VOGONS

Reliable cheap Power Supply in small form factor?

Topic actions

First post, by radivx

Posted on 
User metadata
Rank Newbie
Rank
Newbie

Hi,
I'm looking for a solution to power my collection retro pragmatic computers in the Socket 7, Slot 1, Socket 370-range.
I am designing a 3D printed case from scratch and ideally I would like to be able to incorporate something of a smaller form factor, looking into SFX and FlexATX PSUs.
Does anyone have any suggestions of reliable and decent quality power supplies that is still in production for a reasonable price?

Also what solution do people use to restore the -5V on modern ATX power supplies when using AT-adapters?

--
V

Reply 1 of 1, by DaveDDS

Posted on 
User metadata
Rank Oldbie
Rank
Oldbie

FWIW, I personally stay away from SFF PSUs if I can - Standard form-factor PSUs are readily available "everywhere", and unless things have standardized more, the systems I have with SFF PSUs are vendor specific, which can make them tough to replace.

Take for example my main server - this is an older SFF Dell and after the PSU died, it has a normal form-factor PSU mounted on the outside of the cover - because I couldn't find an SFF PSU to fit it.

Esp since you are making a case - there are ways to fit standard PSUs in with boards in fairly small spaces (and you can even keep the ability to use full-height cards!)

For -5 ... this is always a very low current rail. I usually just use a simple -5v regulator (like a 7905) on the -12v rail.

- Dave ; https://dunfield.themindfactory.com ; "Daves Old Computers" ; SW dev addict best known:
ImageDisk: rd/wr ANY floppy PChardware can ; Micro-C: compiler for DOS+ManySmallCPU ; DDLINK: simple/small FileTrans(w/o netSW)via Lan/Lpt/Serial

Go to top of page Go to top of page
Back to General Old Hardware
Close window
Close window