Power Supply (PSU) Tech Guide

Okedokey

Okedokey

Well-Known Member
Its a good improvement mate. Still a few issues I think. Well done, especially being sick and all.
 
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gamerwithoutrig

New Member
''GTX 580 SLI...........................850W .........................60A
GTX 570 SLI...........................800W .........................58A''
Is this the card themselves that takes 800/850 watt? or the whole system with them?
 
fastdude

fastdude

Active Member
gamerwithoutrig said:
''GTX 580 SLI...........................850W .........................60A
GTX 570 SLI...........................800W .........................58A''
Is this the card themselves that takes 800/850 watt? or the whole system with them?
Click to expand...

The wattage figures above are the recommended PSU wattage for the whole system.
So if you had GTX580 SLi you'd want at least a 850W PSU.
 
linkin

linkin

VIP Member
Correct.

Also, I've been looking up that Corsair CX430. It's not a good powersupply at all. It can barely do 350 watts. All the primary capacitors are Chinese or Taiwanese, and it has zero PFC. The design is also similar in the VX450 and VX550 PSU's

So to anyone reading this, do not buy it. Antec and Silverstone have much better offerings in that wattage range, with quality parts.
 
linkin

linkin

VIP Member
I have not looked recently, I shall do it now (even though it's 2:30am and I need sleep, I'll do it just for you :p)

EDIT: It's there now. the AMD website states 550w, for amperage I have used a "safe" value until I can find some solid sata.

The GTX 560's TDP is said to be 180w, by the CEO of nvidia himself... that's for the card only of course.
 
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fastdude

fastdude

Active Member
linkin said:
I have not looked recently, I shall do it now (even though it's 2:30am and I need sleep, I'll do it just for you :p)

EDIT: It's there now. the AMD website states 550w, for amperage I have used a "safe" value until I can find some solid sata.

The GTX 560's TDP is said to be 180w, by the CEO of nvidia himself... that's for the card only of course.
Click to expand...

Aw thank you:D

Right, 550W is pretty good. Best to be on safe side eh?

Yeah... Wonder what the reference cooler'll be like... Maybe vapour chamber like its big brothers, but then again its just revised GF104, not GF110
 
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Giantz

New Member
I'm wondering how much of a difference it would make if my power supply has 38 amps on the 12v rail thing and crossfire 6850s require 40.

would the results be drastic??
 
bomberboysk

bomberboysk

Active Member
linkin said:
Correct.

Also, I've been looking up that Corsair CX430. It's not a good powersupply at all. It can barely do 350 watts. All the primary capacitors are Chinese or Taiwanese, and it has zero PFC. The design is also similar in the VX450 and VX550 PSU's

So to anyone reading this, do not buy it. Antec and Silverstone have much better offerings in that wattage range, with quality parts.
Click to expand...

CX430 does use chinese (Samxon) caps, could be better, definately could be worse. Yes, the +12v rails are rated @ 350W, but it does have active PFC (IIRC in the EU switched mode power supplies are required to have at bare minimum passive PFC, not 100% sure on that though). What does really let down the CX430 however is the efficiency, not even up to 80PLUS standards.

The seasonic S12II and even the ATNG built rosewill units are better quality though in the same price range...
 
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BLITZKREIG99

New Member
Dell Dimension C521. And i just purchased a radeon hd4650 so i need more power. I haven't found anything that would help but i was going to attempt to do an external PSU. I was looking at a Thermaltake TR2, because i saw someone routed it through the computer.
 
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