PSU Fan not working

[z3n]

Heya guys,

I have a hardware problem.... YIKES !

Recently I just purchased a new comp.

All seemed well until the fan on my SP 500 watt psu stopped working.

I contacted the shop and they offered to send me a replacement psu (sp 400) while I send the other back to be inspected.

It got here - I put it in and got it all working..... only the fan isn't working on this one either !!

I'm begining to think it may be a problem with my motherboard which supports cool n quiet, but I have it disabled in BIOS.

My MB is an A8N-SLI Deluxe http://www.i-tech.com.au/products/1279_Asus_A8N_SLI_DELUXE_nFORCE4_SLI__2xPCI.asp

I'm also running an Athlon 64 939 Venice core chip.

I've taken both PSU's out of the case and run them indipendant of the computer to no avail.

I can't work out whats going on, outside of a bizaar coincidence ??

Thanks in advance for anyone who can solve this riddle.

[FastGame]

So the PS doesn't even work out of PC ? hmm

I checked on your MB and didn't see any problems of this sort, keep us posted if you find out.

[z3n]

Will do Fastgame - Thanks for having a look for me, appreciate it.

The only thing I can think of is either the second replacement PSU fan was damaged on the journey here - or - the Antech Smart Power PSU's don't like somehting on my sytem ( e.g. Cool and quiet tech.

I read something about a psu fan problems with duel core chips running SP2.

I'm not running duel core, but I'm running a 939 pin chip, so I'm duel core compliant.

Anyway, will post my solution.

Thanks again Fastman ;)

[z3n]

O.K. after some serious inspection and stuffing around, I have been informed by Antech that Smart Power fans in Smart Power Supply Units, only come on after the hot pot reaches a certain temperature.

I have been sending power supplies back and forth over the country for the last month.

The company I bought it off had no idea, and I had no idea.

It had to go all the way back to Antech to be cleared and inspected before they mentioned - "Oh - btw - the fan doesn't come on til it gets hot".

I feel very silly, but think this whole mess could have been solved with a simple phone call.

:o

[zipp51]

The power supplies are smart,not the people that support them.LOL.:D Glad you got it sorted out and it will serve as good information here at TZ.

[FastGame]

Interesting....All my PS are Antec's, guess they don't have smart fans.

Thanks for the update ;)

[joshsiao]

Well, thats good. Its power saving...