Will 500w support this?

[strategoslc]

1: I am upgrading a pre-built hp m9150f with spare parts. It comes with a 500w PSU and I was wondering if it would be enough to power these:

GTX 460
Asus rampage III forumla http://www.newegg.com/Product/Product.aspx?Item=N82E16813131666
I7 950 @ stock
2x2Gb RAM @ 1600mhz
2x 7200 360 HDDs
+Rosewill Challenger case fans (2x 120mm, 1x 140mm) http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153

2: Would it be ok to pair a micro-atx psu with an ATX mobo if the case is ATX/Micro-ATX?

 

[jessterman21]

1. Yep

 

[strategoslc]

Anybody care to answer question 2? XD

 

[clarkjd]

2. depends on what else you have attached to the ATX motherboard, and what the mATX PSU will deliver amps -wise.

 

[JackNaylorPE]

Tried this ?

http://extreme.outervision.com/psucalculatorlite.jsp

Given the lack of a substantial price break for anything of lower wattage, when ya can get a 9.5 jonnyguru performance rated CPU for $60, why even think about anything smaller ?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207014

I can't see using a microATX anything unless it's in a teeny box for portability .... will run hotter and .... look at the link below

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%20600014001&IsNodeId=1&name=Micro%20ATX

There's not one on the list I'd risk my components to

 

[FinneousPJ]

In theory yes 500W is enough. In practice it may not be, especially if it's an old OEM PSU.