HP 500B - Manual (Page 84)

The computer will not turn on.
Cause Solution
Drive data or power supply cables might not be properly
connected. Reseat drive data and power supply cables.
The unit temperature might have exceeded safe limits, or the
fan might be blocked. The computer is in an exceedingly hot environment. Let it
cool down and check that the computer air vents are not
blocked, and that the internal fan is running.
Solving Hard Drive Problems
Drive not found (identified).
Cause Solution
Cable could be loose. Check cable connections.
The system may not have automatically recognized a newly
installed device. ● Boot and press F10 to launch the HP Setup Utility.
● Select Device Configuration from the Storage menu,
and determine whether the device is listed.
If the device is not listed, the cable connection might be
loose or the drive might be faulty.
The drive’s SATA controller is disabled in HP Setup. Reconnect the power cable and ensure that all four pins are
connected.
Drive responds slowly after initial power up. Run Computer Setup and increase the POST Delay in
Advanced > Power-On Options.
Nonsystem disk/NTLDR missing message.
Cause Solution
The system is trying to start from the hard drive but the hard
drive may have been damaged. Try to reboot the computer from another bootable device,
such as a diskette or USB disk-on-key. If the operating
system boots from the new device, either the hard drive is
defective or the boot block is corrupted.
System files missing or not properly installed. 1. Insert a bootable media device into the drive and restart
the computer.
2. Verify that the hard drive is partitioned and formatted.
3. Install system files for the appropriate operating system,
if necessary.
Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive
entry in the Storage > Boot Order list.
76 Appendix C Troubleshooting Without Diagnostics