Can asus gts 450 run on my smps....?

[Bony]

SMPS 450 Watt (24 Pin)
Model No IT-2045S
Input Voltage Range 220V AC
Frequency 50Hz±5%
Current 4A

D.C Output Voltage: +5V; Current: 40A
Voltage: +12V; Current: 20A
Voltage: +3.3V; Current: 28A
Voltage: -5V; Current: 0.5A
Voltage: -12V; Current: 0.5A
Voltage: +5V SB; Current: 2A

 

[Kari]

the psu only has 20 amps on the 12v rail, that's 240W. The card consumes around 110W under heavy gaming (furmark pushes it up to 140W). If you have a really low power cpu and only one hard drive, you might be alright. It would be a wise move to buy a new psu as well. Total wattage doesn't have to increase since modern psu desings have a very strong 12V rail(s), so new psus can output almost all of their watts via 12V rail(s).
http://www.techpowerup.com/reviews/Powercolor/HD_6850_SCS3_Passive/25.html