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Power Supply at requirement levels?

Last response: in Components
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September 15, 2010 5:21:14 PM

Hi.

I wanted to ask that if the PSU of a homebuilt computer is not enough (or around the min. requirements) would it cause the system to not work properly,or will the system not boot up at all?

The thing is,when I turn on my computer (with the order, UPS-case-monitor) it feels like there's no response for a short time -the monitor first turns on and after a few seconds off- than I hear the beep sound from the chasis and the system boots up.

Specs:

650 W Thermaltake thoughpower
i7 930
Asus P7P55D-E Deluxe
Asus ENGTX 470
Kingston 2 GB ram (2 sticks)
Samsung DVD-Writer
LG1960SR Monitor


Thanks...
September 15, 2010 5:36:49 PM

Nvidia Recommendation is 550w so if your system not over clocked you fine.
a b ) Power supply
September 15, 2010 9:17:54 PM

A GTX470 needs 240W (at full load) from your power supply. The Thermaltake ThoughPower 650W can deliver 624W on the +12V output, which is responsible for feeding the most power-hunger components of your computer: graphic card and cpu. So don't worry. You have much more power than needed. As arkadi said, a 550W PSU would be enough.
Thermaltake: http://www.realhardtechx.com/index_archivos/Page680.htm
a c 144 ) Power supply
September 15, 2010 9:29:25 PM

anroin said:

The thing is,when I turn on my computer (with the order, UPS-case-monitor) it feels like there's no response for a short time -the monitor first turns on and after a few seconds off- than I hear the beep sound from the chasis and the system boots up.

Not unusual. It takes a few seconds to complete the POST.
!