OCUK Sandy Bridge, SB-E and Ivy Bridge 5GHZ Club

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not quite sure what to do with memory timings will try again in a few days
 
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Looks like I have the worst chip ever, just simply wont stay at 4.5GHz without over 1.4 voltages going through it :(

Anything else I can try? Also my chip passes LinX fine at 4000 but as soon as you select all memory, it fails. Is this a memory issue or more of a lack of volts through chip issue?
 
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I was under the impression it was 1.425 tops before it starts damaging the chip I don't think any of these are 24/7 set ups for me its just run the test then turn it down again still wouldn't go anywhere near 1.648 supprised that's still working did get him into the top 5 tho
 
1.425V is the max recommended for 24/7 running any more and it could limit the lifespan of the CPU.

The higher voltages used here where for a short time just to do the run @ 5GHz +
There is still a risk running higher than 1.425V

As for the 1.648V :eek:


OcUK advice

***OVERCLOCKING GUIDELINES***

- Do not exceed 1.425v core voltage, doing so could limit lifespan of the CPU
- Aim to keep temperatures below 70c underload if at all possible
- Do not overclock with BCLK, again doing so could limit lifespan of the CPU
- Recommended memory voltage is 1.50v, so make sure to run your memory at 1.50v, higher than 1.60v could limit lifespan of the CPU
- These recommendations come from OcUK and Intel, your warranty is un-affected but we highly recommend you adhere to the above to make sure your CPU lifespan is un-affected
- All Sandybridge CPU's worldwide should be run at the above or lower voltages, no higher!
Click to expand...
 
Agreed 1.648v is a bit harsh but it was on at those volts for about 10 minutes then shutdown. As for limiting the life etc with 'normalish' volts, I've been running the rig now for over a year with my standard gaming/music Vcore at 1.475v for 5.0gGhz stable and the chip is still going strong. I'm not in the habit of treating it sooo bad but was bent on getting in the top 10 as I know this chip is a good-un. On other forums, I've seen people feed in more that 1.7v without a pop so bear that in mind. Also, I'm running very chilled water through a cpu-only loop (fed via an exterior rad submerged in very cold water) so my temps are always good. I think I will stop there tho, I'm happy knowing that I got to those clocks/runs using only water, 2 sticks of 1600mhz ram and Windows 7 :)

Carl
 
Table updated. Over the hundred members now :)

Sorry its taken a while to update... I have been spending a lot of time working with Shuttle to get thier new Z68 machine overclocking :) Currently my 2600K will boot and bench at 4.8GHz but will get to 5GHz in it somehow... I have to LOL
 
so all you need is 5ghz cpu 0 run super PI at "1m" - print screen like :

Uploaded with ImageShack.us

edit - used wrong superPI first time ( didnt show miliseconds)

Whup - 53rd on the list :) I'm pretty proud of of that XD - mabey I may be able to get higher score when I learn the in and outs of O.C. lol
 
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Have been playing around with my new rig for the past couple of days, so much so that I have still literally nothing but benching software installed on it. 2500k wise turns out mine is a rather temperamental little bugger, thought it was a rubbish one at first considering so far I can't even get 4.5 stable at less than 1.33v under load.

However, turns out it's just proper greedy with deceiving potential. Glad to know I -can- reach 5Ghz and the possibility is there for me to push it real hard in the future If I so please. Still probably the worst volts in this thread for the clock, by far.

ItMiB.jpg

Note that I refuse to use CPU-Z due to a bug reading QPI/VTT as Vcore, instead I'm sure OCCT will suffice considering it runs on the CPU-Z and HWmonitor engine. (and no, in my case none of the CPU-Z versions fix it)
 
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