Table of Contents
Advertisement
Isolating Problems
Table 3-1. Isolating Problems Within the HP E840xA Mainframe.
Symptom
Flashing Voltages Indicator
Flashing Temperature Indicator
Flashing Fans Indicator
Monitor indicators are off and
fans do not operate when On
button is pressed.
No monitor indicators when
mainframe is turned on.
The SYSFAIL indicator will come on and remain on when a VXI module installed in the mainframe fails.
Replacing Assemblies
44 Servicing Your Mainframe
One or more backplane voltages may be out of specification. Check
diagnostic connector pins 1, 2, 3, 4, 14,15,16. Check for a loose cable
between the basic monitor assembly and the backplane. Replace power
supply if any voltage remains out of specification.
Power supply temperature is high. Mainframe is nearing automatic shutdown.
Check for proper air flow and clearance around the power supply fan(s).
Power supply fan or mainframe impeller has failed. Visually inspect to
determine which fan is not rotating. Turn off mainframe to avoid possible
overheating. Power supply fans are not individually replaceable; replace the
power supply.
Check for a loose cable between the basic monitor assembly and the
backplane. Replace the basic monitor board.
Check diagnostic connector pins 1, 2, 3, 4, 13, 14, 15, 16 to determine if
backplane voltages are within specification and power supply and backplane
impeller are functioning. Replace the basic monitor PC board.
This section contains instructions for replacing the basic monitor, power
supply, power supply fan, and impeller.These assemblies are available from
Hewlett-Packard under the part numbers shown in Table 3-2. Contact the HP
TMO Business Center at 1-800-829-4444 to obtain replacement assemblies.
Table 3-2. HP E8400A Replacement Assemblies
Assembly
Basic Monitor
Power Supply
Impeller (backplane fan)
Action
HP E8401A
Part Number
E8400-66502
E8401-69204
500 W Power Supply
Exchange Assembly
E8400-68501
HP E8403A
Part Number
E8400-66502
E8403-69204
1000W Power Supply
Exchange Assembly
E8400-68501
Chapter 3
Advertisement
Table of Contents
