Originally posted by: GEOrifle
CaiNaM they told me CM's eXtreme Power 600W PSU wich has on dual rail with 18A
isn't enough to power up X1950PRO AGP, suppost to be at least 20A on dual rail, or on single more then 30A.
And very usefull recommendations:
http://www.sapphiretech.com/en/forums/showthread.php?t=1005
well, i don't know what to tell you.
the enermax is 430w with 20a +12v
the thermaltake is 480w with 18a +12v
the OCZ is 550w with 26a +12v (running oc'd x1900xt & 400mhz oc on X2 cpu). it's pci-e so i can't run the 1950P on it, but if the xt runs on it... i can't imagine it can't run the x1950pro (and it doesn't have their 'required' 30a on +12v). it also runs 4x hard drives, 2 opticals, liquid cooling pump, and SB card (not to mention several USB devices).
the first 2 listed run an OC HIS and std clock visiontek x1950 w/o issue. they both run oc'd a64 3000+; both have 3 hd (each have 2 running raid), one optical, and little else.
i know from experience a quality power supply is critical to stability in a pc running high end graphics cards, but according to what you're being told,
this power supply is not adequate, when in fact i've known it to run dual gpu's requiring much higher min. power.
the one concern when using a power suppy with multiple +12v is how efficient they share max load amps. not sure if there really is a way to determing that, tho....