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Thread: CPU voltages

  1. #1
    Join Date
    Jan 2007
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    CPU voltages

    Mesh Matrix XP1800+ 512K DRAM PC2100 133MHz

    ASUS A7N8X2.0 Rev 2.0
    Chipset NVIDIA nforce2 Ultra400

    Phoenix Technologies
    version ASUS A7N8X2.0 deluxe Rev. 1005

    machine recently upgraded with
    a. XP2600+ processor
    b. 2.0GMB PC2700 333 MHz,
    c. 2nd hard drive 80GB
    d. NVIDIA GEFORCE4 Ti 4800 SE

    Operating system Windows XP Home

    Recently been having blue screen crashes
    Found faults on two DDRAM units out of three, using the Microsoft Memory Diagnostic programme
    The memory units were replaced (running OK so far)

    The following voltages were obtained from Speedfan (Page…..Readings)

    Do these voltages look OK?
    Concerned about the +12v & -5v figures

    CPU Core 1.62v
    Aux 1.62v
    +3.3v 3.28v
    +5v 4.89v
    +12v 11.67v
    -12v 11.88v
    -5v 4.62v


  2. #2
    Folding Flunkie Webby's Avatar
    Join Date
    Sep 2007
    245 times in 229 posts
    • Webby's system
      • Motherboard:
      • Gigabyte G33M-DS2R, Swiftech MCW30 Northbridge Cooler
      • CPU:
      • Intel Core 2 Duo E6550 @ 3.5GHz, Cooling D-Tek Fuzion V2
      • Memory:
      • 2GB OCZ Flex DDR2 PC2-9200 5-5-5-15 @ 1000MHz 4-4-4-12
      • Storage:
      • 2x 250GB WD SataII
      • Graphics card(s):
      • Sapphire HD4870 512MB, Cooling Swiftech MCW60
      • PSU:
      • Corsair HX520w
      • Case:
      • Silverstone Tremjin TJ06 - Modded for Water Cooling Goodness
      • Operating System:
      • Windows XP Pro SP3
      • Monitor(s):
      • 22" Widescreen Cibox C2201 (with DVI input)
      • Internet:
      • 8Mb/s ADSL

    Re: CPU voltages

    Unless you measure the voltages directly with a multimeter the best that a program like speed fan will tell you is if the voltages have changed over time.

    Let me explain that a bit better. The sensors that are being reported by Speedfan are not calibrated as such you can not take the values they report to be correct. At the most you could check them now and then if they were different in a month you would know that something was changing. The only way to really check your voltages is to use a multimeter.

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