i7 4790k code 00

stevo73

Distinguished
May 1, 2010
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I have Asus Maximus vi Hero mobo with i5 4670k . Fitted Brand new i7 4790k code 00.
I have latest bios update 1603 and Asus drivers all up to date also cleared cmos.
I have refitted i7 twice ,I am back with the i5 fitted.
I have checked i7 pins all OK.Is there anything I can do.