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tvout · 03-11-2006, 21:39

I've just popped out to Maplins and bought a PSU tester...

This is what happened...

Plugged power lead into PSU, plugged 20 pin connector into tester. It beeped, lit two leds at first:
+12V
+5VSB

After a second the +12V led died, leaving only the +5VSB lit
The other 5 leds didn't light (+3.3v, -12v, PG, -5v, +5v).

Sounds like it's a new PSU...

---------- Post added at 20:39 ---------- Previous post was at 20:26 ----------

One thing I've noticed that I hadn't seen before. On the back of the PSU there's a small hole for a small DC jack plug (12v) and a square 4 pin connector from the PSU onto the motherboard which says AUX12V & 12VATX next to it? Is this some kind of extra power output from the PSU which is somehow monitored by the mobo?
Would it matter if I bought a new PSU which didn't have this extra connector, just the 20 pin one?

03-11-2006, 21:39	#8
tvout Inactive Join Date: Aug 2006 Location: West Midlands Services: VM L Broadband (10MB) XL TV V+ HD Box Off peak caller phone HTC Wildfire on T-Mobile UK Freeview Posts: 600	Re: pc - determining cause of death I've just popped out to Maplins and bought a PSU tester... This is what happened... Plugged power lead into PSU, plugged 20 pin connector into tester. It beeped, lit two leds at first: +12V +5VSB After a second the +12V led died, leaving only the +5VSB lit The other 5 leds didn't light (+3.3v, -12v, PG, -5v, +5v). Sounds like it's a new PSU... ---------- Post added at 20:39 ---------- Previous post was at 20:26 ---------- One thing I've noticed that I hadn't seen before. On the back of the PSU there's a small hole for a small DC jack plug (12v) and a square 4 pin connector from the PSU onto the motherboard which says AUX12V & 12VATX next to it? Is this some kind of extra power output from the PSU which is somehow monitored by the mobo? Would it matter if I bought a new PSU which didn't have this extra connector, just the 20 pin one?