What PSU for a ivybridge, without gpu?

JonJ678 · 21 Apr 2013 at 17:27

The current quad core chips have a TDP of 77W. If the computer doesn't need a dedicated graphics card, then motherboard/ram/ssd are unlikely to take the total power to much over 100W.

Pico PSU's are an option at that range, but I don't believe they're especially reliable (relative to seasonic et al). Most atx supplies start at 400W, which seems excessive for computer that will struggle to hit a quarter of that.

Is there a good option out there?

implosiveturnip · 21 Apr 2013 at 17:46

If you are using the iGPU, then your cpu will use more than the 77w, especially in turbo. I say get the most efficient 350 watt supply you can buy. There's some good ones around. I saw some hybrid modular Be Quiet ones whilst looking for a PSU for my HTPC. I'm sure in the item spec it said they were 88% efficient at 50% load or something.

Not sure if OCUK stock them; have a sniff around.

RJC · 21 Apr 2013 at 17:52

You could look at a 150w power brick like the one below:

http://www.overclockers.co.uk/showproduct.php?prodid=CA-019-SR&groupid=2362&catid=2382

or just go with a low wattage ATX power supply like the Antec 350w PSU:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-173-AN&groupid=701&catid=123&subcat=2462

implosiveturnip · 21 Apr 2013 at 17:56

Can't go wrong with a Seasonic

http://www.overclockers.co.uk/showproduct.php?prodid=CA-020-SS&groupid=701&catid=123&subcat=2462

EDIT: 5 year warranty too; the antec above only has 2.

JonJ678 · 21 Apr 2013 at 18:02

A decent 400w psu costs about £45. A pico psu and brick is a bit more.

I feel there should be a well made, cheaper option available when the wattage needed is so low. I doubt I'll use the on board graphics either, only really needs an ethernet cable.

edit: There are a number of 1U 150W supplies out there which look roughly appropriate