Drive Protection System; Ecc Fault Prediction And Prefailure Warranty; Thermal Sensor - HP xw4400 Service And Technical Reference Manual

Drive Protection System

The Drive Protection System(DPS) is a diagnostic tool built into the hard drives that is installed in select
HP workstations. the DPS is designed to help diagnose problems that might result in unwarranted hard
drive replacement.
When HP workstations are built, each installed hard drive is tested using the DPS, and a permanent
record of key information is written onto the drive. Each timethe DPS is run, test results are written to
the hard drive. The service provider can use this information to help diagnose conditions that caused
you to run the DPS software.

ECC fault prediction and prefailure warranty

When the workstation encounters an excessive number of error checking and correcting (ECC) memory
errors, the workstation displays a Local Alert message. This message contains detailed information
about the errant memory module, enabling you to take action before you experience non-correctable
memory errors. The Prefailure Warranty for ECC memory modules enables you to replace these
modules, free of charge, before the modules actually fail. ECC memory modules are optional on selected
HP systems.

Thermal sensor

There are multiple sensors on your workstation:
●
One per processor
●
One per memory module (DIMM)
●
One for the system board
●
Some hard drives
The processor thermal sensor is a hardware and software feature that tracks the internal temperature
of the workstation. When combined with HP Client Manager Software, this features notifies the network
administrator when the normal range is exceeded.
The thermal sensor monitors the processor temperature. If the temperature gets too hot, the processor
clock automatically begins to throttle. If the temperature does not go down, then the system eventually
shuts down.
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