Short, sweet and to the point.
Will Coolmax 400W SATA&20/24pin Power Supply V-400 (http://www.amazon.com/Coolmax-24pin-Power-Supply-V-400/dp/B000BKBVT8/ref=sr_1_7?ie=UTF8&s=electronics&qid=1278443568&sr=1-7)
Bestec ATX-250-12Z-D7R (Best link I could come up with is http://cgi.ebay.com/250W-Power-Supply-PS-Bestec-ATX-250-12Z-Rev-D7R-/270602500508)
All inside a juicy HP Pavillion a6400f computer... Mmm...
If it doesn't fit, you must acquit.
Does it fit the case? The power specs are good. HP uses a standard power supply.
So, I think it will work if it fits.
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