My power supply is a Lite-on 300-watt with 20A on 12v rails. I just ordered a energy efficient 9800gt (no extra 6-pin power required) but now I am having second thoughts on whether it will power it safely. I ran a power supply calculator and it said I need a minimum of 220 watts to run my system.
Acer m5700 desktop prebuilt
Core 2 quad q8300 (95 watt)
2 sticks of ddr2 2gb ram (total 4gb)
1 seagate 7200rpm 750gb hd
1 dvd/cd writer
2 usb power (keyboard and mouse)
1 cpu fan
1 card reader
Combined power on +3.3 and +5v not exceed 130 watts.
Combined power on +12v1 and +12v2 rails not exceed 20A.
At ambient 25 degrees celsius: Total output power should not exceed 300 watts.
At ambient 50 degrees celsius: Total output power should not exceed 270 watts.
I really don't want to spend the extra money on a power supply but I guess I will if I have to.
Anybody else running a green 9800 gt with low power supply for a long time?
Do you guys think this power supply will be strong enough? What exactly is the risk if it is not strong enough, will my power supply just die or will it take my whole system?