Sandy Bridge Over-Clocking Do I have a 5GHz chip??

Dusty Danzo

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Jan 16, 2015
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4,510
Hey folks,
Just thought I would give the TPU auto-overclocking feature a go on my asus P8Z77-V. I though it would be something moderate like 4.3 or 4.5.
So the PC Reboots and the stress test feature starts. I get 4.3 initially and it just kept on going! Eventually hitting 4.8 and i had to manually stop it because the vcore was hitting 1.42! After that I manually tuned down the Vcore to about 1.34 and ran Cinebench to see how fast and stable the OC was. To my amazement It blew all me previous overclocks out of the park! hitting a huge score of 9.02 and later on 9.15! All on Air cooling and hitting around 75C after tuning the Vcore down.

So does anyone reckon i could hit 5GHz? I would love the auto overclock to have kept going but i had no way of controlling the voltage without stopping it and i fear if it kept going it would kill my CPU with crazy voltages. Anyone know how to get around this? cheers!

My Spec is
i7 2700k
Asus P8 Z77-V
Corsair Vengeance LP 8GB
AMD Radeon 7850 2GB
Corsair CX 750 750w PSU

[Edit] I forgot to say I am running this on Air with an Arctic cooling Xtreeme CPU heatsink inside a NZXT Phantom 410 case

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cpu z states 1.128v with 103x47 = 4840 mhz which implies that offset voltage is set and not manualy fixed. anyway, ensure you have done eccesive stresstesting to ensure stability. i wouldnt pass 1.35v for your cpu and having temps hovering around 75c i say you should call it a day.! thats a great result but even if you could achieve 5.0ghz with 1.35v your tower cooler wont be able to sustain temps around 75c which is also the safe limit. here consult this, as it has some great info.!

Intel Temperature Guide

 

Dusty Danzo

Reputable
Jan 16, 2015
5
0
4,510


so do you think i have hit the ceiling for this chip? or have i got lucky in the silicon lottery. I think maybe with a few voltage tweaks and some dual rad water cooling I think 5GHz may be possible but I wouldn't feel happy about having the system run with such high voltages all the time.