Another benchtop ATX psu.

Frogslayer

Well-Known Member
Joined
Jan 20, 2019
Messages
1,043
I finally harvested the old ATX v1 power supply unit out of my ancient 2003 dell. So far im only utilizing 4 of the 12v wires to power a battery charger. I took the cover off and blew out all the dust. Then clipped all the connectors off then bunched the wires and soldered and heat shrink the wires i used, then put heat shrink all the wires i didn't use.
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aquielisunari

Active Member
Joined
Mar 27, 2015
Messages
101
I like how these old electronics are being repurposed because they stay out of the Earth and today's mid to high end cards would laugh at 18A on the +12V rail. Just make sure you have a surge protector between the wall and the PSU should you attempt this for your first time. Today's PSU's have a lot of safety features that prevent collateral damage but the old ones can be dangerous.
 

FNTPuck

Well-Known Member
Joined
Jul 2, 2018
Messages
796
The caps can hold voltage for surprisingly long time so careful :).

Here is before and after of an old OCZ 520w I trimmed/modded for 12v PCIE only as a slave PSU.
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If you want a TON of clean reliable DC power for cheap, surplus old blade server PSUs are dirt cheap, efficient, and super powerful for the size. For ~$20 you can get a 900w of dedicated @12v from normal 110v input. If you have 220v its 1200w!!! Here is one I modded for running powerful TECs - check out that tiny footprint! Unfortunately although its silent at low amps the stock fan is crazy loud at high power draw, but since its temp sensing PWM control you can just run a normal case fan blowing through it to keep it cool and it will stay pretty quiet.
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