Tom's Hardware > Forum > CPU & Components > Other Components > Power Supply Upgrade for an Athlon XP
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Hello, I own an old Pentium III 866 & i'm using
a 300W ATX standard power supply (6 months old).

I going to buy an Athlon XP 1800 + Soltek 75DRV2,
& i've a question:

Can i use my 300W power supply with this mobo & cpu ?
Should i upgrade to a new case with a new power supply ?

Very Thanks

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Best to try it and find out.

There's a lot of people beleive a 300W supply can take it. With many added cards and devices I figure 350 is nearer the mark, but I used a 400W for one I made, just to make sure.

Again, try it. If it works you haven't wasted any money.

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Reply to camieabz

I purchased a PC case with 300W power supply. I'm running 4 PC case fans, Volcano 7 heatsink fan and a Soyo Dragon Plus card reader. It's working fine, knock on woods.

Reply to Anonymous
- 0 +

AMD recommends atleast a 300W, so you should be fine unless you have a lot of HDs and CDROMs.

My case has so many fans that it hovers above the ground :eek: .

Reply to svol
- 0 +

From what I've read and seen personally, the quality of the PS matters as much or more than the wattage. I'm running an XP 1700+, 2 7200 RPM hard drives, a CD burner, DVD ROM, GF2MX400, sound card, 2 NICs on a quality Antec 300W with no problems.

If your 300 watter is good quality, you probably shouldn't have any problems.

Trying it is the only way to know.

Good Luck.

"There's no such thing as gravity, the Earth just sucks"

Reply to bdaley
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