I searched the forums and don't see a previous thread.  Is it possible to replace a p4 550 3.4ghz processor (925x Express chipset) with a 64bit chip on a GEN3?  It looks like the 925x chipset supports 64bit but what about the socket type on the mobo? 

 

I'm anticipating DX10 gaming and read that XP won't support it and an upgrade to Vista will probably be necessary.

 

thanks for any help and advice,

 

 

Dimension XPS Gen3
P4 550 HT 3.4GHz 800FSB
Win XP Home
1 GB Dual Channel DDR
ATI Radeon PCI-e X800 XT 256mb
19" Dell/Sony Trinitron P991
80GB SATA
SB Audigy 2 (D)
16x DVD
ATI Catalyst 5.11