Originally Posted by
geo91
Hi davey
About two weeks ago one of my 7800gtx cards failed on ring customer support an engineer came and replaced both card with two 8800gts, great, an upgrade as the old cards where on longer stocked . but my system has become unstable and keeps locking up and freezes (playing games) on doing a bit off research it seems my 550w psu is not up to the job .on ringing mesh and telling them this they said the system would have to go back to them for tests but I have on site care.
Thanks geo91