Can I use the PCIE socket power to power sata hard drives?
reddit / selfhosted

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Huldmer · 2023-12-18 20:41

This might sound crazy but a PCIE socket can deliver up to 75 watts
correct? Is there such an adapter that can adapt that to sata power?

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Legitimate_Farm_3095 · 2023-12-18 21:07

wrong sub

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msanangelo · 2023-12-18 21:21

sounds like a topic for r/diyelectronics.

is there an adapter? probably not but you can make one. just need a
pcie socket, some sata power plugs, and a 12v to 5v converter for the
5v logic of the hard drives and ssds. the 12v can go straight to the
drives for ya know, the 12v stuff.

not hard really.

you can technically get 300W out of a 6 pin but I wouldn't push it
that high for long. I had to do the thinky part when I planned how to
run a 3070 in my desktop with only a 6pin available. bit off topic
here though.

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NikStalwart · 2023-12-19 00:35

> This might sound crazy but a PCIE socket can deliver up to 75 watts
correct? Is there such an adapter that can adapt that to sata power?


Uhm, yes? Lots of them? I have such a card in my x4 slot. Not sure
which brand, probably some relatively inexpensive no-name.

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Huldmer · 2023-12-19 00:36

could you link one or tell me what to google to find it? i'm probably
doing this wrong because when i google "pcie socket to sata power
adapter" nothing comes up

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NikStalwart · 2023-12-19 00:38

Look up "pcie to sata expansion card"

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Huldmer · 2023-12-19 00:38

those are for the actual sata data connector. i want sata power

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NikStalwart · 2023-12-19 00:41

*Oh*. Fair enough. Not sure about that, then. Hasn't been an issue for
me yet. I *vaguely* remember some discussions of power splitters on
/r/datahoarder. Maybe give them a try?

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Huldmer · 2023-12-19 00:43

yeah i might go that route. i ordered an optiplex and its not even
here yet but im just planning for all possible scenarios because im
worried it wont come with a sata power cable at all. if its even got
one then id be able to split it into 4 and that'll be enough for the
next couple years id imagine

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kmisterk · 2023-12-19 06:27

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