HP Z440

POST error messages
The Power-On Self Text (POST) is a series of diagnostic tests that runs automatically when the computer is
powered on.
Audible and visual messages occur before the operating system starts if the POST encounters a problem.
POST checks the following items to ensure that the computer system is functioning properly:
●
Keyboard
●
DIMMs
●
Diskette drives
●
All mass storage devices
●
Processors
●
Controllers
●
Fans
●
Temperature sensors
●
Cables (front/rear panels, audio, and USB ports)
The table shown next describes the POST error messages.
Screen message Probable cause Recommended action
102—System Board Failure Potential system board problem; contact HP Support.
110—Out of memory space for
option ROMs
Option ROM for a device could not run
because of memory constraints.
Run Computer Setup (F10) Utility to disable unneeded
option ROMs, and to enable ACPI/USB Buers at Top of
Memory.
161—Real-Time Clock Power
Loss
1. Run Computer Setup (F10) utility and set default
settings.
2. Replace the CMOS battery.
3. Replace the system board.
162—Systems Options Error 1. Run Computer Setup (F10) utility and set default
settings.
2. Replace the CMOS battery.
3. Replace the system board.
163—Time and Date Not Set
●
Invalid time or date in
conguration memory.
●
RTC battery might need
replacement.
●
CMOS jumper might not be properly
installed.
1. Set the date and time from the Control Panel or in
Computer Setup (F10) Utility (depending on the
operating system).
2. If the problem persists, replace the RTC battery.
164—Memory Size Error Memory conguration is incorrect. Conrm that the correct memory is installed in the
system.
201—Memory Error RAM failure. 1. Run Computer Setup (F10) utility or the Windows
utilities.
2. Be sure that memory modules are installed correctly.
3. Verify the memory module type.
94 Chapter 4 Diagnostics and troubleshooting