E8400 reporting slower speed

[Last Kronin]

AS mentioned, just installed my new cpu from my old E6600, which was 2.4ghz and this E8400 is reporting as 2.4ghz as well should i have changed anything in my bios? i updated my Bios to a newer version as the asus website said that it supported the cpu on *** newer bios

 

[Last Kronin]

i was thinking maybe memory settings as the cpu is rated at 1333mhz, heres the mem im using http://www.overclockers.co.uk/showproduct.php?prodid=MY-058-GL&groupid=701&catid=8&subcat=, i did try to change the memory setting to 1333mhz but when i rebooted it said overclock failed.

According to CPuz Dram frequency is 266.7 mhz

 

[Last Kronin]

Think ive sorted it, went into some part of my bios and instead of doing a manual config, like changing the ram voltage to 2.1V ( which i read its meant to be) i switched it all to auto, now its reporting at 3ghz, but will see if its the same when i switch of my system tonight and back on tomorrow.