HP Xw4550 HP xw4550 Workstation - Service and Technical Reference Guide - Page 109

Solving diskette problems, Customer self help

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Table 5-3 Power supply problems Problem Cause Solution Power supply shuts down intermittently. Power supply fault. Replace the power supply. After AC power is applied, system powers up for 2-3 seconds and then powers down. This behavior is normal. The system is restoring WOL settings lost during AC power loss. No action required. This behavior occurs whether or not WOL is enabled. Workstation powered off automatically and the Power LED flashes red 2 times, once every second, followed by a 2-second pause. Processor thermal protection 1. Be sure that the workstation air vents are not blocked activated. and the cooling fan is running. A fan might be blocked or not 2. Open the access panel, press the power button, and turning. determine whether the processor fan spins. If the processor fan is not spinning, be sure the fan's cable OR is plugged into the system board header. Be sure the The processor heatsink fan fan is properly seated or installed. assembly is not properly attached to the processor. 3. Replace the processor fan. 4. Reseat processor heatsink and verify that the fan assembly is properly attached. Power LED flashes red 4 times, once every 2 seconds. Power failure (power supply is overloaded). 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. Solving diskette problems Table 5-4 Diskette problems Problem Diskette drive light stays on. Drive not found. Diskette drive cannot write to a diskette. Cause Solution Diskette is damaged. 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. Diskette is incorrectly inserted. Remove and reinsert diskette. Files on diskette are damaged. Verify the program diskettes. Drive cable is not properly connected. Reconnect power cable. Verify that all four pins are connected. Cable is loose. Reseat diskette drive data and power cables. Removable drive is not seated Reseat the drive. properly. Diskette is not formatted. Format the diskette. Diskette is write-protected. Use another diskette or remove the write protection. ENWW Customer self help 101

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Table 5-3
Power supply problems
Problem
Cause
Solution
Power supply shuts down
intermittently.
Power supply fault.
Replace the power supply.
After AC power is applied, system
powers up for 2-3 seconds and then
powers down.
This behavior is normal. The
system is restoring WOL
settings lost during AC power
loss.
No action required. This behavior occurs whether or not
WOL is enabled.
Workstation powered off
automatically and the Power LED
flashes red 2 times, once every
second, followed by a 2-second
pause.
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.
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.
Power LED flashes red 4 times,
once every 2 seconds.
Power failure (power supply is
overloaded).
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.
Solving diskette problems
Table 5-4
Diskette problems
Problem
Cause
Solution
Diskette drive light stays on.
Diskette is damaged.
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.
Diskette is incorrectly inserted.
Remove and reinsert diskette.
Files on diskette are damaged.
Verify the program diskettes.
Drive cable is not properly
connected.
Reconnect power cable. Verify that all four pins are
connected.
Drive not found.
Cable is loose.
Reseat diskette drive data and power cables.
Removable drive is not seated
properly.
Reseat the drive.
Diskette drive cannot write to a
diskette.
Diskette is not formatted.
Format the diskette.
Diskette is write-protected.
Use another diskette or remove the write protection.
ENWW
Customer self help
101