600 Watt 5770 crossfire

Humble_Pie

Humble_Pie

Humble_Pie

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Joined
13 Sep 2009
Posts
35
Hey, I'm going to ask whether or not adding another 5770 to my system is completely out of the question :confused:

AMD Phenom II x2 550 (two other cores unlocked) @ 3.4ghz
Asus M4A79XTD EVO Mobo
2x 2GB 1600mhz Patriot sector DDR3 RAM
Powercolour Ati Radeon HD5770
500GB SATA 7200.3 rpm HDD
OCZ ModXStream Pro 600w Silent SLI Ready Modular Power Supply

PSU Info:

- 150 x 160 x 86mm (W x L x H)
- ATX12V v2.2 and EPS12V
- up to 86% Efficiency
- Overvoltage/OverPower/Short-Circuit protection
- (.99)Active PFC
- MTBF: 100,000 hours @ 25C
- 1 x 20/24-pin ATX
- 1 x 8-pin CPU
- 1 x 4-pin CPU
- 1 x 6-pin PCI-E
- 1 x 6+2-pin PCI-E
- 4 x Peripheral
- 2 x Floppy
- 6 x SATA

eXtreme Power Supply says my spec requires 271 Watts, and if i add 20% Capacitor Ageing It goes up to 325 Watts.

Note: My pc is only on for 5 hours a day, 1-2 hours gaming. It is not on all the time.

Power consumption for the 5770 is 18 watts idle and 108 watts full load

Thanks, HP
 
Last edited:
It'll be fine, my brother is running Xfire 5770 on a 600W OCZ, and I'm running GTX 260 SLi on a HX520.
 
Nooooooooo

spend your cash on games ,L4D,TF2,COD 6 MW2
just do it you know you want to

LOL
Dave
:):):):)
 
I've noticed a big drop in electric usage since going from a 4850 to a 5770 (which was quite low power anyway). You should have no problems whatsoever, I would hazard a guess that you could even run 3 of these cards on your supply :)
 
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