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Thread: Negative 5 volt line question

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    Question Negative 5 volt line question

    Hi, This is my first post on the forum. I've been reading the reviews and posts for a couple weeks now and it helped me to decide on purchasing a Corsair 620 watt power supply.

    I just got done installing it and it is working great. The voltages are much closer to spec than my old Antec supply. I started my Abit hardware monitor to check the voltages and when I did the alarm went off. I checked each monitor and found that it was reading the -5v line as having a +3.5v. I'm thinking either something is wrong with the power supply or something is wrong with the Abit monitor.

    I went in to the bios and looked at the readings there and it shows a 0.00v reading on the -5v.

    Should I be worried about this? All seems to be working fine. How can I tell if it is a monitoring problem with the motherboard vs a problem with the power supply?

    Any help would be greatly appreciated.

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    The -5 was dropped about a year ago. It can be found in the revisions at http://www.formfactors.org/
    The -5 served some ISA cards, old PCI sound cards and some on board sound for MSI mainboards. I'm not absolutely positive but just trying to recall.
    The -5 is the #14 port in the 20/24 ATX shell, the wire is/was white.
    The -12 is soon to go as it does not serve any real purpose now.
    Worth a good looking over. http://www.badcaps.net/

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    Thanks for the reply. I did some research this morning (when I wasn't so tired) and realized that the specs on the box don't list a -5v rail. Instead there is a 5v vsb rail. I'm not going to worry and have just turned off the monitoring of the -5v rail on my Abit hardware monitor.

    Just for my education what is the 5v vsb rail - what does the vsb stand for?

    Thanks again for your reply. It confirms for me that there's nothing to worry about.

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    Quote Originally Posted by Mcraiga View Post
    Thanks for the reply. I did some research this morning (when I wasn't so tired) and realized that the specs on the box don't list a -5v rail. Instead there is a 5v vsb rail. I'm not going to worry and have just turned off the monitoring of the -5v rail on my Abit hardware monitor.

    Just for my education what is the 5v vsb rail - what does the vsb stand for?

    Thanks again for your reply. It confirms for me that there's nothing to worry about.
    -5V= 5 VOLT STANDBY
    MSI P67A-GD65
    i72600K@4.8
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    -5 is NOT 5vsb.

    If the PSU is plugged into the mains and it's switch is on (1=on, 0=off) the 5vsb will be hot. It serves to wake the system from stand-by or wake on LAN.
    Worth a good looking over. http://www.badcaps.net/

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    Quote Originally Posted by GalvanizedYankee View Post
    -5 is NOT 5vsb.

    If the PSU is plugged into the mains and it's switch is on (1=on, 0=off) the 5vsb will be hot. It serves to wake the system from stand-by or wake on LAN.
    5vsb is not 5 Volt standby
    Oh I see, I inserted the {-}
    MSI P67A-GD65
    i72600K@4.8
    Corsair H70
    4x4Gb GSkill Ripjaws 16Gb 1600
    MSI 670 GTX PE/OC
    2x750Gb Seagate Barracuda's RAID 0
    Zalman ZM-MFC1
    Lite-On Dvd burner
    SB X-FI Xtreme Gamer Fatal1ty Pro
    Silverstone Zeus ST85ZF
    Coolermaster HAF-932
    "Experience is the benchmark of maturity"

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