EasyManuals Logo

HP Compaq d330 DT User Manual

HP Compaq d330 DT
197 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #85 background imageLoading...
Page #85 background image
Technical Reference Guide
hp compaq d330 and d530 Series of Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition - June 2003
4-31
The systems covered in this guide utilize the following specialized functions built into the LPC
47B387 I/O Controller:
Power/Hard drive LED control – The I/O controller provides color and blink control for the
front panel LEDs used for indicating system events (refer to Table 4-14).
Intruder sensing – Supported on SFF, DT, MT, and CMT form factors, battery-backed D-
latch logic internal to the LPC47B387 is connected to the hood sensor switch to record hood
(cover) removal.
Hood lock/unlock – Supported on SFF, DT, MT, and CMT form factors, logic internal to the
LPC47B387 controls the lock bar mechanism.
I/O security – The parallel, serial, and diskette interfaces may be disabled individually by
software and the LPC47B387’s disabling register locked. If the disabling register is locked, a
system reset through a cold boot is required to gain access to the disabling (Device Disable)
register.
Processor present/speed detection – One of the battery-back general-purpose inputs (GPI26)
of the LPC47B387 detects if the processor has been removed. The occurrence of this event is
passed to the ICH5 that will, during the next boot sequence, initiate the speed selection
routine for the processor.
Legacy/ACPI power button mode control – The LPC47B387 receives the pulse signal from
the system’s power button and produces the PS On signal according to the mode (legacy or
ACPI) selected. Refer to chapter 7 for more information regarding power management.

Table of Contents

Other manuals for HP Compaq d330 DT

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the HP Compaq d330 DT and is the answer not in the manual?

HP Compaq d330 DT Specifications

General IconGeneral
BrandHP
ModelCompaq d330 DT
CategoryDesktop
LanguageEnglish

Related product manuals