GF4 440 mx se stablity problems!!

[sav_more]

i recently bought a GF4 440 mx.i installed the drivers provided.but the damn thing crashes my system (xp and 98se).the screen starts to flicker and the system sometimes reboots while playing games such as HALO,sands of time. i have the latest drivers 61.(something).i have a HIS mobo with VIA P4M266A chipset,P4 1.8,256Megs ddr ram and an AGP 4X slot.please help!!!!!!!! :roll:

 

[akshayt]

install latest directx.
Install manufacturer given drivers.
Have stable ps of atleast 350watts,minimum 300watts
good cooling

 

[sav_more]

i formated xp and installed the manufacturer drivers.it is working fine.thanks guys!!!!!!!!!!!
and......my ps is 300W.is that enough or do i need about 350W

 

[akshayt]

350 would be better