OCUK guaranteed 4.8GHz 2500k

Clum · 22 Jul 2011 at 19:21

Who's bought one of these? Did it reach 4.8 on your setup?

Reason for asking is that I went for one as a last resort, after going through 3 2500's already looking for one which will do 4.8+ on 1.4v or under. Let me say right now that as this chip is intended for a dedicated flight simulator X rig, I'm one of the very few who actually do need the high speed, so isn't just a case of wanting 4.8+ for e'peen rights

Anyway, I ordered one of these "guaranteed" chips after some deliberation, and figured that as my core components are otherwise almost identical to the OCUK testing setup, there was a very good chance that it would also hit 4.8 on my machine. This was not to be.

I'm not looking for OC'ing help as I guarantee you that I've tried every combination of every variable in BIOS, as well as well as with different RAM/GPU, but rather just want to know if anyone else is in the same boat with regard to these chips? I'm toying with the idea that my mobo might be the problem, but after borrowing an i7 last night which did hold a 48 mult without any problems on my board I'm not so sure. The highest mult it will remain stable on is 45. 46/47/48+ all fail prime/linx within two minutes with stop code 101 (vcore). This is on 1.4 which is both my personal limit at the moment, as well as the stated OCUK limit for testing.

The other thing I wanted to ask anyone who's bought one is did you receive an OEM or a retail CPU? The product page says it's an OEM chip, yet I received a retail one (although opened). For this reason I'm concerned that I may have been sent the wrong processor in some kind of mixup, perhaps having someone's RMA sent to me by mistake. On the other hand it could be a brilliant chip that they kindly picked out for me due to my dispatch being a day late, and it is just my mobo that doesn't get on with it. Of course I've sent them a message about this all, but have yet to receive a reply.

Right, that was all probably rather long winded for what really is a simple couple of question for anyone who has bought one of these. Sorry :cool:

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Finally, I hate each and every one of you who has bought a sandy and found it to do 4.8+ out of the box under 1.4v first time. Even more I hate those of you who will never actually use that speed, but not as much as the ones who sit with a god-like chip at stock speeds! Lock up yo houses, lock up yo cases cause I'm coming for you motherclockers!

koooowweeee · 22 Jul 2011 at 19:25

you must be unlucky to get 3 average chips

rather than keep wasting money why dont you run it with higher volts and if it breaks either send it back or buy another. in the long run if you keep getting average chips and selling them you could have bought one with the money you keep wasting

Clum · 22 Jul 2011 at 19:33

Certainly one idea I could think about. Perhaps this is just lady luck balancing things out as the only reason I have decided on a rig dedicated to FSX is that I won the money to cover it in the casino last month!

Another way of looking at it (and this is what's niggling me) is that it may be the mobo, and for all I know all of these chips might have been brilliant. This is why I want OCUK to confirm that they 100% did test the chip properly and that I was sent the right one. Messaged them yesterday afternoon but still waiting to hear any reply. I'm tempted to just order another board and either RMA or sell my current one based on what the outcome is. Tough decision though as it'll mean probably another 50-100 loss.

koooowweeee · 22 Jul 2011 at 19:43

what volts did they say the chip would do 4.8 at?

bulldog147 · 22 Jul 2011 at 19:51

koooowweeee said:
you must be unlucky to get 3 average chips

rather than keep wasting money why dont you run it with higher volts and if it breaks either send it back or buy another. in the long run if you keep getting average chips and selling them you could have bought one with the money you keep wasting

Yep very true as long it had 3 years warranty on the retail chip, push it at higher vcore until the chip had died and sent it back and RMA it and get it replaced because Intel is no way of finding out if you had overclocked it or not.

koooowweeee · 22 Jul 2011 at 19:53

bulldog147 said:
Yep very true as long it had 3 years warranty on the retail chip, push it at higher vcore until the chip had died and sent it back and RMA it and get it replaced because Intel is no way of finding out if you had overclocked it or not.

is that what you did with yours? lol

Clum · 22 Jul 2011 at 19:55

koooowweeee said:
what volts did they say the chip would do 4.8 at?

They say a max of 1.4 on the product page, but there's no further independent information supplied with each chip. On 1.4 at a 48 mult it fails prime/linx in under two minutes. I've tried every combo of VCCSA/VCCIO/PLL/LLC/Phase ecte ct ect, I've seriously done it all, so the problem lies with hardware, be it CPU or mobo.

bulldog147 · 22 Jul 2011 at 19:55

koooowweeee said:
is that what you did with yours? lol

On my old chip yep !!!! I will try 6GHz on my old chip one day! and try 1.6V

Clum · 22 Jul 2011 at 20:00

bulldog147 said:
Yep very true as long it had 3 years warranty on the retail chip, push it at higher vcore until the chip had died and sent it back and RMA it and get it replaced because Intel is no way of finding out if you had overclocked it or not.

If it comes to that then that is what I'll do with one of my chips. For this one though, I feel that as I've paid a premium, I want to get to the bottom of the issue.

koooowweeee · 22 Jul 2011 at 20:01

Clum said:
They say a max of 1.4 on the product page, but there's no further independent information supplied with each chip. On 1.4 at a 48 mult it fails prime/linx in under two minutes. I've tried every combo of VCCSA/VCCIO/PLL/LLC/Phase ecte ct ect, I've seriously done it all, so the problem lies with hardware, be it CPU or mobo.

what does it take for 48x

Clum · 22 Jul 2011 at 20:05

I've not pushed it yet until I hear back from OCUK and can find out what's going on. Let it do the auto-OC just purely out of interest today and saw it pulled 1.54v for 5GHz, which then promptly failed within 10 seconds of booting. If it wants that much for 5, I'd imagine 4.8 would want a good 1.45+. Was actually very surprised that the autotune would go that high!

bulldog147 · 22 Jul 2011 at 20:07

I thought ocuk only do 4.6GHz as I cannot see any of it with 4.8GHz yet ?

Clum · 22 Jul 2011 at 20:09

http://www.overclockers.co.uk/showproduct.php?prodid=CP-374-IN&groupid=701&catid=6&subcat=2020

I also notice that it says that there are 6 in stock, which is exactly the same number as showing before I ordered. Call me suspicious, but between that, the late dispatch and receiving retail rather than OEM, I can't help but think there's something strange going on with this order.

koooowweeee · 22 Jul 2011 at 20:14

was it sealed?

people have been banging on about ocuk say dont go over 1.38 and now there selling chips with a clock of 4,8ghz with 1.4

makes you wonder how high can we go with these chips?????

bulldog147 · 22 Jul 2011 at 20:19

Clum said:
http://www.overclockers.co.uk/showproduct.php?prodid=CP-374-IN&groupid=701&catid=6&subcat=2020

I also notice that it says that there are 6 in stock, which is exactly the same number as showing before I ordered. Call me suspicious, but between that, the late dispatch and receiving retail rather than OEM, I can't help but think there's something strange going on with this order.

But it marked with a star on it *This CPU does not come pre-overclocked, you will be required to set the clock speeds in the BIOS yourself. These CPU's have been tested to run at the speeds stated. If you want a pre-overclocked bundle, please see our bundles section.

It mean you have to do it yourself!

koooowweeee · 22 Jul 2011 at 20:21

he knows that lol

Clum · 22 Jul 2011 at 20:22

No it wasn't sealed and the chip had some TIM still on it, so clearly has been used or tested.

No idea how high they can safely go; nobody does. Point is that this one should do 4.8 at 1.4 or under, which currently it seems like it's not even close to being capable of. Think it just comes down to either the chip is dodgy, my motherboard is dodgy, or the OCUK testing mobo has magical powers!

Clum · 22 Jul 2011 at 20:23

bulldog147 said:
But it marked with a star on it *This CPU does not come pre-overclocked, you will be required to set the clock speeds in the BIOS yourself. These CPU's have been tested to run at the speeds stated. If you want a pre-overclocked bundle, please see our bundles section.

It mean you have to do it yourself!

Of course I've done it myself; have you read anything that I've written? :confused:

bulldog147 · 22 Jul 2011 at 20:30

How about my cherry new chip can get 4.8GHz with easy 1.35v at the bios:

http://valid.canardpc.com/show_oc.php?id=1919615

BillTheButcher · 22 Jul 2011 at 21:04

bulldog147 said:
How about my cherry new chip can get 4.8GHz with easy 1.35v at the bios:

http://valid.canardpc.com/show_oc.php?id=1919615

How does that help Clum? :confused: