Thinking of switching over to M-Atx - how much power?

**OrangePeel** · 05-19-2004, 07:47 PM

Hi

For a while my Epia-V800's been coming up for extinction from the car, since it's just too slow for some stuff... I was going to go to an Epia-M, but now I'm wondering if I should just retire my old desktop board to the car, since there isn't really a space constraint...

It's a Duron 1.3GHz on a Gigabyte M-Atx motherboard. Does anyone have any idea how much power something like that might chew? In other words, would it work on an Opus 90w? I would run it with PCI sound and AGP Voodoo3 video card, 5400rpm 40GB Seagate disk, and a few USB devices...

Just thought I'd get an idea.... Save me having to chop up molex connectors to add my ammeter

Thanks

**vcbb5** · 05-19-2004, 11:31 PM

http://www.jscustompcs.com/power_supply/

http://www.mini-box.com/powersimulator.html

Wattage Calculators ^

**god_of_cpu** · 05-19-2004, 11:39 PM

I have a mAtx with onboard Geforce 4, a Anthlon 2000+ and 7200 RPM harddrive and several USB devices and it draws about 7 amps or 90 watts when running at full processing power, I use a 150 watt OPUS without problems.

**OrangePeel** · 05-20-2004, 08:15 AM

Hmm.. That first calculator reckons I need 238W... I think that thing must really err on the upside! The case it's currently in has a 250W PSU, and it has 3 HD's.. According to that calculator when I plug in what's in there.. 357W.. Oh well. I'm not worried

I changed my order to an Opus 150W. I guess that gives me enough power if I do take that path... Hmm.. Epia or Duron.. Hard choice!

**Enforcer** · 05-20-2004, 08:33 AM

I have on test a Micro ATX board with AMD XP2000, 256K memory, 2.5 harddrive and a laptop DVD rom, all running on an opus 150W, seems fine at present.