HP 285 Maintenance and Service Guide - Page 90

Solving memory problems

Page 90 highlights

Cannot connect to network server when attempting Remote System Installation. Cause Solution The network controller is not configured properly. Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC. System setup utility reports unprogrammed EEPROM. Cause Unprogrammed EEPROM. Solution Contact an authorized service provider. Solving memory problems If you encounter memory problems, some common causes and solutions are listed in the following table. CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a memory module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system. NOTE: The memory count will be affected by configurations with the Management Engine (ME) enabled. The ME uses 8MB of system memory in single channel mode or 16MB of memory in dual-channel mode to download, decompress, and execute the ME firmware for Out-of-Band (OOB), third-party data storage, and other management functions. System will not boot or does not function properly after installing additional memory modules. Cause Solution A memory module is not installed in the DIMM1 or XMM1 socket. Ensure that a memory module is installed in the DIMM1 or XMM1 socket on the system board. This socket must be populated with a memory module. Memory module is not the correct type or speed grade for the system or the new memory module is not seated properly. Replace module with the correct industry-standard device for the computer. On some models, ECC and non-ECC memory modules cannot be mixed. Out of memory error. Cause You have run out of memory to run the application. Solution Check the application documentation to determine the memory requirements. 82 Chapter 6 Troubleshooting without diagnostics

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Cannot connect to network server when attempting Remote System Installation.
Cause
Solution
The network controller is not
configured
properly.
Verify Network Connectivity, that a DHCP Server is present, and
that the Remote System Installation Server contains the NIC
drivers for your NIC.
System setup utility reports unprogrammed EEPROM.
Cause
Solution
Unprogrammed EEPROM.
Contact an authorized service provider.
Solving memory problems
If you encounter memory problems, some common causes and solutions are listed in the following table.
CAUTION:
Power may still be supplied to the DIMMs when the computer is turned
off
(depending on the
Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the
computer power cord before attempting to reseat, install, or remove a memory module.
For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory.
Otherwise, the computer will not boot the operating system.
NOTE:
The memory count will be
affected
by
configurations
with the Management Engine (ME) enabled. The
ME uses 8MB of system memory in single channel mode or 16MB of memory in dual-channel mode to
download, decompress, and execute the ME
firmware
for Out-of-Band (OOB), third-party data storage, and
other management functions.
System will not boot or does not function properly after installing additional memory modules.
Cause
Solution
A memory module is not installed in the DIMM1 or XMM1 socket.
Ensure that a memory module is installed in the DIMM1 or XMM1
socket on the system board. This socket must be populated with a
memory module.
Memory module is not the correct type or speed grade for the
system or the new memory module is not seated properly.
Replace module with the correct industry-standard device for the
computer. On some models, ECC and non-ECC memory modules
cannot be mixed.
Out of memory error.
Cause
Solution
You have run out of memory to run the application.
Check the application documentation to determine the memory
requirements.
82
Chapter 6
Troubleshooting without diagnostics