SevenCrimson

Distinguished
Nov 16, 2010
1
0
18,510
Specs:
I7 920 2.66Ghz
3 500 GB HDD's
Xfx x58i motherboard
Gtx 260 216 core 768mb (currently in rig) and a Gtx 460 SC 1024mb
Ultra x3 1000w

I am having issues with my gtx 260 rebooting my pc during any 3D required games if i run it at base clocks and dont underclock it , My gtx 460 when put in its extremely lagging out my desktop and applications also games.
Could the issue be my Psu? or the cards? not really sure what i should do to check at the moment any advice would be greatly appreciated and thanks in advance for any help. also i ran Oc Scanner for my 460 and it rebooted my pc so could this be more of a psu issue ? and what would be a good psu to get in switching from an ultra x3 1000w