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Mini-Box picoPSU-80 80 watt PSU $20 w/FSSS @ Amazon

jkilez 704 January 6, 2013 at 01:41 PM in Computers (3) More Amazon Deals
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Mini-Box picoPSU-80 80 watt power supply for $20 shipped at Amazon: http://www.amazon.com/gp/product/B005TWE5E6

Normally $25 + Shipping at mini-box.com. Requires an external AC adapter.

This is best power supply for low power mini-ITX rigs. Extremely energy efficient with no fans to add noise. It only has a couple of power connectors so it really is just for an HTPC, firewall, or small NAS set-up.

Specs:
- Power connectors: One 4-pin molex, one SATA, one 20 pin ATX power
- Low heat dissipation
- High efficiency at light loads (Intel Atom)
- 96% efficiency
- 80 watts, 12V input
- Configurable wire harness
- P4 Mini cable can be used for onboard P4 connection
- OSCON / POSCAP capacitors, Japan

The AC adapter needed is similar in specs to most LCD power supplies. If you are lucky you have an old one already from an ancient monitor. If not, you can get this 12V 6A unit [amazon.com] for only $8.25 w/FSSS. Combine the two and you have a 80+ Titanium power supply for less than $30 shipped!
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#2
this is a good item, but please note it lacks the 4-pin P4 connector which many motherboards require.

P4 cables are available from mini-box for $1.25 shipped, or you could make up your own.
Edit: There is a substantial shipping charge at mini-box.com for orders under $50. (thanks, MARAUDER2003)

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4-Pin P4 Mini Power Cable for PicoPSU-80
(- 4 in. / 101 mm. in length - NOTE: Works only with PicoPSU-80)
Link [mini-box.com]
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There is a shorter cable, but I'm not sure that it works with the PicoPSU-80.
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4-Pin P4 Short Power Cable (48mm = ~1.9") Link [mini-box.com]
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#3
can this handle a core i3 2100 mini-itx system?
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#4
Quote from nedved2000 View Post :
can this handle a core i3 2100 mini-itx system?
The i3 2100 (78w at idle and 115w under load) will require too much power. This PSU is aligned with Atom and other low power processors.
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#5
That chip alone is 65w TDP.

Quote from nedved2000 View Post :
can this handle a core i3 2100 mini-itx system?
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#6
^^Agreed. The i3-2011 is a 65W part. 35W processors like the i3-2100T and i3-2120T might work, depending on the total system load (motherboard plus any drives &c).

Full load != long PSU life.

Try to keep total load under 60W </opinion>
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#7
Is this the picopsu brand? Their site says their stuff is 96% efficient.

Also, my board, a gigabyte e350 mini itx has 24 pins. Should this cause a problem?
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#8
Quote from jkilez View Post :

The AC adapter needed is similar in specs to most LCD power supplies. If you are lucky you have an old one already from an ancient monitor. If not, you can get this 12V 6A unit [amazon.com] for only $8.25 w/FSSS. Combine the two and you have a 80+ Titanium power supply for less than $30 shipped!
Anyone know the efficiency of the linked AC adapter? Remember, you're going to have losses with the AC adapter. If the AC adapter is 90% efficient then the combo will have a combined efficiency of 86.4% (.96x.90). Not bad for a low output power supply, but hardly 80+ Titanium...
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#9
I have the 160W version of this. It's amazing (and probably overkill for my little ITX system).

I use a Dell DA-2 12V 18A (216W) power supply brick modded with a barrel plug to fit into the pico PSU.
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#10
Again with the misinformation. While I don't think this will work with any system with real power (it's rated at 4A at 12V), a 65W CPU does NOT consume 65W of power. My new i3 3225 system consumes 38W under load (Prime95 and Furmark) and only 12W at idle, tested on a bench power supply feeding the power to the DC-DC psu. To the system, this is 36W or less, or 3A if it were all on the 12v rail. That is with 8GB of RAM, one SSD, and one heatsink fan. Adding an Asus soundcard boosted both idle and load by another 13W.

If one were to cap a sandy/ivy bridge i3 at 2Ghz, and possibly undervolt, the psu may work, but it's pushing the limits. I wouldn't trust its stability on this 80W psu after the psu degrades a bit with age after a year.

Quote from Tapakidney1 View Post :
Also, my board, a gigabyte e350 mini itx has 24 pins. Should this cause a problem?

You don't need the last 4 pins very often. On ITX boards, I've never had an issue with a 20-pin ATX connector on any decent power supply. I've had some power supplies just fail to work on certain boards though, even if the psu checked out with an oscilloscope. Some PSUs expect a certain load on certain pins and if it isn't there, they will shutdown after a second or so.
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#11
Quote from nedved2000 View Post :
can this handle a core i3 2100 mini-itx system?
As other posters have noted, the PicoPSU-80 is not really meant to handle full power processors--there are large PicoPSU's for those. This one is good for Atom/VIA/E350 and possibly the reduced power Sempron and Core i3 systems. It may or may not be enough for other processors.

That said, you can always check for yourself cheaply and easily by using a Kill-a-Watt power meter [amazon.com]. Just check the max wattage used when under load using something like OCCT [ocbase.com]. If you remain below 80w on your current PSU, then you should be good. When you switch to the PicoPSU, your actual max draw will be far less than 80w because it is much more efficient than a typical PSU.
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#12
i've used 80w setup for g530 system with dvdrom, 3.5" hdd, and ddr3.
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#13
You gotta pay for shipping (need to buy 50.00 or more to get f/s) for the p4 connector at mini-box.com, it comes out to less than 3.00. If you order the pico PSU and connector from them (no extra shipping), it comes to about 28.00, so in essence 5.00 more. Just pointing that out.
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#14
Been using this for about 5 years for my DIY home server. Good product.
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#15
Quote from Masejoer View Post :
Again with the misinformation. While I don't think this will work with any system with real power (it's rated at 4A at 12V), a 65W CPU does NOT consume 65W of power. My new i3 3225 system consumes 38W under load (Prime95 and Furmark) and only 12W at idle, tested on a bench power supply feeding the power to the DC-DC psu. To the system, this is 36W or less, or 3A if it were all on the 12v rail. That is with 8GB of RAM, one SSD, and one heatsink fan. Adding an Asus soundcard boosted both idle and load by another 13W.

If one were to cap a sandy/ivy bridge i3 at 2Ghz, and possibly undervolt, the psu may work, but it's pushing the limits. I wouldn't trust its stability on this 80W psu after the psu degrades a bit with age after a year.




You don't need the last 4 pins very often. On ITX boards, I've never had an issue with a 20-pin ATX connector on any decent power supply. I've had some power supplies just fail to work on certain boards though, even if the psu checked out with an oscilloscope. Some PSUs expect a certain load on certain pins and if it isn't there, they will shutdown after a second or so.

you forgot the GPU part which often takes 15-20W at max. All modern CPU should be called APU or so since it has both CPU+GPU now. To test the power draw part for GPU , one should use some program like bitcoin miner where it utilizes upto 95% GPU instead of games, movies ; use GPU-Z to see the %.
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