Yeah it does seem that its being taxed too much - not necessarily the problem but not a good thing at all.
Powersupply calculator: http://www.jscustompcs.com/power_supply/
ATI recommends a 350 Watt powersupply when using the Radeon 9800, but that depends on what all is inside the computer.
Powersupply calculator: http://www.jscustompcs.com/power_supply/
ATI recommends a 350 Watt powersupply when using the Radeon 9800, but that depends on what all is inside the computer.