quick question on psu

sidecar · 12-12-2006, 03:43 PM

hi,
just need to know how to turn on an atx psu with the psu out of case and on the bench. trying to use it for app. other than computer.

thanks in advance,

sidecar

**UncleMacro** · 12-12-2006, 04:17 PM

All you have to do is short the green wire on the main 20/24 pin ATX cable to any ground (a black wire). According to the ATX spec, the PSU should work fine with no load. Crappy PSUs have been known to occasionally kill themselves when powered up unloaded but it's very rare.

I've used ATX PSUs in electronics projects. You might take a look at my page on the subject if you haven't done it before. Some PC PSUs can be a little persnickety compared to regular power supplies.

sidecar · 12-12-2006, 04:45 PM

hi,

thanks unclemacro, that's just what i needed. your site has lots of info there that will be helpful in my little projects.

thanks again,

sidecar

12-12-2006, 03:43 PM	#1 (permalink)
sidecar Registered User Join Date: Nov 2006 Posts: 53 OS: xp pro	quick question on psu hi, just need to know how to turn on an atx psu with the psu out of case and on the bench. trying to use it for app. other than computer. thanks in advance, sidecar

12-12-2006, 04:17 PM	#2 (permalink)
UncleMacro Moderator Join Date: Jan 2005 Location: San Diego Posts: 2,123 OS: WinXP My System	All you have to do is short the green wire on the main 20/24 pin ATX cable to any ground (a black wire). According to the ATX spec, the PSU should work fine with no load. Crappy PSUs have been known to occasionally kill themselves when powered up unloaded but it's very rare. I've used ATX PSUs in electronics projects. You might take a look at my page on the subject if you haven't done it before. Some PC PSUs can be a little persnickety compared to regular power supplies. __________________ Last edited by UncleMacro : 12-12-2006 at 04:22 PM.

12-12-2006, 04:45 PM	#3 (permalink)
sidecar Registered User Join Date: Nov 2006 Posts: 53 OS: xp pro	hi, thanks unclemacro, that's just what i needed. your site has lots of info there that will be helpful in my little projects. thanks again, sidecar