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i7 920@4GHz bundle from OCUK is unstable!!

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I tried turning the fans around as recommended by corsair, seems to make a little difference, max temp has settled to just under 80C which is a bit more comfortable and that’s after 2 hours, so looking good atm.

Maybe the use of different PSU's results in slightly difference voltage requirements or maybe they just didn’t test it thoroughly enough.

Oh well, the Corsair HX 850W is faulty though, tried with another machine and the same thing again, briefly powers on then off and that’s it. Shame. :(
 
Skyline said:
crank the voltage up to 1.35v and the QPI/VTT to 1.4v
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Maybe if he was running a C0 stepping i920, but those voltages are way to high for a D0!

I can do 4GHz with 1.275v Vcore, and 1.255v QPI/Vtt, I also set IOH to 1.140v, and then leave the other voltages on auto, this gives me a solid 4GHz o/c, and I am using 200x20 instead of 191x21, though getting 191x21 stable is a lot easier tbh..

Seems that these bundles go out with a really shoddy overclock, looks like a 2 minute job tbh..

No wonder your temps are so high mate, 1.300v Vcore is a lot of voltage for 4GHz on a D0.. Though not all chips are the same, but most guys on here are doing 4GHz with less than 1.3v Vcore..

I guess it isn't really our place to help you stabilize this o/c though, as this was a pre overclocked system, I don't understand how you can't post in Customer Service forum for help, rjk would gladly help you out with this..

The good thing about these bundles is that at least you are guaranteed a chip that will do 4GHz and probably more with some tweaking, there seem to be a few D0's that aren't capable of doing 4GHz in the current batches.
 
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DavyBoy said:
Maybe if he was running a C0 stepping i920, but those voltages are way to high for a D0!

I can do 4GHz with 1.275v Vcore, and 1.255v QPI/Vtt, I also set IOH to 1.140v, and then leave the other voltages on auto, this gives me a solid 4GHz o/c, and I am using 200x20 instead of 191x21, though getting 191x21 stable is a lot easier tbh..

Seems that these bundles go out with a really shoddy overclock, looks like a 2 minute job tbh..

No wonder your temps are so high mate, 1.300v Vcore is a lot of voltage for 4GHz on a D0.. Though not all chips are the same, but most guys on here are doing 4GHz with less than 1.3v Vcore..

I guess it isn't really our place to help you stabilize this o/c though, as this was a pre overclocked system, I don't understand how you can't post in Customer Service forum for help, rjk would gladly help you out with this..

The good thing about these bundles is that at least you are guaranteed a chip that will do 4GHz and probably more with some tweaking, there seem to be a few D0's that aren't capable of doing 4GHz in the current batches.
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I agree, 1.300V did seem high when I booted up and it wasnt stable, but it's now stable with 1.325, max temp is around 79/80C now, better but still hot.

Was hoping they would cherry pick the decent CPU's to keep temps low but obviously there not doing that.

I have now posted a message in the support section, in fact it was done last night, did it by finding an old shortcut to post I made there previously, for some reason whenever I select the main page with list of sections it throws up an error. very weird.

Still no responce though.

Also it was sent out within a few hours of ordering, I was under the impression they built to order so either very little testing was done or this was built earlier for another order, hopefully not returned. lol
 
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Big.Wayne said:
Hey Shocky-FM,

without saying anything negative about the OcUK bundles I get the distinct impression quite a few of these 4GHz bundles are not really soak tested properly, a friend of mine bought one a few weeks ago and called me round to help him set it up (and tidy his cables) and while using the OcUK profile it bluescreened within a few minutes of prime! :(

I'm not up to speed with i7 clocking so I just reset the BIOS defaults and everthing was peachy . . .albeit with no prepayed for overclock remaining.

I don't think someone can mass produce a commercial overclocked product anywhere near as good as an individual can overclock his own personal rig, two many variables and not enough time.

You got a few choices, make a post in the tech support forum and get some help, learn to overclock yourself and correct the bad BIOS settings or just send it back for a full refund!
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Each one is hand overclocked then a profile saved on the board. We have generic settings we use to get into the ballpark figure for the bundles.

Each one is tested before being sent out, returns costs are dire and to make any kind of profit the return rate on items such as systems and bundles needs to be as low as possible. Factor in shipping charges and man hours for support and testing faulty items and it quickly becomes obvious why.

HighlandeR said:
There were just way too many people with these 4ghz bundles so I stayed clear of these, maybe they just need to modify the bundle even more, am hoping these Core i5s proove more cheaper/stable and perhaps with a decent heatsink ie the Corsair H50 which can be safely pre-installed and then that entire bundle could be tested/sold @ 4ghz would proove far better and reliable.

That way no room for error on anyones part !

And best part of it.... it would be a cheaper bundle hence total sell out!
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We ship out 20 odd a day of the i7 bundles, been doing them for months now and we are still running on a return rate below that of the components that make up the bundles thanks to our pre-testing eliminating faulty boards etc.

If they were a returns problem then we would have killed them a long time ago. :)
 
Yewen, how long does it usually take for someone to respond to posts in the customer services section?

DavyBoy said:
Maybe if he was running a C0 stepping i920, but those voltages are way to high for a D0!

I can do 4GHz with 1.275v Vcore, and 1.255v QPI/Vtt, I also set IOH to 1.140v, and then leave the other voltages on auto, this gives me a solid 4GHz o/c, and I am using 200x20 instead of 191x21, though getting 191x21 stable is a lot easier tbh..

Seems that these bundles go out with a really shoddy overclock, looks like a 2 minute job tbh..

No wonder your temps are so high mate, 1.300v Vcore is a lot of voltage for 4GHz on a D0.. Though not all chips are the same, but most guys on here are doing 4GHz with less than 1.3v Vcore..

I guess it isn't really our place to help you stabilize this o/c though, as this was a pre overclocked system, I don't understand how you can't post in Customer Service forum for help, rjk would gladly help you out with this..

The good thing about these bundles is that at least you are guaranteed a chip that will do 4GHz and probably more with some tweaking, there seem to be a few D0's that aren't capable of doing 4GHz in the current batches.
Click to expand...

This one needs 1.325V and 1.450 for QPI/Vtt, so either they've sent me a real pos or your very lucky.

I doubt this one will be overclocking higher then 4GHz, with temps in the 80-85C range already it probably shouldnt even be at 4GHz. lol
 
I was looking to get a bundle at some stage. Not cause i cant do it myself but when its on offer its only about an extra £20 for someone to test it for u, sort bios, and guarantee speed, but i am concerned from the number of people having issues. Although we probably only hear about the faulty ones and not the successful ones.
 
JonnyG1982 said:
I was looking to get a bundle at some stage. Not cause i cant do it myself but when its on offer its only about an extra £20 for someone to test it for u, sort bios, and guarantee speed, but i am concerned from the number of people having issues. Although we probably only hear about the faulty ones and not the successful ones.
Click to expand...

I dunno about that, even though it's not really as discribed allot won't bother returning the hardware (including myself) as it's allot of hassle and probably won't post here, in fact allot of OCUK customers don't post here much.

So I doubt we are seing the true number of systems that are not stable at their promised overclocks.
 
return it. its faulty. get full refund. selling products that dont work is really really really bad for business.
 
ebilcake said:
That’s hardly personal, the mods here are much harsher then other forums, they give no warnings and either overreact or do nothing.
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Then people should read the rules as required before they start to post. No more discussion on this matter, if you have a particular problem then email a Don direct. Keep this thread on topic
 
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