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***The Official Core i7 Overclocking Thread***

Just OC'd my C0 to 3.86Ghz with a vcore of 1.312 with a bus speed of 193. I can drop the core down a couple of clicks if I go 190. Temps are always 71 +-2 at load.
Been running Prme95 for over 2 hours now, no probs. You reckon it's stable for batch video encoding now and are the temps safe? It's got a Scythe Mugen 2 on it.

i73-85.png
 
UberTiger said:
Just OC'd my C0 to 3.86Ghz with a vcore of 1.312 with a bus speed of 193. I can drop the core down a couple of clicks if I go 190. Temps are always 71 +-2 at load.
Been running Prme95 for over 2 hours now, no probs. You reckon it's stable for batch video encoding now and are the temps safe? It's got a Scythe Mugen 2 on it.
Click to expand...


Get it prime stable at 8hrs

75c and below is the sweet spot.
 
Hi mate/ you sure you can't put your volts down more.
I'm running at 3.8 with same steppings. stable with lower volts and temp. ?
21 x 181.. 1.216v temp 59 60 64 61 prime stable at 8hrs
 
up2nogooduk said:
Hi mate/ you sure you can't put your volts down more.
I'm running at 3.8 with same steppings. stable with lower volts and temp. ?
21 x 181.. 1.216v temp 59 60 64 61 prime stable at 8hrs
Click to expand...

Yeah

More than likely.

Will tweak in the week.

I generally pump vcore in test and draw back:)

@3.6ghz temps are 58c full load

4ghz needs 1.475 to boot and 1.5 to be prime stable

3.6ghz for me is fine 24/7 nice balnce of vcore/temps and at a cost of 100 quid :)
 
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easyrider said:
Get it prime stable at 8hrs

75c and below is the sweet spot.
Click to expand...

Ahh, fair play. I'll give it a good burn in tomorrow then and see how it goes while I'm at work.

Edit: Just been doign some handbrake encoding and the temps are varying from 55 - 68, so better than the prime test. Will be interesting to see if they drop more if I can lower the V as below.

up2nogooduk said:
Hi mate/ you sure you can't put your volts down more.
I'm running at 3.8 with same steppings. stable with lower volts and temp. ?
21 x 181.. 1.216v temp 59 60 64 61 prime stable at 8hrs
Click to expand...

You taking about my setup? If so I think I probably could drop the voltage. I had it at 1.2something when at 20*190 (3.80Ghz). I'm not sure I have a have the option for a 21 multiplier. Will have to check. It would be nice to get the temps down. Will mess with it a bit before I go for another long prime session.
 
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Same here, 4.0 needs way to much volts on this stepping.
The DO stepping uses a lot less volts. but @3.8 stable, compared to me running it @4.0 in games, made no differents whats so ever for me.
so 3.8 on air the antec 1200, works a treat for me :)

sey7ht.jpg
 
UberTiger said:
Ahh, fair play. I'll give it a good burn in tomorrow then and see how it goes while I'm at work.



You taking about my setup? If so I think I probably could drop the voltage. I had it at 1.2something when at 20*190 (3.80Ghz). I'm not sure I have a have the option for a 21 multiplier. Will have to check. It would be nice to get the temps down. Will mess with it a bit before I go for another long prime session.
Click to expand...

What motherboard you got tiger ?
 
Easy, what does your loop consist of mate?

You've definitely got a great deal with your kit mate, £100 for one of these chips is a steal, even if it is a C0..

The vCore you're using for 4GHz is normal for that stepping iirc.
 
DavyBoy said:
Easy, what does your loop consist of mate?

You've definitely got a great deal with your kit mate, £100 for one of these chips is a steal, even if it is a C0..

The vCore you're using for 4GHz is normal for that stepping iirc.
Click to expand...

I'm testing at 3.8ghz now and dropped the vcore a bit also playing with 1800mhz on my patriot ram.:cool:

Its the old Swiftech Apex Kit mate.

Apogee CPU Water-block,

MCR220 Radiator

MCB-120 R2 "Radbox",

MCP655 pump,

MCRES Micro Reservoir,

Had it for over 3yrs and its never not been able to cool the chips before they max out.:D

Love the s775 holes on the Asus P6T's;) I'm to lazy to change my block.Looks like I don't have to too.
 
Yeah, theres a few X58 boards that still have the 775 mounting holes, it's really handy for guys like yourself who've came from a Core2 based rig, as it saves you having to buy new blocks or mounting brackets..

It's really good that your old kit is still able to cope with current processors though.

And you're a lucky sod being able to push your 1600MHz RAM to 1800MHz, my Corsair Dominators won't go past 1600MHz, I've tried and tried to o/c them, but they just don't like being clocked at all.

Not even to 1680MHz CAS9 with vDIMM at 1.7v.. :(

Gonna have to buy some 2000MHz stuff soon I think.
 
Nice going easy, but it does show the limitation of the co chips mate, your watercooled temps are as high as my do on air at 4.0ghz, ive acually got mine down to the high 60's through using 2 x 2000 rpm fans on my TRUE black, far to noisy even for me and im half deaf. All the same matey, welcome to the i7 4ghz owners club.;)
 
I haven't even put mine here but i don't fancy 8hrs of prime to much folding time lost :D

I might have a go next weekend as i am having my little cooling upgrade and will not be folding most of the day so might aswell do it then.
 
DavyBoy said:
Yeah, theres a few X58 boards that still have the 775 mounting holes, it's really handy for guys like yourself who've came from a Core2 based rig, as it saves you having to buy new blocks or mounting brackets..

It's really good that your old kit is still able to cope with current processors though.

And you're a lucky sod being able to push your 1600MHz RAM to 1800MHz, my Corsair Dominators won't go past 1600MHz, I've tried and tried to o/c them, but they just don't like being clocked at all.

Not even to 1680MHz CAS9 with vDIMM at 1.7v.. :(

Gonna have to buy some 2000MHz stuff soon I think.
Click to expand...

Cheers mate,

I think I can lower the vcore somewhat @ 3.8ghz but the ram seems happy enough at 1800MHZ

Love using old cooling kit for top end stuff. Retro with bite :D
 
Marine Iguana said:
I haven't even put mine here but i don't fancy 8hrs of prime to much folding time lost :D

I might have a go next weekend as i am having my little cooling upgrade and will not be folding most of the day so might aswell do it then.
Click to expand...
Mate, is folding hard to set up and run? Ive read about it and found it pretty interesting, my pc tends to be on most nights from 5.00 to 11.30 ono, i know that folding can be demanding system wise, if a rig can run folding without error, its pretty stable, also folding is a beneficial use of a a system, as opposed to passing the time with a mind numbing game. Interested in it and how easy it is to setup and run.
 
setter said:
Mate, is folding hard to set up and run? Ive read about it and found it pretty interesting, my pc tends to be on most nights from 5.00 to 11.30 ono, i know that folding can be demanding system wise, if a rig can run folding without error, its pretty stable, also folding is a beneficial use of a a system, as opposed to passing the time with a mind numbing game. Interested in it and how easy it is to setup and run.
Click to expand...

Mine is on 24/7 since i built it and hasn't blinked that's using 100% CPU powahh :D

It is so easy to use now as they have released a new client so you don't need to run Linux in a VM plus windows is now faster than Linux shocker or what :eek:

Once i have better cooling i will be pushing for more speed i just dont have enough ;)
 
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