12v Rail Question

Wiggins · 15 Aug 2007 at 18:51

I have a constant output of 12.10v running through the 12v Rail when idle.

When I start gaming or encoding the rail lowers down to 12.3v.

Is this normal of a PSU to do this?

helmutcheese · 15 Aug 2007 at 18:52

Hmm 12.3 is higher than 12.1 m8, and thats all within specs and to get correct readings you need use a digital multimeter not software.

Wiggins · 15 Aug 2007 at 18:54

*** Scratches Head***

Even the Bios shows it as 12.10v :confused:

I wonder if the bloke over the road has one :rolleyes:

helmutcheese · 15 Aug 2007 at 18:59

12.10 (12.1) is lower than 12.30 (12.3) so if rails go up when on load thats good, better than lowering, a Meter is only real way to get correct volts, read at idle then on load, run 3d mark and then prime etc so you test all 3 rails.

Wiggins · 15 Aug 2007 at 20:52

Sorry I meant to say the rail goes down to 12.03v when under load and it sticks at 12.10v when idle.

Nullvoid · 15 Aug 2007 at 20:58

The ATX specs allow for a 5% tolerance in the 12v rails, therefore as long as the value is between 11.4 & 12.6 volts, you are fine (although figures right at the limits are clearly undesirable).

Wiggins · 15 Aug 2007 at 21:03

Thank You Nullvoid