Those of you with OcUK OEM 2700K Official OC Results thread!!

Bluntwrapped · 18 Nov 2011 at 17:00

fowler002 said:
CPU vcore 1.425v its the RAM voltage which is 1.5v (don't confuse this with the CPU vcore).

I'm not. I'm just going with what Intel says is OK. On another forum a tech support dude from Intel has been quoted saying 1.5v is OK. I wouldn't run my cpu at 1.5v 24/7 but for the sake of discussion/arguement there we go

Oh and check that image it's taken from the 2nd Generation Intel® Core™ Processor Family Desktop Datasheet, Vol. 2.

bulldog147 · 18 Nov 2011 at 17:51

No, you get it wrong, that for ram voltage, not the cpu volt. Intel never say it ok at 1.5v ! because if they did actually say 1.5v is ok for everyones to use. Then million of cpu's will be dying if using 1.5v in 24/7 in use and I cannot see intel replaced all million of cpu's due to their within spec of 1.5v. Intel always say below 1.35v is safer max.

You can try set your vcore 1.5v and see what happen after 1 month and Intel will not replaced your cpu because you use 1.5v.

gareth170 · 18 Nov 2011 at 18:19

bulldog147 said:
You can try set your vcore 1.5v and see what happen after 1 month and Intel will not replaced your cpu because you use 1.5v.

ocuk would replace a dead cpu but thats not the point really...

Bluntwrapped said:
Hmm.. if this is true why would OCuk post this? Maybe the degrading is from the memory voltage being set too high? If you look at Intel's specs they actually rate the 2500-2700k at around 1.5v max

that 1.5200 is the cpu vid max range, it's not about vcore.

http://www.alcpu.com/forums/viewtopic.php?f=63&t=892
VID is not the same as VCore. VCore is the actual voltage the processor is being fed by the motherboard.
VID is the recommended voltage the processor should be running at at the current power state, this is a predetermined value, programmed by the CPU manufacturer. When the processor settings, especially the VCore is kept at default settings, Core Temp will provide a good approximation of the real VCore, but if you change the setting using the BIOS or by other means, Core Temp's VID readings should be ignored.

Bluntwrapped · 18 Nov 2011 at 19:10

bulldog147 said:
No, you get it wrong, that for ram voltage, not the cpu volt. Intel never say it ok at 1.5v ! because if they did actually say 1.5v is ok for everyones to use. Then million of cpu's will be dying if using 1.5v in 24/7 in use and I cannot see intel replaced all million of cpu's due to their within spec of 1.5v. Intel always say below 1.35v is safer max.

You can try set your vcore 1.5v and see what happen after 1 month and Intel will not replaced your cpu because you use 1.5v.

This is all a bit of a generalisation and I'm quite aware 1.5v is the recommended ram voltage. If Intel say 1.5v is the highest in their CPU specification then I'm pretty sure they would honor the warranty. I'd be interested to find out how many 'degraded' units are caused by insufficient cooling for the volts fed, and if 1.35v is just a safe zone. Intel aren't mind readers - they don't know what cooling will be used and therefor it would be irresponsible to say 1.5v is ok for everyone.. If you have some ridiculous way of keeping the CPU cool, then maybe you could get away with it... The main problem I see is underestimating just how much cooling is required and running things like IBT because a forum says so. It has been noted that 1.4v runs hot even on a 360mm rad so you can imagine what would be needed for 1.5.

gareth170 · 18 Nov 2011 at 19:17

Bluntwrapped said:
If Intel say 1.5v is the highest in their CPU specification then I'm pretty sure they would honor the warranty.

where does it say 1.5v max vcore?????

all i see is VID range. which doesn't mean vcore

Bluntwrapped · 18 Nov 2011 at 19:19

gareth170 said:
ocuk would replace a dead cpu but thats not the point really...

that 1.5200 is the cpu vid max range, it's not about vcore.

True enough.. A dude on another forum has quoted a reply from Intel support confirming 1.5v though.

gareth170 · 18 Nov 2011 at 19:25

Bluntwrapped said:
True enough.. A dude on another forum has quoted a reply from Intel support confirming 1.5v though.

thats only mean the cpu vid range, so at vid 1.5200 you can get the vcore way upto 1.9v+

it's the vcore thats is the real voltage

Bluntwrapped · 18 Nov 2011 at 19:32

Everywhere I look says 1.5v is the upper limit. Not that many are brave enough to push so far but it seems like this is the general consensus.

gareth170 · 18 Nov 2011 at 19:35

i sure u they don't mean vcore....

your confusing vid with vcore

it's the vcore is the real voltage

Bluntwrapped · 18 Nov 2011 at 19:57

Well good to know but there still is quite a bit of speculation on the subject.. someone saying don't go above 1.35 another saying 1.425. If there is variance in opinion where are the facts?

gareth170 · 18 Nov 2011 at 20:04

Bluntwrapped said:
Well good to know but there still is quite a bit of speculation on the subject.. someone saying don't go above 1.35 another saying 1.425. If there is variance in opinion where are the facts?

intel say don't go above 1.35v

ocuk say don't go above 1.425v

i would say 1.35v max

debs3759 · 19 Nov 2011 at 01:11

I'm not sure yet whether I have a faulty processor (integrated memory controller) or motherboard, but this is my first attemept with 8GB RAM in single-channel mode.

Maximus IV Gene-Z
8 GB Kingston HyperX 1600MHz

4.6 GHz (46 * 100 MHz) with 1.28V Vcc

I'm getting the cpu and board tested tomorrow to see which his faulty. I really hope it's not the CPU coz so far it is pretty amazing!

axer · 19 Nov 2011 at 09:34

@ debs3759

You need to change 'Auto' to 8 threads, then watch your temps rise/system crash due to insufficient voltage.

Geeman1979 · 19 Nov 2011 at 09:43

And also set the stress level to maximum.

wannabedamned · 19 Nov 2011 at 09:56

gareth170 said:
intel say don't go above 1.35v

ocuk say don't go above 1.425v

i would say 1.35v max

If you buy from OCUK, and they say 1.425v, I would go with 1.425v. As you could surely RMA any processors with problems as you've used the OCUK specifications

gareth170 · 19 Nov 2011 at 10:17

wannabedamned said:
If you buy from OCUK, and they say 1.425v, I would go with 1.425v. As you could surely RMA any processors with problems as you've used the OCUK specifications

i guess so,

but i bought oem which only has 1 year warranty and in my luck if i run it at 1.425v it'll most likely die just after the warranty ends.

tipes · 19 Nov 2011 at 12:05

gareth170 said:
i guess so,

but i bought oem which only has 1 year warranty and in my luck if i run it at 1.425v it'll most likely die just after the warranty ends.

Quite possibly - murphys law and all that lol

scotslad · 19 Nov 2011 at 17:53

How would they know that youve been overVolting slightly above the so called whatever they call a safe limit anyway ?

Its probably a simple answer to this question but something Ive often wondered about, hmmm ?

debs3759 · 19 Nov 2011 at 18:32

axer said:
@ debs3759

You need to change 'Auto' to 8 threads, then watch your temps rise/system crash due to insufficient voltage.

Thanks. I thought I had read somewhere that Auto set it to 8 threads, but I did what you said and had to up the voltage to 1.3V. It didn't get any hotter, but it did fail at 1.28V

Passed 5 tests at maximum, and then (second image) enabled Extreme Test Mode and passed the same 5 tests with the same settings. Any idea why the performance is so much worse in Extreme mode?

As it turns out I can't get the processor and motherboard checked until Tuesday (and then have to leave it overnight) I'm going to have to see how far I can get it on air without temps going over approx mid 70's under the same stress testing (I won't try any more than that until I have a fully working system to put under water). Should manage to get that done some time late tonight.

gareth170 · 19 Nov 2011 at 18:49

scotslad said:
How would they know that youve been overVolting slightly above the so called whatever they call a safe limit anyway ?

Its probably a simple answer to this question but something Ive often wondered about, hmmm ?

if u buy from ocuk it doesn't matter..

http://forums.overclockers.co.uk/showpost.php?p=18190492&postcount=1

These are just guidelines we recommend you follow, if you want to push more voltage through your CPU's then just be aware they could die on you. Your warranty is un-affected and we will honor any CPU's that die, we just won't ask questions as to how you killed them.