Table 7-46 Issues, possible causes, and xes (continued)
Items Procedures
Troubleshooting steps
1. Verify whether Secure Boot is enabled in BIOS. Secure Boot prevents legacy boot devices
from starting the computer, including bootable CDs and DVDs. For more information, see
http://support.hp.com/us-en/document/c03653226.
2. Reset BIOS to default. Be sure that BIOS Boot Mode in Boot Option is set up properly for
bootable device and its operating system (for example, UEFI Native for Windows 8).
Another example, choosing Legacy Boot Order for an UEFI device causes "Boot Device not
found (3F0)" error.
3. Verify hard drive connection and ex cable. Reseat connection. For multiple storage
devices, keep the primary drive with the operating system and remove other devices.
4. Use PC Hardware Diagnostics tool to test. Record failure code and have the hard drive
replaced.
5. If there is no error, reinstall the operating system using HP Restore.
6. Test with a veried working operating system hard drive, if available.
Note If there is a hard drive POST error message, see POST error messages and user actions
on page 171.
Read-write error
Use this information to troubleshoot read and write errors.
Table
7-47 Issues, possible causes, and xes
Items Procedures
Symptoms
● POST error message (for example,
error code 301)
● Hang when working on data, les,
documents
Possible causes
Loose connection, faulty hardware.
Troubleshooting steps
1. Perform a hard reset (8. Hard reset on page 115).
2. Reset BIOS to default (9. Soft reset (Default Settings) on page 116).
3. Verify the drive connection and ex cable. Reseat connection (10. Reseat cables and
connections on page 116).
4. Use the HP Hardware Diagnostics tool to test. If failed, record failure code and have the
hard drive replaced.
5. If no error with HP PC Hardware Diagnostics (UEFI) tool, try to repair the hard drive and its
les in Windows (using command “CHKDSK /f /r /x”). Use HP Restore to reinstall
the operating system, if needed.
6. Test with a veried working hard drive. If it is not recognized, the system board is faulty.
Note If there is a hard drive POST error message, see POST error messages and user actions
on page 171.
ENWW Common issues and possible solutions 161
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