On Mon, 1 Oct 2007, Tim wrote:
On Sat, 2007-09-29 at 18:43 -0400, ed@xxxxxxxxxx wrote:
Also, match the power supply to the load. If you only need 50 watts,
do not buy a 400 watt power supply. I think I have a 150 or 200 watt
power supply in my VIA C3 computer, LPX form factor.
While you don't need a huge supply, one bigger than your current needs
gives you more room to play with later on, if you have to add something,
or the power supply gets a bit sick. The wattage is the capacity of
what it can deliver, not that it's always going to draw 400 Watts from
the mains and be a drain on your electricity bill.
You are correct, that at 400 watt power supply does not always draw 400
watts from the wall. But the efficiancy of the power supply is less when
how running at full power. Take this article for example:
http://www.silentpcreview.com/article263-page4.html
The 300 watt power supply leaks 12 watts when the computer only needs 40
watts.
I may be working on a project that needs to run in a car, but not an
entertainment system. Some links of interest for this thread:
motherboard / cpu: JetWay J627F800-OC VIA C3 processor VIA CLE266 Mini ITX
Motherboard/CPU Combo
cases and power supplies: http://www.mini-box.com
You can find a 60 watt power supply (12V 5A) to run a system
ed
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