Power Supply Question

[rust5tyle]

Does anyone know the method of testing power supplies where you connect two of the leads in the ATX connector together? After you connect these leads and turn the switch for the power supply on, the fan in the back should come on. I have a question though: Should the fan stay on? Or should it just come on for a few seconds and turn off? The power supply I suspect of being bad is doing the second one right now and I just wanted to see if anyone knew about it. Thanks in advance.

 

[bozo1]

You connect the green lead with one of the black ones to similate the front panel on/off switch.

The powersupply needs to be under a load as well - you need to connect a hard drive or a couple of fans (one usually isn't enough). Failure to have a load connected results in the symptoms you described.

 

[Zepper]

You only connect the green and black leads MOMENTARILY! - if you leave them connected, it is just like holding the power button, the machine shuts off again.
. So the plan is to turn on the switch on the back of the PSU (AC switch) and then MOMENTARILY! connect the green and black leads. Better to get one of those little $10. PSU testing units and do it right.
. The testing units provide just enough load to keep the PSU from damaging itself for a short power-on time.
. As another wrote, if you want to leave the power on for a considerable time, you need to have a load on all the high amp rails: +5, +12 and +3.3V. At least 1A load on each.
.bh.
:moon:

 

[aka1nas]

Zepper, can you give me a linky to the kind of testing unit you are talking about? I didn't know those existed and I need to test a PSU for a lady-friend of mine in a day or so.

 

[imported_Phil]

The testing units are a good idea, but for quick and dirty, hook a hard disk and a CDROM up to the unit, and quickly touch green & black together on the connector block. That should be enough for you

(Just be careful!)

Dopefiend

 

[Zepper]

http://www.svc.com has a couple of models. The one they have listed as Antec is available generically all over the web for under $10., so you'd be paying more for the name - they're all the same. I like the other one anyway - more lights .
. Look on the Power Supply page at the bottom. BTW, svc has a first class mail w/o insurance shipping option. Great if you have the time and aren't risk averse. I've gotten my stuff w/o any problems the two times I had 'em ship that way. Makes it possible for me to get small orders from them w/o getting killed on shipping charges.
. Or you can google on- ATX power supply tester -and come up with dozens of hits perhaps nearer to you. Lots of places carry one or both of them.
.bh.
:sun: !

 

[MaDDaWg1018]

hmmm i have a power supply question of my own. my case came with a 400w powers upply that says its p4 ready, but i have an amd barton 2500+ xp and i was wondering if itll still be fine with this anyway. im thinkin that it will, and couple of my friends said the same thing, but just wanna make sure. thansk!

 

[Nebor]

You need a Barton ready powersupply man! What are you thinkin?! You're gonna fry your CPU!!!!

 

[Zepper]

Don't pull the noob's leg! Yes, dawg, 400W is plenty for any current AMD XP.
.bh.
Where's the :sun: ?