Asus P8Z77-I Deluxe Overclocking + 2500K

[LEK-89]

Hi 8 Pack/guys,

I've recently moved to Mini ITX and I have gone with this board, however it is the first Asus board I have ever owned and therefore I have never overclocked on them before!

I've had a good look in the BIOS tonight and I have currently only changed the following settings to attempt a 4.5Ghz overclock (bearing in mind that I may be pushing my luck here, as I could only get 4.4Ghz out of my 2500K on my old MSI Z77 Mpower board):

CPU ratio - 45
CPU Vcore - 1.310v
CPU Load-line calibration - high
DRAM frequency - 1600Mhz
DRAM timings - 9-9-9-24 (though I'm not sure if I should leave it set to auto which is 9-9-9-27?)
DRAM voltage - 1.5V
DRAM command rate - 2T
CPU spread spectrum - disabled

As mentioned, the following settings above are the only things that I have changed. Everything else is still untouched / set to auto. I'm going to run a Prime test tonight to see if 4.5Ghz is stable.

Could you give me any tips as to what else I should change in the BIOS to help towards a stable overclock? Oh yeah even though that Intel SpeedStep is enabled and the computer clocks down the CPU to 1.6Ghz when idle, the vcore still remains at 1.31V or 1.304V - do you know why this happens?

Many thanks!

Liam

 

[LEK-89]

Thanks for clearing that up about the fixed voltage guys. I've never done offset overclocking though, is it a better method to use rather than fixed voltage overclocking?

Thanks - Liam

 

[LEK-89]

Nope!! I use fixed voltage more often than not. I think its the more stable way to go.

Thanks 8 Pack

How does my overlocking spec look in my original post? Is there anything that you can add to it? Just a quick update as well - with a 1.31v vcore, I'm failing to even get a stable 4.4Ghz

Liam