Soundcard Power Issue!

[boldor]

Hello!

I was planning on buying a new soundcard, yes; the Asus Xonar DX.
My problem is that i use two graphic cards (in crossfire) and that, i believe, takes much juice out of my power supply.
The Asus Xonar DX needs additional power (4pin i guess) and i dont know if my system will be able to handle that cause i have ABSOLUTELY no idea how much that sound card needs (googled for hours)...

I've calculated on a website (http://extreme.outervision.com/PSUEngine) that when in almost full load my system needs about 572 watts. Which is only 28 less then i have.

So here is my question.. How many watt's does a sound card like that need? And will it work with my system?

Here are my specs:
Power Supply: OCZ ModXStream Pro OCZ600MXSP 600W ATX12V V2.2
Mobo: A790GXH/128M
CPU: Phenom II x4 955 3.2 BE
RAM: 4GB OCZ Gold edition DDR3
GFX: 2x Gainward 4850 [fabric overvlock]
HDD: 500gb regular Samsung SATA
Drive: LG multi disc cd/dvd
Extra: one 120mm fan for the gpx's, one 80mm fan, and one Freezer XTREME CPU cooler.

 

[Remeniz]

I have an M-Audio Delta 1010. It's an external interface that connects to the PCI card and needs a maximum of 30W. I very much doubt the Asus Xonar DX needs half that to run. So you'll be fine to run it in your rig.

In fact i'd say it will zap about 5W max.