Power Supply Wattage

[donkeywash]

Could someone give me a rough idea of what size power supply I should get?

Radeon 4850, Phenom 9850, & MSI K9A2 Platinum, 4GB DDR2 1066MHz RAM, 4 SATA 7200 HDD's.

I do want to overclock the CPU as soon as I can get a board with the 750 southbridge as well. Also, aside from wattage any recommended supplies?

 

[auscanzukus]

450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)

http://ati.amd.com/products/radeonhd4800/requirements.html

I'd say 500W-ish. Do you plan to upgrade the gpu or crossfire?

 

[Conumdrum]

http://www.ocforums.com/showthread.php?t=458204

And become a forum member there, tons of good info etc. Much more info than here.

And xtreme forums also.

 

[Zorg]

This PSU is larger than you need but it is ultra cheap after rebate. It's Tier 1 Single rail Seasonic built. If you want it then act fast.

PC Power & Cooling S61EPS 610W
Back to school special savings, ends 8/15
Original Price: $199.99
You Save: $90.00
$109.99
$79.99 after $30.00 Mail-In Rebate

 

[Onus]

Wow. If I needed a PSU...

Anyway, there is a PSU sizing calculator at http://www.extreme.outervision.com/psucalculatorlite.jsp. I would suggest adding 25%-30% to what they recommend to 1) have a cushion for expansion, and 2) allow your PSU to operate in the most efficient part of its range.