Why can't my computer boot with a hard drive over 33.8 GB?

Updated: 06/30/2020 by Computer Hope
Computer hard drive

If your computer system cannot boot with a hard drive greater than 33.8 GB, follow these steps.

Configure computer to boot with HDD over 33.8 GB

Verify the HDD (hard disk drive) is fully recognized in your CMOS setup.

If the hard drive is not fully detected by CMOS, it is likely you are encountering a BIOS limitation. This issue can be resolved one of two ways.

  1. Obtain a BIOS update from the computer or motherboard manufacturer. It is only recommended you upgrade your BIOS if the update explicitly states it resolves this limitation.
  1. Utilize the DDO (disk drive overlay) diskette included with the hard drive or obtainable through the hard drive manufacturer.