12v rail can't detect w/ hardware monitors?

[aeroes]

I'd just recieve a new motherboard that send to me by ABIT due to RMA. Im wondering, when I open the windbond hardware monitoring its beeping like hell! I've seen the 12v+ has dropped to 9volts?? The PSU Im using is not even a month old and Ive tried it in my other rig and it works fine. I also tried installing the Motherboard Monitor 5 and Ive seen the 12v as 0...The rest works fine except for the 12volts rail...



Does anyone encountered this? i appreciate your help guys.

[aeroes]

**Bump**



**Please help**

[ogre]

have you used a multi-tester to confirm if your 12V rail is running at 9v?



it would be easier if you post what your specs are(the whole caboodle, including your PSU)

[aeroes]

Here's my specs:



Pentum 2.4C Vantec Aeroflow

ABIT IS7

Maxtor sata 80g

DVD Writter NEC 2500A

CD Writter LG

Sony Floopy Drive

Powercolor 9600 Pro Bravo

5 Fans, 1 Cold Cathode

Thermaltake 480watts

Aerogate II



I don't have a multi-tester but the PSU works fine...I've tried it to the other rig na-de-detect naman yng 12volts rail... I've tried to install and un-install cycles of Windbond hardware monitor and Motherboard Monitor 5 'coz I thought its just the software issue but it didnt help...

[ogre]

are you using the latest bios?



if you have no problems on your rig other than the 12v monitoring, just disable the 12v monitor. i've experienced a similar thing on my 3.3v rail but on a different board.



you can also have your PSU checked just in case, there's a psu thread in PPC, search for it na lang

[aeroes]

Yes, the bios is updated. No problem other than the 12v monitoring...Is this a motherboard problem? If it is, then RMA is on it's way...

[baktol]

I got my repaired HEC 500W from Rsun yesterday and I noticed that OCCT 3.1.0 detects my 12V as 6.8V only.  I don't notice anything wrong with my PC except for that 6.8V reading. 

I'm now on Windows7 x64 and I was wondering if it's a compatibility issue between OCCT and the OS.  I'm using the official J&W BIOS for my Emaxx mobo (see my sig for PC specs) and I am quite sure that OCCT used to read 11.xx back when I was using WindowsXP 32-bit.  I tried to see what the BIOS reading was but the BIOS doesn't seem to have any h/w monitoring for 12V. 

Thing is, when I installed Windows7 (and before I took my HEC in for warranty), I never bothered to install any H/W monitoring tools so I'm not sure if the 6.8V reading was because of the new OS or if it's because of a shabby repair job on my PSU.

I'll check the voltages with a meter later.  Hindi ko lang nagawa kasi late night ko na kinabit yung PSU.

[baktol]

^

BTW, my question is: is it hardware or an OCCT + Win7 problem?

[splerdu]

I suspect that's a software problem. There's no way your computer would even post, let alone boot if your 12V rail was really putting out just 6.8V.

[Louie]

Ditto. If you have a multimeter you can try to confirm.

[baktol]

I got 12.xx volts from one the molex connectors using a multitester.  Is there a possibility that the voltage reading from the molex connector is different from the one in the ATX (20+4) pin connector?  HEC Raptor R500 has dual 12V rails.

[baktol]

^

my bad, the 300W and 350W models lang pala ang may dual 12V rails.