Low -5.00V, normal?

NeedQuietPC · Post by **NeedQuietPC** » Fri Jun 25, 2004 9:35 pm

I just installed an Enermax Noistaker (370W) and noticed that Motherboard Monitor detects my voltages as:

Core 0: 1.73 V
Core 1: 1.25 V
+3.3: 3.33 V
+5.00: 5.08 V
+12.00: 12.40 V
-12.00: -12.27 V
-5.00: 3.60 V

Take a look at the last line, "-5.00" is 3.60? Is this something to worry about? After installing the PSU, my BIOS freezes at the "Hardware Monitor Setup" screen (where the temperatures and fan speeds are listed). Is this somewhat related?

I replaced this 370W with my old 300W PSU, so there should be plenty of juice in the new PSU to power everything in the system.

Any help appreciated.

msm_zgok · Post by **msm_zgok** » Fri Jun 25, 2004 10:52 pm

MBM says 0.00 for mine (using Generic "Turbolink" 350W PSU)

I asked aabout this on the OCforums and some guy told me that I shouldn't worry about the -12 and -5 lines ???

Post by **MikeC** » Fri Jun 25, 2004 11:02 pm

It's true, they're not important, and the board sensors could also be wrong.

dukeman · Post by **dukeman** » Sat Jun 26, 2004 4:28 am

mine also reads -3.55v.

never had any problems with this supply.

Viperoni · Post by **Viperoni** » Sat Jun 26, 2004 6:33 am

A quick search would reveal that these lines are never used in modern ATX motherboards, and because they have no load on them, they produce erratic voltages.

NeedQuietPC · Post by **NeedQuietPC** » Sat Jun 26, 2004 9:52 am

Thanks for the assurance guys. After installing my new PSU, my system would freeze once I enter the "Hardware Monitor Setup" window in the BIOS so I was wondering if it could've been a bad PSU.

Post by **MikeC** » Sat Jun 26, 2004 10:35 am

freeze... hmmmm. Double check your connections?

NeedQuietPC · Post by **NeedQuietPC** » Sat Jun 26, 2004 12:34 pm

I've tried resetting the CMOS, the siren emits saying "CPU fan is not running". If I ignore that message, WinXP Home boots up fine and Motherboard Monitor detects the fan speeds and temperatures OK.

There's a total of three fan connectors on the board: CFAN1, PFAN1, and SFAN1. I've tried...
#1 - Connecting a high RPM fan into the CFAN1 and CPU fan ran on PFAN1. Still freezes...
#2 - Connecting a high RPM fan into CFAN1. CPU fan ran on a molex. PFAN1 and SFAN1 are empty. Still freezes...
#3 - CFAN1, PFAN1, SFAN1 all empty, CPU fan connected to molex only. Still freezes...

Which other connection(s) is/are worth checking?

Thanks!

NeedQuietPC · Post by **NeedQuietPC** » Sat Jun 26, 2004 3:47 pm

Another update... I've flashed my BIOS to the latest version, still freezes though...

Deheinx · Post by **Deheinx** » Sat Jun 26, 2004 7:33 pm

Can you just disable monitoring in the BIOS?

NeedQuietPC · Post by **NeedQuietPC** » Sat Jun 26, 2004 7:45 pm

Is there a way to disable monitoring the -5.00 voltage?

I think I may have found the problem after extensive web searching. It's PSU related...
http://www.msi-polska.pl/program/e_serv ... &faq_id=97

MSI doesn't have the latest BIOS for my board that solves this problem unlike in the link. I was a bit fishy why my "-5.00" voltages were kinda low.