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External or small power supply help

B

Brad Gamma

Weaksauce
Joined
Jan 9, 2008
Messages
78
Im trying to make a tiny pc to sit under my TV, and I was wondering whether id be able to power it with an external power supply (I'm going to make my own case and I want it as small as possible).

Inside will be a mini-itx motherboard, a core 2 duo mobile processor (not decided which one yet) a 40gb (which will probably get bigger) 2.5 inch hard drive, 2 gig of ram and a slimline dvd drive, couple of fans aswell. The concerning bit is a pci-e low profile 8500gt or 8600 card

Will I be able to power this with an external power supply? I know I can power the system without a graphics card, but is it possible with an external power supply? If not what is the smallest possible internal power supply I can get that will suffice?

Thanks in advance :)
 
Thanks :)

I might pick up a mini 120w psu and adaptor, or a pico one. The 30 or so watts needed by a 8500gt is supplied through the board right? I seem to remember that things up to about 75 watts can be powered through a pci slot, or did i dream that up?
 
Assuming the 8500GT doesn't have an extra power connector on it, then yes. PCIe cards can draw up to 75W through the PCIe connector.
 
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