Jump to content

Is this pico psu any good?

Nicnac

https://www.amazon.de/Power-Supply-Motherboard-compact-systems/dp/B079YPCJ2K/ref=wl_mb_wl_huc_clickstream_3_dp?ie=UTF8&pd_rd_r=TAKA537CA61TAJSX1EP1&pd_rd_w=w55fl&pd_rd_wg=bFdw8

 

Pico psus really seem to have their own world...

Anyone heard anything about this brand/ psu?

can you trust it to deliver even 200W?

There aren't a whole lot of good, high quality pico psus on the market except that hdplex 400w model that NFC uses.

Any other recommendations for a pico psu?

Folding stats

Vigilo Confido

 

Link to comment
Share on other sites

Link to post
Share on other sites

It looks really suspicious, just saying. 

CPU: Intel Core i7-950 Motherboard: Gigabyte GA-X58A-UD3R CPU Cooler: NZXT HAVIK 140 RAM: Corsair Dominator DDR3-1600 (1x2GB), Crucial DDR3-1600 (2x4GB), Crucial Ballistix Sport DDR3-1600 (1x4GB) GPU: ASUS GeForce GTX 770 DirectCU II 2GB SSD: Samsung 860 EVO 2.5" 1TB HDDs: WD Green 3.5" 1TB, WD Blue 3.5" 1TB PSU: Corsair AX860i & CableMod ModFlex Cables Case: Fractal Design Meshify C TG (White) Fans: 2x Dynamic X2 GP-12 Monitors: LG 24GL600F, Samsung S24D390 Keyboard: Logitech G710+ Mouse: Logitech G502 Proteus Spectrum Mouse Pad: Steelseries QcK Audio: Bose SoundSport In-Ear Headphones

Link to comment
Share on other sites

Link to post
Share on other sites

5 hours ago, Nicnac said:

Pico psus really seem to have their own world...

Anyone heard anything about this brand/ psu?

can you trust it to deliver even 200W?

There aren't a whole lot of good, high quality pico psus on the market except that hdplex 400w model that NFC uses.

Any other recommendations for a pico psu?

If you need 200W, you should get a FlexATX PSU or something like that.

 

Most of the Pico PSU are pretty shitty and should be avoided. Because you need space to have something really good. You don't have that.

That's why you find open Frame modules in more reputable smallest form factor/book size PC cases.

"Hell is full of good meanings, but Heaven is full of good works"

Link to comment
Share on other sites

Link to post
Share on other sites

The Pico PSUs from Mini-Box are the only ones I've seen (so far) that are worth a poop.  

 

They're generally so good that they're often counterfeited.  Much in the same way Meanwell PSUs are often counterfeited.

 

Link to comment
Share on other sites

Link to post
Share on other sites

That "power supply" simply takes in 12v from some source (another atx power supply, a laptop adapter that outputs 12v etc) and produces the other voltages that the computer expects (3.3v and 5v). So basically it's a bunch of DC-DC converters on the circuit board with the 24pin connector.

The 12v is simply passed through, from an existing power supply - they advertise this as to be used for mining - you have a single 1200-1600w power supply that produces a lot of power on 12v, and you can use one of these with each motherboard instead of using separate stand alone power supplies with each motherboard.

 

The power supply is NOT 250w... basically the 250w is what they think it can flow through the various wires on the circuit board and the connectors it creates, to a computer. The tiny circuit board can probably create up to around 30-50w on 3.3v and around 50w on 5v , and the 12v simply passes through untouched.

 

However, the input to this circuit board is simply two relatively thin wires (probably AWG16), which I'd say are rated for around 12-14A ... that would mean they're safe to use for 12v x 14A = ~ 170 watts. But, it doesn't matter, there's another weak point.

The wires go into a standard 6pin pci-e connector, because they mean for you to power this tiny power supply from a 6pin or 8pin pci-e connector from a bigger atx power supply. The individual contacts inside this standard MiniFit-Jr connector (the 6pin pci-e connector) are only rated for 9A so this tiny power supply should not suck more than 12v x 9A = ~ 110 watts from that connector, or it may be damaged (the contacts could overheat and the connector may melt or become loose).

So, unless you modify this power supply to put more wires between the 6pin pci-e connector and the power supply (use more contacts in the 6pin pci-e connector, you only have up to 9A per pair of contacts), this power supply shouldn't really be used for more than 100-120 watts... even though in theory, from an electrical point of view (metal traces thickness on the circuit board, number of connectors etc) it's true that it could "transfer" up to 250w to a computer.

 

Link to comment
Share on other sites

Link to post
Share on other sites

12 minutes ago, mariushm said:

That "power supply" simply takes in 12v from some source (another atx power supply, a laptop adapter that outputs 12v etc) and produces the other voltages that the computer expects (3.3v and 5v). So basically it's a bunch of DC-DC converters on the circuit board with the 24pin connector.

 

You're assuming OP doesn't know this while the rest of us do.

 

Just in case you're right and the OP doesn't know this is just a DC to DC PSU:  http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=207

 

Back to my point:  You can have a DC to DC with poor regulation and no protection as well as an inability to support as much power as advertised (much like many desktop PSUs).  

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×