Floppy disk fail 40: fix, CMOS checksum error, BIOS

Floppy disk fail 40: fix, CMOS checksum error, BIOS

If you are seeing the error message at startup: Floppy Disk Fail (40) this means that there is a problem with your floppy drive. To solve this problem try the following steps.

  • Check in the device manager that there is no yellow exclamation point near the floppy drive, if so reinstall the driver.
  • Go into the BIOS and check if your floppy drive is set as primary boot device, if so change it (set the Hard Disk as primary boot device).
  • Go into the BIOS and set your floppy drive A as Disabled or Not Installed, save with the F10 key and restart your PC.
  • Make sure the floppy drive is connected.
  • If this persists disconnect the floppy drive from the PC (permanently).
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