HP ProLiant Gen8 Troubleshooting Guide Volume I: Troubleshooting

Hardware problems 48

Clearing NVRAM can resolve various problems.

6. Verify that the PCIe device or graphics controller does not need additional power to operate. For more

information, see the device documentation.

Internal system problems

CD-ROM and DVD drive problems

System does not boot from the drive

Action:

1. Be sure the drive boot order in RBSU or the UEFI System Utilities is set so that the server boots from the

CD-ROM drive first.

2. Be sure no loose connections (on page 17) exist.

3. Be sure the media from which you are attempting to boot is not damaged and is a bootable CD.

4. If attempting to boot from a USB CD-ROM drive:

o See the operating system and server documentation to be sure both support booting from a USB

CD-ROM drive.

o Be sure legacy support for a USB CD-ROM drive is enabled in RBSU or the UEFI System Utilities.

Data read from the drive is inconsistent, or drive cannot read data

Action:

1. Clean the drive and media.

2. If a paper or plastic label has been applied to the surface of the CD or DVD in use, remove the label and

any adhesive residue.

3. Be sure the inserted CD or DVD format is valid for the drive. For example, be sure you are not inserting

a DVD into a drive that only supports CDs.

Drive is not detected

Action:

1. Be sure no loose connections (on page 17) exist.

2. Refer to the drive documentation to be sure cables are connected as required.

3. Be sure the cables are working properly. Replace with known functional cables to test whether the

original cables were faulty.

4. Be sure the correct, current driver is installed.

Drive problems (hard drives and solid state drives)

Drives are failed

Action:

1. Be sure no loose connections (on page 17) exist.