My -12V voltage rail on my power supply reads -13.01V?

[Danny]

This is on an antec 350W. The "low limit" according to winbond hardware is -13.01. Is this a problem?

 

[beatle]

Nope. Mine runs @ -7v! Nothing uses the -12v rail anyway.

 

[superHARD]

So what's it there for then?

 

[Necrolezbeast]

ain't it the ground for the 12v line?

 

[RaynorWolfcastle]

Originally posted by: Necrolezbeast
ain't it the ground for the 12v line?

As far as I know, yes. I'm not quite sure why it's called -12V.

 

[lenjack]

It is not a ground for the 12v line. It's there because years ago, computers did use the -12v line...not sure how long ago...and it's just hung around for no apparent reason.

 

[Jhhnn]

Don't worry about the -5v, either, it also does nothing. The newest atx specs at www.formfactor.org allow for elimination of the -5v, the -12v will be the next to go...

The reason that they'll often read strangely is that the psu has a very difficult time regulating a near zero current draw...

 

[Soulkeeper]

the negative voltage readings are hardly ever in spec
probably because they have no or little load on them