What's the lowest power 80+ PSU available?

Felger Carbon · Post by **Felger Carbon** » Sat Dec 16, 2006 7:16 am

My computer draws 82W from the wall socket using an old-style inefficient PSU, so my actual load exclusive of the PSU is ~5xW. So I need a low-power PSU to get the benefit of the 80% efficiency at 20% of max power specification.

So far, 380W is the lowest-power 80+ PSU I know of.

Aris · Post by **Aris** » Sat Dec 16, 2006 8:02 am

seasonic makes an 80plus 300w sfx PSU, but so far i havnt seen it for sale in retail channels.

other than that, i think the seasonic 380 is the lowest.

Power bricks and DC/DC converters would probably be "80 plus effeciency", and you can get them pretty much as low as you want.

Sooty · Post by **Sooty** » Sat Dec 16, 2006 10:36 am

Just checked and there's a lot of PSU's qualified now: http://www.80plus.org/manu/psu/manu_psu.htm HP make the smallest (240w), but Googling the s/n, doesn't look like it's retail.

jaganath · Post by **jaganath** » Sat Dec 16, 2006 11:16 am

seasonic makes an 80plus 300w sfx PSU, but so far i havnt seen it for sale in retail channels.

atxcases.com has it for $65 + shipping:

http://www.atxcases.com/item.asp?referid=162164&id=3696

case-mod.com usually has it as well, but they're sold out at the moment.

rei · Post by **rei** » Sat Dec 16, 2006 1:11 pm

That's a more efficient version of the PSU in the Antec NSK3300 that I'm planning to get this week. I need somewhere to get the 350W one then I'll sell my 300W (maybe non-80plus) one.

rei · Post by **rei** » Mon Dec 18, 2006 8:45 pm

Seasonic doesn't respond to their emails from me but ATXCases.com was good enough to get back to me with a "late January" timeline on when the 350W SFX PSU will be sold.

McBanjo · Post by **McBanjo** » Mon Dec 18, 2006 9:36 pm

http://www.silentpcreview.com/article601-page1.html

Post by **Ralf Hutter** » Tue Dec 19, 2006 6:50 am

rei wrote:ATXCases.com

CONSUMER WARNING!!!!

"atxcases.com" is one of the lowest rated sites ever over at resellerratings.com. They've been getting extremely poor ratings for over 7-8 years now. I haven't seen anyone mention them for a while, but the red flag popped up when I saw it in your post. I figured they had finally gone out of business.

*Be very careful about ordering anything from them.*

rei · Post by **rei** » Tue Dec 19, 2006 6:41 pm

thanks. their website appears much too generic and part of me was thinking it might be dodgy.

Kremmit · Post by **Kremmit** » Tue Dec 19, 2006 11:43 pm

Jameco has the Seasonic SS-300SFD 80plus for $66.05. Site claims they're in stock.

Jameco part# 652594CG

rei · Post by **rei** » Wed Dec 20, 2006 5:12 pm

I sent off a pleasantly-worded inquiry to Jameco to see if they have any plans to stock the 350W one. We'll see.

Melluk · Post by **Melluk** » Fri Dec 22, 2006 7:59 pm

I'm with McBanjo.

Look no further