picopsu is this reliable?

[SailorGanyu]

im making a briefcase portable pc or like a briefcase laptop which draws somewhere close to 160w at peak usage after adding up all the components 
idk about any reliable or good brands for picopsu avaliable in india 
i found these psu by this company called big boom 
i dont want a big boom after turning it on tho 
i chose a 250W one to get a big head room so i wont head up the board or damage it after long time usage like keeping the laptop on for 15-16hrs 
im using a 12v 20A and 20AH battery to power it 

[GraysonJ90]

I do not think so. This looks very sketchy and like a scam that actually will “Big Boom” when it turns on.

[Blasty Blosty]

They really should've thought about their company name

[GraysonJ90]

3 minutes ago, Blasty Blosty said:

They really should've thought about their company name

Haha. Big Boom makes it seem like a sketchy Chinese brand.

[jaslion]

What hardware is going in it?

 

These pico psu's simply adapt 12v laptop power supplies to an atx 24pin + 4pin cpu connector.

 

If it's a very low power pc anyway then I recommend NOT using regular desktop part and just opting for a small form factor complete computer or something like a asrock deskmini. Spares you the problem of having to use a pico "psu".

 

As for this one can't find ANYTHING on them specifically. Looks like the generic drop ship aliexpress slop that I wouldn't dare touch.

[SailorGanyu]

Yea it looks sketchy asf but unfortunately i need to use some kind of psu which can run from a lithium ion battery and as for asrock desk mini i need more performance and a pcie x16 slot 

[GraysonJ90]

13 minutes ago, SailorGanyu said:

Yea it looks sketchy asf but unfortunately i need to use some kind of psu which can run from a lithium ion battery and as for asrock desk mini i need more performance and a pcie x16 slot 

This “PSU” is probably like a cousin to Gamemax. Chinese brand that isn’t reliable and probably lies about their specs.

[manikyath]

that's a hilareous brand name, but there isnt too much to them that's of major worry. we're not talking mains AC here. it's pretty much just a DC-DC converter from 12V to 5V and 3V3 and an enable signal.

 

also, if you want to run this off a battery you'll need a DC-DC converter to turn the variable battery voltage into a steady 12VDC (and if this thing claims to do 250 watts worth of DC-DC conversion, avoid it like the plague...)

 

i have a similar one that *does* do internal DC-DC conversion for 12 volts as well, but it's about 4x the size.

 

2 minutes ago, GraysonJ90 said:

This “PSU” is probably like a cousin to Gamemax. Chinese brand that isn’t reliable and probably lies about their specs.

it's a rebadge of a VERY common DC-ATX power supply, this exact module i've seen under at least half a douzen brand names.

[GraysonJ90]

1 minute ago, manikyath said:

that's a hilareous brand name, but there isnt too much to them that's of major worry. we're not talking mains AC here. it's pretty much just a DC-DC converter from 12V to 5V and 3V3 and an enable signal.

Yeah, Big Boom is pretty funny.

1 minute ago, manikyath said:

it's a rebadge of a VERY common DC-ATX power supply, this exact module i've seen under at least half a douzen brand names.

I bet it is. Still, a rebadged PSU is not a great choice and it just doesn’t even look trustworthy.

[manikyath]

2 minutes ago, GraysonJ90 said:

I bet it is. Still, a rebadged PSU is not a great choice and it just doesn’t even look trustworthy.

it's not a "PSU" as such though.. it's pretty much a miniaturized DC-DC converter for the 5 volt rail, DC-DC converter for the 3.3 volt rail, a mosfet to turn everything off, and some logic for the vareous signals on ATX.

 

you just need to be aware that these arent magical, so if you feed it garbage, it'll feed your motherboard garbage.

[SailorGanyu]

1 hour ago, manikyath said:

that's a hilareous brand name, but there isnt too much to them that's of major worry. we're not talking mains AC here. it's pretty much just a DC-DC converter from 12V to 5V and 3V3 and an enable signal.

 

also, if you want to run this off a battery you'll need a DC-DC converter to turn the variable battery voltage into a steady 12VDC (and if this thing claims to do 250 watts worth of DC-DC conversion, avoid it like the plague...)

 

i have a similar one that *does* do internal DC-DC conversion for 12 volts as well, but it's about 4x the size.

 

it's a rebadge of a VERY common DC-ATX power supply, this exact module i've seen under at least half a douzen brand names.

Yea 

Im planning to use this 

https://www.myinnovation.in/product-page/12v-lithium-ion-battery-pack-for-go-kart-e-cycle?srsltid=AfmBOoq2eEgds2qgSj_ilziuCPz1I8RRWAxcTSCIXnPnwg9i75AQ1g

 

I made a setup with a msi b650i mini itx am5 board and a r9 7900 

With the fans, storage and stuff the total wattage comes to somewhere near 160watts at peak 

I selected a 250w one to get more headroom cause i dont want to use one thats made for 160 watts and watch it heatup or catch on after 

 

Edited April 28, 2025 by SailorGanyu
More information

[GraysonJ90]

27 minutes ago, SailorGanyu said:

Yea 

Im planning to use this 

https://www.myinnovation.in/product-page/12v-lithium-ion-battery-pack-for-go-kart-e-cycle?srsltid=AfmBOoq2eEgds2qgSj_ilziuCPz1I8RRWAxcTSCIXnPnwg9i75AQ1g

 

I made a setup with a msi b650i mini itx am5 board and a r9 7900 

With the fans, storage and stuff the total wattage comes to somewhere near 160watts at peak 

I selected a 250w one to get more headroom cause i dont want to use one thats made for 160 watts and watch it heatup or catch on after 

 

You will not be able to use this board and this cpu with 250w. It simply will not work. My PC uses about 200 watts when im not doing anything, I can’t imagine opening a single application and it shuts off due to not having enough power.

[SailorGanyu]

16 minutes ago, GraysonJ90 said:

You will not be able to use this board and this cpu with 250w. It simply will not work. My PC uses about 200 watts when im not doing anything, I can’t imagine opening a single application and it shuts off due to not having enough power.

https://pcpartpicker.com/list/8wTtRV

This is the list 

there is 2x moltex connector fans too which draws 3 watts each bringing the total to 150watts 

[GraysonJ90]

1 hour ago, SailorGanyu said:

https://pcpartpicker.com/list/8wTtRV

This is the list 

there is 2x moltex connector fans too which draws 3 watts each bringing the total to 150watts 

That is still drawing too many watts. You will need more. 

[SailorGanyu]

6 hours ago, GraysonJ90 said:

That is still drawing too many watts. You will need more. 

Im confused that wattage rating is peak wattage shown for those components 150 watts in total 

Did i miss smt?

[SailorGanyu]

20 minutes ago, SailorGanyu said:

Im confused that wattage rating is peak wattage shown for those components 150 watts in total 

Did i miss smt?

Ahh nvm i see i thought the 65w given on amd website was peak but its drawing 90w at peak with boost clock 

 

So now the max power draw comes to 175?

 

Edited April 29, 2025 by SailorGanyu

[manikyath]

12 hours ago, SailorGanyu said:

planning to use this 

you see.. that's what i said, you cant hook that thing up directly to a battery pack, you need something in between to make a smooth 12 volts.

[SailorGanyu]

3 hours ago, manikyath said:

you see.. that's what i said, you cant hook that thing up directly to a battery pack, you need something in between to make a smooth 12 volts.

Yea but nvm im calling it off cause don't wanna risk damaging the components by using these kinds of power supplies from a random company