I'm just wondering if my 600w power supply can handle the following things that I want to upgrade my pc with.
At the moment here's my current pc specs:
intel i7 930 2.8 ghz quad core processer
G.skill 6gb RAM (3 x 2) DDR 3 (2000mhz)
XFX ATI Radeon 1gb HD 5770 Graphics
1TB HDD 7200 RPM
ASRock X58 Extreem Motherboard
x1 DVD drive
19 inch LCD screen with 1366 x 768 resolution
The case has got x2 120mm fans
8 USB ports (2.0)
and of course the 600W power supply
At the moment my pc is running fine with all of that however I want to buy another ati 5770 video card with crossfirex and i want to overclock my cpu at 4ghz and I'm wondering if my power supply can handle that? according to this website http://www.antec.outervision.com/PSUEngine it says that my current watt usage is 405 (with cpu and system load at 100%) and when I add in the overclock details and the dual crossfire video cards option it says that i need at least 544W (and that's also with a water cooling system and having the cpu and system load at 100%) and the bottom line is do you think my 600W power supply would be able to handle that like the website says or would I need to buy a bigger power supply, because I just want to see if the website is accurately telling me if it's ok and I just want your guys opionions whether you think it is ok or not.