Take the 2-minute tour ×  What's the highest PSU wattage I can
go for an Intel D865PERL motherboard (Pentium 4)?  I have an
Intel D865PERL motherboard:
http://www.intel.com/support/motherboards/desktop/d865perl/
with the following processor: Pentium 4 CPU 2.80 GHz, 2.79 GHz,
1.00GB RAM  I only have a 300W PSU and I clearly need more,
because the video card says so.  Is it safe for me to upgrade to
a 550W PSU? (Or, what's the highest PSU I can go for?) Won't it
fry my motherboard? I normally leave my machine on for months.
share|improve this question  2 Answers 2  up vote 3 down vote
accepted  The wattage of your power supply indicates the power
load it can supply. It does not mean there is more current
running through your motherboard. You can put any standard PC
power supply into that system.  share|improve this answer  There
is no upper limit on the wattage of the power supply which your
system can use other than defined by chassis physical
dimensional (mechanical) requirements. A power supply will only