for a walk.

I agree with your post, Rob (for once) except for this:



Technically, there actually are risks when crossing a road. Any road. Just because no matter how big it is, almost always nothing bad happens (per person) doesn't mean that the risks aren't there . You can't argue that, sonny boy.

However if I tried to overclock it would be walking blindfolded with techno speakers blasting, so that is why I'm not going to try.

Nice, but core i7's can easily go past 3ghz without being on "turbo mode" Heck, if if a Phenom II can do it, then i7 can do it blindfolded.

And you should seriously think about liquid cooling if you like your overclocked procs

Liquid cooling is overpriced and unecessary. Just get a decent heatsink.

wat

no, its the ninja of cooling components, silent and awesome.

You do realise that the water also has to be cooled, right? And guess what they use for that, oh yes, fans.

I just assumed it used electricity.

Liquid cooling is used only because it moves heat away from the heat-sink faster than the normal air flow created by a mounted fan, but now with the large dual fan mounted heat-sinks, getting a $20-30 cooling unit can go a long way to the $80-100 or so you need to spend on the small closed liquid cooling units, and most cases they preform exactly the same.

There is a risk, but if you just go slow you don't need to even enter the danger area. That's even with standard stock gear.



no, because once you change any clock the i7 PDU automatically goes into turbo mode. I just used the built in BCLK program which means I got from 2.67GHz to 3.67GHz on 1 reboot.

Using the manual OC and knowledge of the processor (which I don't really have) people reached around 4GHz stable with 920 and over 4.5GHz stable with the 965 i7 EE. But considering I got to the speed of Intel's fastest CPU ever (P4 67x - 3.8GHz stock clock), with stock cooling and 1 reboot, makes this CPU pretty amazing.

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Now playing: AMD Phenom II Overclocked to 6.5GHz - New World Record for 3DMark

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Yes, everybody can afford a cpu cooler that approaches absolute zero. The P4 was the fastest stock clock speed, and in the day and age where +clock speed meant +performance (intel-wise) it wasn't uncommon to see those type of speeds.

And a question I've had that kept me from switching to it, after you overclock an i7, can you still activate turbo mode? I always thought that it would lead to problems with power consumption and avoided it.