Question about ASUS P5GC-MX/1333 - Motherboard - micro ATX - i945GC - LGA775 Socket - UDMA100, Serial ATA-300 - Eth...

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I have asus p5gc-mx motherboard when i start my pc it show some mess like,,,,,00 mass storage devices found and configured ,,,,and CMOS checksum BAD ,,,,,,,,, somebody know what is this and help me to fix my pc

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Hello,
There is one person i my family who got same issue now.
Motherboard is older, he pluged in a flash disk then system went down.
Now this PC is not bootable, saying the same - CMOS checksum bad, detecking usb mass storage and that this PC will go down in 15 sec.
There is no possibility to go to BIOS to do any changes.
I unluged all disks / dvd / floppy (lol yeah still have floppy :D ) but message is still same.
I take off and put back RAM and still have same issue.
maybe nextime I will bring some ddr 2 ram to try it on mine ones if his is dead or not ..

if anybody have some solution I would like to test some yours advices.

Thanky Odin

Posted on Mar 23, 2013

  • triple_j832
    triple_j832 Mar 23, 2013

    Hello,
    There is one person i my family who got same issue now.
    Motherboard is older, he pluged in a flash disk then system went down.
    Now this PC is not bootable, saying the same - CMOS checksum bad, detecking usb mass storage and that this PC will go down in 15 sec.
    There is no possibility to go to BIOS to do any changes.
    I unluged all disks / dvd / floppy (lol yeah still have floppy :D ) but message is still same.
    I take off and put back RAM and still have same issue.
    maybe nextime I will bring some ddr 2 ram to try it on mine ones if his is dead or not ..

    if anybody have some solution I would like to test some yours advices.

    Thanky Odin

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  • Master
  • 1,901 Answers

Hi,

Checksum errors are almost always an indication of RAM problems. Have you replaced the RAM lately? Or perhaps had modules out and not reinstalled properly? Is this a new board?

No mass storage devices looks like there are problems with connections or hardware problems with your hard drive.

Are you setting up a new board or did this just happen out of the blue?

Can you get into the BIOS setup when it begins booting?

Any other information would be helpful.

Wayneard

Posted on Dec 31, 2010

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Bad BIOS checksum.... CMOS bad checksum errors


BOOT BLOCK COMPATIBLE VERSION VER .005
BAD BIOS CHECKSUM

CHECKING FOR CD ROM
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO CD-ROM FOUND
CHECKING FOR FLOPPY DISK
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
READING FILE "P5SD2VM.ROM"
NO FLOPPY DISK FOUND

Does someone already fix this problem??????

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