how much power

[eggzile]

I'm building a new computer and the one thing im not sure about is how big a power supply i will need. I currently am going to use the parts below and i may add a 2nd 4870 for CF in the future, and possibly more ram. How big a power supply should i get to be safe even if i add on the extra card and ram?

p.s. i probably will be OC



Visiontek Radeon HD 4870 512MB

Intel Core 2 Quad Q9450

Western Digital Caviar SE16 WD6400AAKS 640GB 7200 RPM SATA 3.0Gb/s

G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000

Pioneer 20X DVD±R DVD Burner

XIGMATEK HDT-S1283 120mm Rifle CPU Cooler

DFI LP LT X48-T2R LGA 775 Intel X48 ATX Intel Motherboard

 

[Dangman]

From what I've read so far, the Corsair 620HX 620W PSU with 50A on the +12V rail is enough for HD4870 CF. So that's a good PSU to go with. However, since Corsair 750TX 750W PSU with 60A on the +12V rail can be had for $100 from buy.com or provantage.com, I recommend getting the Corsair 750TX. It'll give you a bit more headroom.

 

[jester1176]

might i suggest corsair's tool here?

http://corsairmemory.com/psufinder/default.aspx

 

[eggzile]

my case has the powersupply at the bottom. with that corsair its intake would be covered up, is it possible to flip the power supply upside down and it still work?

 

[Dangman]

my case has the powersupply at the bottom. with that corsair its intake would be covered up, is it possible to flip the power supply upside down and it still work?

Yes it will still work that way.

What case do you have?

 

[eggzile]

Antec 1200

 

[jester1176]

what case?

I've used the TJO9 case from silverstone which has the PSU at the bottom, but it has ventilaltion holes so fresh air can get in.

 

[eggzile]

well if it works upside down i have no objections

thx for the help