Is 650W power supply enough to…?

Alright so I currently have a very 650W energy supply and that is giving electricity to…

i5 660 SEVERAL.33ghz (not overclocked)
Nvidia 9800gt (not overclocked)
gigabyte h57m-usb3 motherboard
4x2GB connected with RAM (1066MHZ)
1x 500GB Challenging drive

Would I be capable to add a different 1T hardrive And I became also making plans for adding Two or three more fans Can you think a new 650W could support it

Should always be ok.A good 1Tb disk will administer only concerning 20W (+/- 10W)

A 650 Watt supply is excellent.Clean lint by it’s alternative & interior parts each year.While performing it, remove the fan’s core label as well as rubber select and include one drop of oil towards exposed the whole length.

IT IS ACTUALLY.