Originally Posted by PatrykJM
Intel Pentium 4 Dual-core (all-together 6.01 GHz)
Doesn't work like that. If it did my i7 CPU would be doing 14GHz.
But as other's have mentioned try the Core 2 Duo if the motherboard supports it (May be the bios would need an update) But please do check if it is supported first before throwing it in the board.
EDIT: After checking out the supported CPU's for your ASUS P5W DH Deluxe motherboard, it seems as though it cover's quite a wide range http://support.asus.com/cpusupport/l...H%20DELUXE&p=1
Just make sure you're on the latest bios. If not, flash it