Help overclocking 2600k with Gigabyte P67-UD4-B3

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5 Jan 2011
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I had a Asus p67 Pro ages ago then the sata fault came about so I decided to send it back and get the new gigabyte revision instead. I was able to overclock the asus when I had it to 4.5ghz and it was stable.

I have had the gigabyte board for months now but have only just tried to overclock it now, I go to the Bios and change the CPU mutliplyer to x45 and I exit it, boot up windows. Do something which uses multithreading so I get the 4.5 to show up in CPUZ but I know for a fact it's doing it exactly at the same speed as 3.4ghz. Do I need to change some other setting in the bios as well? I used easy tune 6 but the most I can overclock using that is 4.1 and it actually is running at 4.1 ghz (unlike when I change the cpu multiplyer in the bios).Thanks for any help.
 
When you pop back into the BIOS does it show the multiplier at 45 or lower?

When you exit the BIOS does it mention about saving changes then exit.
 
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