PSU Problem - low 3.3v

[behappier]

See thread http://forums.hexus.net/showthread.php?t=63197

Can you help ?

Thanks

[aidanjt]

check your 3.3V rail with a multimeter, motherboard enviromental measurement chips are well known to be inaccurate and failing. for example, my Asus motherboard shows my +12V rail to fluxuate between 11.56V and 11.68V, I tested it with a mutli-meter and there's only a 0-0.01V flux.

[behappier]

Thanks for your advice. I actually use the mobo software and compare what I had before where it was rock solid. Now it shows it fluctuating 2.8 - 3.1 and software started crashing randomly. It looks like there is definitely a problem.

[aidanjt]

I'd still check the PSU directly with the multimeter, software crashing could be attributed to anything from Windows, to CPU overheating.

[specofdust]

I've come across plenty of Tagans now that have bad 3.3 or 5.0V rails. Tagan just get worse and worse in my eyes.

Good luck getting OcUK to recognise that a weak 3.3V rail is a problem, they're terrible for most people, be surprised if they were different for you.

Deal directly with the manufacturer, tagan, but, be prepared for a wait, a few people I've known who've had to RMA tagans have waited weeks for just a response to their RMA request emails, and theres no phone support unless you live in Germany.

[farooqm]

Contact Nanopoint, they deal with the RMA's for Tagan in the UK, they sorted out my Tagan PSU RMA within 3 days. Just make sure it really is a faulty PSU as they may charge you the £14 it costs to drop off a new PSU and take away the old one (if they test your old one and its not faulty).

Overall I was impressed by the RMA procedure and am happy with my Tagan.

[behappier]

Thanks for the advice, I have contacted Nanopoint and may be able to go and swap today at their offices. Waiting for them to call me back.

[aidanjt]

Just please make sure you test it with a multi-meter, I can't stress this enough, the problem could easily be your motherboard and you will have wasted your time completely. A cheap multi-meter can be purchased from Maplins for a few quid. If you need help with checking your rails don't hessitate to ask.

[behappier]

If you need help with checking your rails don't hessitate to ask.

I've got a multimeter, where is the 3.3V ?

[aidanjt]

http://img9.exs.cx/img9/9218/auxmolex.jpg

Auxillery connector, red contact in the orange wire, black to black of course. Set the multimetter to test for 20VDC

[behappier]

Well, went to Telford to see NanoPoint. most helpful more like.

Got my new PSU installed and everything is fine, got 3.34V rock solid. V Happy.

[farooqm]

Well, went to Telford to see NanoPoint. most helpful more like.

Got my new PSU installed and everything is fine, got 3.34V rock solid. V Happy.

Glad you got this one sorted.. would have been a knightmare if all contact with Tagan warranty had been in Germany. Nanopoint handled my RMA's just great as well.