Solving Diskette Problems - HP xw4550 Service And Technical Reference Manual

Table 5-3 Power supply problems (continued)
Problem
Workstation powered off
automatically and the Power LED
flashes red 2 times, once every
second, followed by a 2-second
pause.
Power LED flashes red 4 times,
once every 2 seconds.

Solving diskette problems

Table 5-4 Diskette problems
Problem
Diskette drive light stays on.
Drive not found.
Diskette drive cannot write to a
diskette.
106 Chapter 5 System diagnostics and troubleshooting
Cause
Processor thermal protection
activated.
A fan might be blocked or not
turning.
OR
The processor heatsink fan
assembly is not properly
attached to the processor.
Power failure (power supply is
overloaded).
Cause
Diskette is damaged.
Diskette is incorrectly inserted.
Files on diskette are damaged.
Drive cable is not properly
connected.
Cable is loose.
Removable drive is not seated
properly.
Diskette is not formatted.
Diskette is write-protected.
Writing to the wrong drive.
Not enough space is left on the
diskette.
Diskette write control is
enabled.
Diskette is damaged.
Solution
1. Be sure that the workstation air vents are not blocked
and the cooling fan is running.
2. Open the access panel, press the power button, and
determine whether the processor fan spins. If the
processor fan is not spinning, be sure the fan's cable
is plugged into the system board header. Be sure the
fan is properly seated or installed.
3. Replace the processor fan.
4. Reseat processor heatsink and verify that the fan
assembly is properly attached.
Determine if a device is causing the problem: Power off the
workstation, remove all attached devices, and power on
the workstation. If the workstation enters the POST, power
off the workstation, reinstall one of the removed devices,
and power on the workstation again. If the workstation
continues to enter the POST, power off the workstation,
reinstall the next device that was removed, and power on
the workstation. Repeat this procedure until failure occurs
with the most recently reinstalled device. Replace the
device causing the failure. Continue adding devices one at
a time to ensure all devices are functioning properly.
Solution
In Microsoft Windows Vista or XP, right-click Start,
click Explore, and select a drive. Select
File>Properties>Tools. Under Error-checking, click
Check Now.
Remove and reinsert diskette.
Verify the program diskettes.
Reconnect power cable. Verify that all four pins are
connected.
Reseat diskette drive data and power cables.
Reseat the drive.
Format the diskette.
Use another diskette or remove the write protection.
Verify the drive letter in the path statement.
Use another diskette.
Use the Computer Setup (F10) Utility to verify the storage
security feature disabled settings.
Replace the damaged disk.
ENWW