HP XW6400X - Manual (Page 32)

Drive Self Tests (DPS) Drive Protection System
A diagnostic hard drive self test. It scans critical physical components and every sector of the hard
drive for physical faults and then reports any faults to the user.
Running independently of the operating system, it can be accessed through the computer's setup
procedure. It produces an evaluation on whether the hard drive is the source of the problem and
needs to be replaced.
The system expands on the Self-Monitoring, Analysis, and Reporting Technology (SMART), a continuously
running systems diagnostic that alerts the user to certain types of failures.
DPS Access through F10 Setup during Boot (F10 diagnostic access not available with SCSI drives)
SMART Technology
(Self-monitoring, analysis
and reporting technology –
Windows XP only) Allows hard drives to monitor their own health and to raise flags if imminent failures were predicted
Predicts failures before they occur. Tracks fault prediction and failure indication parameters such as re-
allocated sector count, spin retry count, calibration retry count.
By avoiding actual hard drive failures, SMART hard drives act as "insurance" against unplanned user
downtime and potential data loss from hard drive failure.
SMART I – Drive Failure Prediction
SMART II – Off-Line Data Collection
SMART III – Off-Line Read Scanning with Defect Reallocation
Serviceability Features of System
Access panel
Tool-less, one-handed
Optical drives Tool-less
Floppy drive Tool-less
Hard drives Tool-less
Expansion cards Tool-less
Chassis fan removal Tool-less
Green user touch points Yes, on tool-free internal chassis mechanisms
Color-coordinated cables
and connectors Yes
Memory Tool-less
CPUs Requires T15 Torx driver, can be upgraded without removing any internal components except processor
heat sink.
Power supply diagnostic
LED Yes, dual function: AC OK & power OK
Power Button Yes, ACPI multi-function
Power LED Yes, dual color LED indicates normal operation and faults.
Hard drive activity LED Yes
Internal speaker Yes, used for pre-boot diagnostic beep codes
Dual Color Power and HD
LED on Front of Computer
(Indicates Normal
Operations and Fault
Conditions) green – normal
red – fault
System/Emergency ROM
Flash Recovery
with Video Recovers corrupted system BIOS.
Configuration Record SW Yes
QuickSpecs
HP xw6400 Workstation
Technical Specifications
DA - 12505 Canada — Version 27 — January 7, 2008 Page 32