HP t420 Troubleshooting Guide - Page 32

POST Numeric Codes and Text Messages

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Table B-1 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 3. Verify that the AC cord is plugged into the power supply. 4. Close the unit and reattach the power cord. 5. Try to power on the computer. 6. Replace the unit. POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table B-2 Numeric Codes and Text Messages Control panel message Description Recommended action 103-System Board Failure DMA or timers. 1. Clear CMOS. 2. Remove expansion boards. 3. Replace the system board. 110-Out of Memory Space for Option ROMs Recently added PCI expansion card contains an 1. If a PCI expansion card was recently option ROM too large to download during POST. added, remove it to see if the problem remains. 2. In Computer Setup, set Advanced > Device Options > NIC PXE Option ROM Download to DISABLE to prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card's option ROM. Internal PXE option ROM is used for booting from the NIC to a PXE server. 161-Real-Time Clock Power Loss Invalid time or date in configuration memory. RTC (real-time clock) battery may need to be replaced. Reset the date and time under Control Panel (Computer Setup can also be used). If the problem persists, replace the RTC battery. See the Removal and Replacement section for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement. 164-MemorySize Error Memory amount has changed since the last boot (memory added or removed). Press the F1 key to save the memory changes. 201-Memory Error RAM failure. 1. Ensure memory modules are correctly installed. 2. Verify proper memory module type. 3. Remove and replace the identified faulty memory module(s). 26 Appendix B Diagnostics and Troubleshooting

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Table B-1
Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Beeps
Possible Cause
Recommended Action
3.
Verify that the AC cord is plugged into the
power supply.
4.
Close the unit and reattach the power cord.
5.
Try to power on the computer.
6.
Replace the unit.
POST Numeric Codes and Text Messages
This section covers those POST errors that have numeric codes associated with them. The section also
includes some text messages that may be encountered during POST.
NOTE:
The computer will beep once after a POST text message is displayed on the screen.
Table B-2
Numeric Codes and Text Messages
Control panel message
Description
Recommended action
103-System Board Failure
DMA or timers.
1.
Clear CMOS.
2.
Remove expansion boards.
3.
Replace the system board.
110-Out of Memory Space for Option ROMs
Recently added PCI expansion card contains an
option ROM too large to download during POST.
1.
If a PCI expansion card was recently
added, remove it to see if the problem
remains.
2.
In Computer Setup, set
Advanced
>
Device Options
>
NIC PXE Option ROM
Download
to
DISABLE
to prevent PXE
option ROM for the internal NIC from being
downloaded during POST to free more
memory for an expansion card's option
ROM. Internal PXE option ROM is used for
booting from the NIC to a PXE server.
161-Real-Time Clock Power Loss
Invalid time or date in
configuration
memory.
RTC (real-time clock) battery may need to
be replaced.
Reset the date and time under
Control Panel
(Computer Setup can also be used). If the
problem persists, replace the RTC battery. See
the Removal and Replacement section for
instructions on installing a new battery, or
contact an authorized dealer or reseller for RTC
battery replacement.
164-MemorySize Error
Memory amount has changed since the last
boot (memory added or removed).
Press the
F1
key to save the memory changes.
201-Memory Error
RAM failure.
1.
Ensure memory modules are correctly
installed.
2.
Verify proper memory module type.
3.
Remove and replace the
identified
faulty
memory module(s).
26
Appendix B
Diagnostics and Troubleshooting