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

bulldog147 · 1 Nov 2011 at 21:26

axer, just sent it back to ocuk and ask for other oem chip to be replaced - maybe your luck of the draw will come to you. Good job I did cancel the order as I cannot be 100% sure if it will clocked 5GHz and would be waste of my money! Glad to kept my current 2600K at 5GHz

bulldog147 · 1 Nov 2011 at 21:30

I just found on ocuk site that metion "The OEM 2700k is a very early silicon batch of processors which is seeing incredible overclocking results, don't miss out - BUY NOW!" and also notice Retail version doesn't come with "SR0DG MALAY Stepping" (only the one with OEM)

555BUK · 1 Nov 2011 at 21:33

axer said:
Indeed, was a bold statement to make considering he'd only tried two at the time from what I gather!

I'm a bit dubious about putting more voltage in to it due to the temps being so high. I'm a little confused as to why they are so high considering I went all out, bought the IC Diamond paste, H80 cooler running (at full speed) and have a HAF-X chassis with the additional top fan (comes with just the 1 by default) so should have plenty of air flow....

Temps do seem high. Have you tried reseatig the heatsink, just incase contact is bad? Perhaps also try another heatsink (if you have one), because the H80 may also be defective.

axer · 1 Nov 2011 at 21:37

555BUK said:
Temps do seem high. Have you tried reseatig the heatsink, just incase contact is bad? Perhaps also try another heatsink (if you have one), because the H80 may also be defective.

I have indeed, have also tried changing the layout to pull air from the back into the case rather than my normal preference of pushing hot air out to the back which is what I used with my Antec 620.

p.s. when fitting the H80 I could hear the liquid inside sploshing around, is this normal as both my previous Antec 620 and H50 didn't do this.

bulldog147 · 1 Nov 2011 at 21:37

Count Dracula say to his wife "I just pay for my oem chip to get 5GHz with ease, Intel should give me 5GHz?" and his wife countess dracula reply "No, you pay for 3.50GHz oem chip!, not the 5GHz!"

Geeman1979 · 1 Nov 2011 at 21:43

axer said:
Hmm so far things arent looking too good for me

Bought a 2700k OEM and a Corsair H80 to replace my pre-overclocked OcUK 2500k bundle @ 4.6Ghz. Started off just changing the multiplier to 50 and the vcor to 1.425v with the intention of dropping this if everything was ok.

I managed 5-10 mins of Prime 95 before the system will BSOD and Coretemp by that stage is already registering in the region of 79-82degC....

Any bright ideas?

Do you have CPU PLL Overvoltage: Enabled? Also juggle your settings around a little to try find the right balance. Though it does seem your CPU is getting a little warm.

glowball · 1 Nov 2011 at 21:46

My chip comes tomorrow, hope it's a good specimen, better be as I've just seen them cheaper elsewhere admittedly without a free game worth £40.

garsands · 1 Nov 2011 at 21:52

axer said:
......to replace my pre-overclocked OcUK 2500k bundle @ 4.6Ghz.

Till OC offer this for the 2700k @5Ghz I am staying clear. if Gibbo say all OEM chip can get 5GHz with ease then it should not be long for a bundle to be put up to buy as I am sure they would sell very well.

I did ask Gibbo if a 5Ghz bundle will be on sale but he could not have seen my post.

At the moment this would be a £500 gamble that I am not going to take.

axer · 1 Nov 2011 at 21:54

going to mess around and try a few things such as swapping back to MX5 paste, changing back to my Apache fans etc - will keep you all posted!

bulldog147 · 1 Nov 2011 at 21:56

garsands said:
I did ask Gibbo if a 5Ghz bundle will be on sale but he could not have seen my post.

I did ask him as well on other post but I think he too busy and might not see it yet.

axer · 1 Nov 2011 at 22:23

For those who are interested, the first thing I've done so far is change the air flow on the H80 from sucking air in to blowing air out, that's given me a 2-3degC drop resulting in temps of 80degC for 4.8Ghz @ 1.38v in BIOS (1.408v in CPUz).

Now to change the CPU compound!

p.s. does anyone know what the rated CFM on the HAX-F 200x30mm fans are, they seem crap so was looking at the "CoolerMaster MegaFlow Mega Flow 200mm" which is apparently 110cfm @ 700rpm, sounds good but looks the same as the fans in the HAF-X already?

Gibbo · 1 Nov 2011 at 22:48

bulldog147 said:
So, are you saying Gibbo is lying then ? As he metion 500 cpu's can do 5GHz easy!

Why are you putting words into my mouth Bulldog?

Where have I said all 500 chips will do 5GHz?

What I said is its look like **MOST** will do 5GHz.

As it appears your trying to accuse me of saying something else I will say it again it is looking like most will do it.

I also want to add its looking like most will do it on the basis the CPU has good cooling, by this I mean keeping the CPU ideally under 60c with load and certainly no higher than 70c, otherwise heat is certainly going to be a determining factor.

Also motherboards can greatly effect overclock, OcUK has not yet had time to look into which motherboard yields the most stable overclock, the Asrock board boostjunky has seems a good one as does the Asus Maximus though that is expensive. We did test with an Asus Sabertooth and this board caused issues wheras the Maximus did not.

So just to make it clear that as long as your CPU has good cooling along with a decent clocking mainboard and someone who knows whay they are doing I do feel **MOST** of these will do 5GHz with 1.40-1.45v with a very good air or water cooler.

But I have not said all 500 will do 5GHz, if I have said this show me where I've said it and I will ammend it because I don't remember saying as such and if I did it was no doubt more in excitment than actual fact.

Also lastly might I add OcuK are not guaranteeing any kind of overclocks on these CPU's or any other as not all CPU's have the same OC abilities, some clock better than others this is a known fact. However this is a good batch were building systems rated at 4.8GHz which we have to be confident will not fail.

When we get time we may look into researching a 5GHz bundle but such development could take days/weeks and as were experience record breaking sales at the moment all time is on getting systems orders built, tested and orders despatched.

Gibbo · 1 Nov 2011 at 22:50

JediFragger said:
Nah, I wouldn't swap. I only swapped due to going to 5Ghz and a platform with a longer life in it than my S1366

How is yours going m8?

Gibbo · 1 Nov 2011 at 22:53

axer said:
For those who are interested, the first thing I've done so far is change the air flow on the H80 from sucking air in to blowing air out, that's given me a 2-3degC drop resulting in temps of 80degC for 4.8Ghz @ 1.38v in BIOS (1.408v in CPUz).

Now to change the CPU compound!

p.s. does anyone know what the rated CFM on the HAX-F 200x30mm fans are, they seem crap so was looking at the "CoolerMaster MegaFlow Mega Flow 200mm" which is apparently 110cfm @ 700rpm, sounds good but looks the same as the fans in the HAF-X already?

You need to try and bring your temps down too 70c, either turn your heating down

or do as you suggest higher CFM fans.

Also make sure your CPU is getting 1.41-1.42 under actual load and not suffering Vdroop which some motherboards cause.

axer · 1 Nov 2011 at 22:54

Gibbo what case and what fans were you using on the OcUK Extreme cooler?

555BUK · 1 Nov 2011 at 22:56

axer said:
p.s. does anyone know what the rated CFM on the HAX-F 200x30mm fans are, they seem crap so was looking at the "CoolerMaster MegaFlow Mega Flow 200mm" which is apparently 110cfm @ 700rpm, sounds good but looks the same as the fans in the HAF-X already?

To be honnest, HAF-X cooling with the stock 200mm fans is great. You have plenty of space and plenty of airflow in there to keep an i7 @ 5GHz nice and cool. With temps hitting 80 degrees I would think the H80 is either incorrectly mounted, at fault, or insufficient for the task. Don't waste your money on new case fans unless your intention is to make the HAF-X quieter.

Gibbo · 1 Nov 2011 at 23:01

axer said:
Gibbo what case and what fans were you using on the OcUK Extreme cooler?

Fans were Sanyo denki and rather loud. Loud fans kept CPU in 60-65c range, quieter fans your looking at 68c-75c and a single fan 80-85c. So dual fans and something reasonable seems best choice as I'd not really want to run my CPU above 80c.

No case on a bench. The motherboard had no cooling and have to say it felt very hot so I'd advice a fan cooling mainboard area if your using a watercooling setup.

JediFragger · 1 Nov 2011 at 23:01

Gibbo said:
How is yours going m8?

Hi m8

Doing 4.7 no probs at 1.328v on air (Noctua D14) but it looks like the mobo is holding me back, when I push it higher it won't complete a boot. It's my own fault for cheapening out on the motherboard. I should have gone for something like the AsRock

axer · 1 Nov 2011 at 23:01

555BUK said:
To be honnest, HAF-X cooling with the stock 200mm fans is great. You have plenty of space and plenty of airflow in there to keep an i7 @ 5GHz nice and cool. With temps hitting 80 degrees I would think the H80 is either incorrectly mounted, at fault, or insufficient for the task. Don't waste your money on new case fans unless your intention is to make the HAF-X quieter.

Hmm my feeling was that maybe the front intake isn't sufficient as it doesn't feel like there's large amounts of air movement and additionally my ATi HD5970 seems to give off a fair amount of heat despite:

200/230mm (not sure which) front intake
200mm side intake
2x 200mm top exhausts

Prior to playing with this 2700k I was seeing low to mid 70's with my 2500k @ 1.345v

Gibbo · 1 Nov 2011 at 23:04

JediFragger said:
Hi m8

Doing 4.7 no probs at 1.328v on air (Noctua D14) but it looks like the mobo is holding me back, when I push it higher it won't complete a boot. It's my own fault for cheapening out on the motherboard. I should have gone for something like the AsRock

The difference between a cheap and decent board when clocking can be huge, you cheap skate, thats what you get for buying a cheap B-grade MSI board.