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 Worldwide — Version 21 — August 16, 2007
Page 30
To Next Page
Loading...
Need help?
General
