Is a 130w PSU enough for this build?

Ben Cole · 24 May 2011 at 12:45

I have used a PSU calculator and it arrives around the correct mark but was just wondering what you guys think.

i3-540
Gigabyte Mini-ITX mobo using the integrated graphics with the i3.
Single 5400rpm HDD.
2x2Gb DDR3 RAM

I have bought a case and PSU from the MM (yet to be delivered) thinking I'd put my Atom/ION mobo in there but it got me thinking that if I underclocked the i3 it might work.

Also just bought an OCZ Agility in the deal of the day, this would reduce demand on the PSU too so I could stick that in instead.

Thoughts would be most appreciated.

Legion · 24 May 2011 at 15:42

You won't have to downclock or undervolt the i3-540 using the integrated gfx,it will work just fine with the 130w psu!

People vastly over estimate just how much power is needed for m-itx systems.

Borden · 24 May 2011 at 15:52

I have the spec below:

i5 2500k
Intel DH67CF ITX mobo using integrated graphics
2x2gb ddr3
Samsung F3 1tb
OCZ Vertex

I did some power readings recently. At idle it used about 25-30w. At load (prime95) it got to 110w and no higher. You should be fine!

Ben Cole · 24 May 2011 at 17:07

See now that's the kind of input I wanted!

Thank you both very much.

d_brennen · 24 May 2011 at 17:09

I have built an AMD Athlon II x4 system on a 150w Pico and I'd have thought your setup would need less juice

Ben Cole · 24 May 2011 at 18:08

Reckon I could run a slimline bluray off there as well?

Cycrow · 24 May 2011 at 19:43

yeah it'll be fine.

its the dedicated gpus that take most of the systems power.

most drives, harddrive and opticals really dont use much power

Ben Cole · 25 May 2011 at 07:27