Solving Processor Problems - HP Xw9400 - Workstation - 16 GB RAM Reference Manual

Table 6-14 Memory problems (continued)
Problem
Power LED flashes red 5
times, once every second,
followed by a 2-second
pause, and the workstation
beeps 5 times.
A total of 4 GB of RAM is
installed, yet the 32–bit OS
only recognizes ? 3 GB.

Solving processor problems

Table 6-15 Processor problems
Problem
Poor performance is
experienced.
Power LED is red and
stays on.
156 Chapter 6 System diagnostics and troubleshooting
Cause
Memory is installed
incorrectly or is bad.
A 32–bit OS is limited by
4 GB of address space,
and some of the space is
used by I/O devices.
Cause
Processor is hot.
Processor is not seated
properly or not installed.
Solution
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Ensure DIMMs are loaded in the correct
slots.
2. Reseat DIMMs.
3. Replace DIMMs one at a time to isolate the
faulty module.
4. Replace third-party memory with HP
memory.
5. Replace the system board.
Use a video card that uses less on-board
memory.
Solution
1. Be sure the airflow to the workstation is not
blocked.
2. Be sure the fans are connected and
working properly (some fans only operate
when needed).
3. Be sure the CPU heatsink is installed
properly.
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Check to see that the processor is present.
2. Reseat the processor.
ENWW