HP Vectra XM5 4 Manual

Familiarization Guide
HP Vectra XM 5/xx
series 4 PC
This guide is for experienced HP Support Center personnel CEs and reseller technicians.
That is, personnel who have already completed the HP Vectra PC family training course, or
equivalent, and have at least six months of experience servicing the HP Vectra PCs.
It is a self-paced training guide designed to train you to install, configure, and repair the PC.
You can follow it without having any equipment available.

Table of Contents
1 PRODUCT OVERVIEW AND FEATURES 4
PRODUCT OVERVIEW 4
NETWORK BOARD AND OTHER NEW FEATURES 5
MODELS AVAILABLE AT PRODUCT LAUNCH 5
VECTRA PRODUCTS COMPARISON 6
PRODUCT FEATURES 7
PROCESSOR-LOCAL BUS DEVICES 7
PCI BUS DEVICES 8
ISA BUS DEVICES 9
SOFTWARE 10
DOCUMENTATION 11
CHECKPOINT: PRODUCT OVERVIEW AND FEATURES 12
2 PC HARDWARE STRUCTURE 13
PACKAGING 13
REPLACING THE SYSTEM BOARD 14
THE BACKPLANE 15
INSTALLING OR REPLACING ACCESSORIES 16
REPLACING THE PROCESSOR 16
INSTALLING OR REPLACING MAIN MEMORY MODULES 16
UPGRADING TO 2 MB OF VIDEO MEMORY 17
INSTALLING OR REPLACING MASS-STORAGE DRIVES 17
INSTALLING THE D3979A COAX ADAPTER 17
CHECKPOINT: PC HARDWARE STRUCTURE 18
3 TROUBLESHOOTING AND REPAIR 20
SYSTEM ROM AND SECURITY SUPPORT 20
HP BIOS 20
CHECKPOINT: TROUBLESHOOTING AND REPAIR 27
A CHECKPOINT ANSWERS 28
CHECKPOINT ANSWERS 28
B FINAL TEST 31
FINAL TEST 31
D ANSWERS TO THE FINAL TEST 33
ANSWERS TO THE FINAL TEST 33

NOTICE
Information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not
limited to, the implied warranties of merchantability and fitness for a particular purpose.
Hewlett-Packard shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.
Hewlett-Packard shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.
Hewlett-Packard assumes no responsibility for the use or reliability of its software on
equipment that is not furnished by Hewlett-Packard.
This document contains proprietary information which is protected by copyright. All rights are
reserved. No part of this document may be photocopied, reproduced, or translated into
another language without the prior written consent of Hewlett-Packard Company.
Centronics® is a U.S. registered trademark of Centronics Data Computer Corporation.
Microsoft®, Windows® and MS-DOS® are registered trademarks of Microsoft Corporation.
NextStep™ is a trademark of Next Incorported.
Novell® and Netware® are registered trademarks of Novell Inc.
O/S2™ is a trademark of International Business Machines Corporation.
PENTIUM™ is a trademark of Intel Cor[oration.
SCO UNIX® is a registered trademark of the Santa Cruz Operation.
Solaris™ is a trademark of Sun Microsystems Incorporated.
SoundBlaster™ is a trademark of Creative Technology Limited.
©1996 Hewlett-Packard Company

1 PRODUCT OVERVIEW AND FEATURES
This chapter gives an overview of the HP Vectra XM 5/xx series 4 PC . It compares it to the
HP Vectra VL 5/xx series 4 desktop PC , and highlights the new features: the Ethernet 10
BaseT network board on all models; the completely new BIOS, setup and POST; and the new
design of the status (control) panel.
PRODUCT OVERVIEW
The following diagrams show the front and rear views of the HP Vectra XM 5/xx series 4 PC .
Power supply
Speaker position
New status (control)
panel
Flexible disk drive in
top 3.5-inch shelf
5.25-inch shelf
(for CD-ROM drive)
Vacant 3.5/5.25-inch shelf
Double-sided backplane
with 5 accessory slots
(4 standard)
Hard disk drive
Enhanced Ethernet
10 Base T LAN board
BNC coax hole
metal plug
New I/O panel
IIdentification label
RJ-45 network
connector
Cover lock
BNC coax hole
metal plug
New I/O panel
4 accessory slot
panel blanks
Power connector
Mouse Keyboard Parallel port Serial Port A Serial Port B Display

NETWORK BOARD AND OTHER NEW FEATURES
The HP Vectra XM 5/xx series 4 PC is based on the HP Vectra VL 5/xx series 4 desktop PC .
The major new features are:
• Enhanced Ethernet 10 BaseT network board, supporting remote power-on, fitted as
standard in a PCI slot on all models.
• Redesigned BIOS,
Setup and POST routines, with a new Error Message Utility.
• A new design of status (control) panel, with network activity light.
MODELS AVAILABLE AT PRODUCT LAUNCH
Platform* Product Number Hard Drive C: Std. RAM Cache Multi- Media Operating System
XM4 5/75 D3961A None 8 MB No No none
D3962A 840 MB
(D2908-60xxx) Windows for Workgroups 3.11
D3963A 1.2 GB
(D2930A)
XM4 5/100 D3964A None 8 MB No No none
D3965A 840 MB
(D2908-60xxx) Windows for Workgroups 3.11
D3966A 1.2 GB
(D2930A)
XM4 5/120 D3967A None 8 MB Yes No none
D3968A 840 MB
(D2908-60xxx) 16 MB Yes No Windows 95 or Windows for
Workgroups 3.11
D3975A 1.2 GB
(D2930A) Yes No
D3975S Yes No OS/2 3.0
XM4 5/133 D3970A None 8 MB Yes No none
D3977A 1.2 GB
(D2930A) 16 MB Yes No Windows 95 or Windows for
Workgroups 3.11
XM4 5/150 D3972A None 8 MB Yes No none
D3978A 1.2 GB
(D2930A) 16 MB Yes No Windows 95 or Windows for
Workgroups 3.11
XM4 5/166 D4220A None 8 MB Yes No none
D4221A 1.2 GB
(D2930A) 16 MB Yes No Windows 95 or Windows for
Workgroups 3.11
*All models have an Enhanced IDE disk controller and an S3 Trio 64 Ultra VGA integrated on the
PCI bus, an Enhanced Ethernet 10BaseT Network board installed on the PCI bus, and a 1.44 MB
flexible disk drive connected to a controller that is integrated on the ISA bus.

VECTRA PRODUCTS COMPARISON
The following table compares the new HP Vectra XM 5/xx series 4 PC (in the white, central
column) with the
HP Vectra VL 5/xx series 4 desktop PC and the HP Vectra XM 5/xx series 3
PC
(in the two shaded columns).
Component HP Vectra VL 5/xx series 4
Desktop PC HP Vectra XM 5/xx series 4 PC
Microprocessor 5/90: Pentium 90 MHz
5/100: Pentium 100 MHz
5/120: Pentium 120 MHz
5/133: Pentium 133 MHz
5/150: Pentium 150 MHz (due)
5/166: Pentium 166 MHz (due)
5/75: Pentium 75 MHz
5/100: Pentium 100 MHz
5/120: Pentium 120 MHz
5/133: Pentium 133 MHz
5/150: Pentium 150 MHz
5/166: Pentium 166 MHz
Main memory 32-bit EDO (60 ns) modules
Standard 8 MB (a pair of 4 MB modules) or 16 MB (a pair of 8 MB modules)
Maximum 128 MB (chipset limitation)
Upgrades Must be installed in pairs
Sockets Six (3 banks, one pair in each)
Error protection Not supported
Level 1 cache memory 8 KB for instruction-code, 8 KB for data (both caches on the
microprocessor)
Level 2 cache memory 256 KB synchronous pipeline
burst cache memory (socketed
on system board)
256 KB synchronous pipeline
burst cache memory (D3659A)
(socketed on system board)
Video controller Integrated 64-bit Ultra VGA on
PCI bus (S3 Trio 76564V+) or
Matrox MGA Millennium video
card on PCI bus
Integrated 64-bit Ultra VGA on
PCI bus (S3 Trio 64 PnP)
Video memory 1 MB (expandable to 2 MB) for
S3Trio 76564V+, or
2 MB (expandable to 8 MB) for
Matrox models.
1 MB (expandable to 2 MB) for
S3Trio 64 PnP.
Video upgrade socket Two 512K chips (use D3500A)
for S3Trio 76564V+, or
2 MB upgrade card (use
D3557A) for Matrox models.
Two 512K chips (use D3500A)
for S3Trio 64 PnP.
Disk controller Master Fast IDE controller on PCI local bus (integrated in system
board chip-set)
Hard disks Fast IDE 540 MB, 12 ms
Fast IDE 640 MB, 12 ms
Fast IDE 1 GB, 12 ms
Fast IDE 1.2 GB, 11 ms
Fast IDE 840 MB, 10 ms
Fast IDE 1.2 GB, 11 ms
Mass storage shelves One front access 3.5-inch shelf, one front access 5.25-inch shelf, one
front access 5.25-inch/3.5-inch (1-inch high) shelf, and one internal
3.5-inch shelf
Network interface None Enhanced Ethernet 10 Base T
PCI Network board (5063-8790)
Audio capability On specific multimedia models only
Integrated ports 1 parallel port (bi-directional, ECP/EPP capable), 2 serial ports (UART
16650), Keyboard connector, Mouse connector

Standard accessory
slots One 32-bit PCI; one 32-bit PCI / full-length 16-bit ISA Combinationone
full-length 16-bit ISA; one third-length 16-bit ISA
Power supply 100 W (full range 90-264 VAC)
Security Power-on password, mechanical cover lock, disk and port disabling
Passwords User Password (8 characters)
and Administrator Password
(standard delay between failures)
User Password (32 characters)
and Administrator Password
(increasing delay between
failures)
Pre-loaded software Windows for Workgroups 3.11 (with MS-DOS 6.22), with an option for
Windows 95 on some models, or OS/2 3.0 on others; Dashboard, HP
User Tools, Drivers
BIOS ROM HP/Phoenix BIOS, Flash
EEPROM Phoenix BIOS, Flash EEPROM
Setup localization English only
EMU localization English only Localized
PRODUCT FEATURES
PROCESSOR-LOCAL BUS DEVICES
Intel Pentium Microprocessor
The HP Vectra XM 5/xx series 4 PC is the first series to be introduced with the 166 MHz and
150 MHz Pentium processors.Models are also introduced with processor frequencies down to
75 MHz.
The choice of which voltage regulator module (VRM) to install depends on which Pentium
processor is fitted. This is summarized under “Replacing the Processor” in Chapter 2, and
“Field Replaceable Parts” in Chapter 3.
Cache Memory
The 120 MHz and faster models of the HP Vectra XM 5/xx series 4 PC have 256 KB of level-
two (L2) cache memory fitted as standard. The 100 MHz model and slower models work
without L2 cache, but have sockets to allow 256 KB to be installed as an accessory (order
D3659A synchronous, or D4049A asynchronous cache memory modules).
Main Memory
The main memory of the HP Vectra XM 5/xx series 4 PC resembles that of the HP Vectra VL
5/xx series 4 PC
, in the following respects:
• 6 double interline memory module (DIMM) sockets on the system board, organized as 3
banks: A, B and C.
• 60ns, 32-bit wide, extended data out (EDO) DRAM memory modules used. Classical fast
page mode (FPM) modules can be installed in pairs, but performance is decreased for all
memory accesses.
• 8 MB (using a pair of 4 MB modules) or 16 MB (using a pair of 8 MB modules) of memory
is supplied as standard, expandable to 128 MB.
• Memory modules must be installed in pairs of identical modules.

• Only 4 MB or 16 MB modules can be installed in bank C. Bank C supports only single
density memory modules.
Part Number Part Type Description Installable
in Bank C
D3646B 8 MB kit 32-bit EDO, 60 ns 2 5 4 MB yes
D3647B 16 MB kit 32-bit EDO, 60 ns 2 5 8 MB no
D3648B 32 MB kit 32-bit EDO, 60 ns 2 5 16 MB yes
PCI BUS DEVICES
Video Controller
A 64-bit PCI video controller is integrated on the system board on all models. This has 1 MB of
video memory fitted as standard, up-gradable to 2 MB. The following table summarizes the
video resolutions that can be supported, provided that suitable drivers are available for the
chosen operating system.
Number of
Colors 16 256 32 K 64 K Hi-Color
16.7 M
True-Color
Maximum
Refresh Rates
Bits per Pixel 4 8 15 16
32
640 x 480 1 MB
2 MB
75 Hz
(60 Hz in VGA)
800 x 600 1 MB 1 MB (2 MB
for OS/2)
2 MB
75 Hz
1024 x 768 1 MB 2 MB 75 Hz
1280 x 1024 1 MB 2 MB Not supported 75 Hz
*Your display might not support the maximum refresh rates that are shown here. Refer to the
User’s Guide supplied with the display for details of the refresh rates which it supports.
LAN Controller Board
Enhanced Ethernet 10 BaseT network board (5063-8790) is installed in a new PCI
accessory slot, on the right-hand side of the double-sided backplane. The board
occupies the space underneath the internal, hard disk drive rear shelf. It supports the
IEEE 802.3 standard (10-BaseT, giving a data transfer rate of 10 Mbits per second).
The new set of drivers not only supports
remote wake-up (from standby or sleep
mode), but also remote power-on (from the power-off state) activated from a remote
network console.
The board has an RJ-45 UTP network connector. This emerges through a new I/O panel
at the back of the computer, just below the cover lock assembly. The I/O panel has a
hole in it, ready to accept a BNC coax adapter accessory. This hole is normally covered
by a metal plug when the adapter is not fitted.
IDE Disk Controller
All models have an Master Fast IDE controller which supports up to four IDE devices, for hard
disk and CD-ROM drives, but only three connectors are provided.

Supported Drives
The computer has one internal shelf (for a hard disk drive) and three front-access drive
shelves (for front-access disk drives and hard disk drives).
Shelf Drive Description Part Number
Top Flexible disk drive 3.5-inch 1.44 MB D2035B
Middle CD-ROM drive
Tape drive (QIC-3020) Quadruple speed IDE
5.25-inch 1.36 GB
D2896B
C4330CA
Bottom Tape drive 3.5-inch 800 MB C4320B
Rear internal or
Bottom Hard disk drive 3.5-inch 540 MB IDE 3.5-inch 840 MB IDE
3.5-inch 1 GB IDE
3.5-inch 1.2 GB IDE
D2918A
D2925A
D2919A
D2930A*
*When available as a stand-alone accessory.
ISA BUS DEVICES
Ultra I/O Controller
The Ultra I/O chip provides support for the following devices:
• two 9-pin serial ports (RS-232-C, 16550 UART buffered)
• one 25-pin parallel port (ECP/EPP bi-directional Centronics, supporting IEEE 1284)
• flexible drive controller (FDC), supporting up to two drives (either flexible disk or tape, or
one of each)
• keyboard and mouse.
A new keyboard (C3758A) is supplied for use with the Windows 95 operating system (though it
will also work with other operating systems).
Audio Controller
Some models of the HP Vectra XM 5/xx series 4 PC may be fitted with the following D3567B
multimedia kit:
• Quadruple-speed (45) IDE CD-ROM drive (D2896B)
• Sound card (5063-7913)
• Headphones (5182-3552)
(Information on multimedia models was not available at the time of printing. The components
are liable to variation until the time of introduction).
Flash ROM
The 256 KB flashable EEPROM chip holds the System ROM firmware. This new software is
described in Chapter 3.

SOFTWARE
Firmware
The BIOS, Setup program and POST routines for the HP Vectra XM 5/xx series 4 PC are
completely new. They are described in detail in Chapter 3.
Preloaded Software
Models with hard disk drives are preloaded with one of the operating systems listed in the
following table. The first time the PC is turned on, a software initialization program runs
to allow the user to set up the preloaded software. For the models with Windows 95, the user
has a once-only choice between Windows 95 and Windows 3.11 during the first power-on.
Models with 8 MB main memory Windows for Workgroups 3.11 +
DOS 6.22
Models with 16 MB of main memory Windows 95 or
Windows for Workgroups 3.11 +
DOS 6.22
Models with product numbers ending in ‘S’ (such as D3975S) OS/2
These operating systems are supplied with the following utilities:
Windows for
Workgroups Windows 95 OS/2
HP video drivers yes yes yes
HP user tools (with video
configuration utility yes yes Not needed, since this functionality is
directly managed
within the operating
system.
Mouse control center yes Not needed, since
this functionality is
directly managed
within the
operating system.
Advanced power management (APM) yes
IDE disk drivers (for 32-bit disk and
file access) yes
ISA Plug and Play configuration utility
(ICU) yes
Remote desktop management
interface (DMI) yes Not yet available Not yet available
On models without a hard disk drive, online utilities and drivers are available in the HP BBS
Library and HP’s FTP library services, as well as on diskettes.
Supported Operating Systems
• MS-DOS version 6.22 and above
• Microsoft Windows 95
• Microsoft Windows for Workgroups 3.11
• Microsoft Windows NT 3.51
• OS/2 version 2.11 and OS/2 version 3.0 (WARP)

Certified Network Operating Systems
• Novell 3.12/4.10 Workstation/Client
Note, however, that HP Vectra PCs are not supported as network servers.
DOCUMENTATION
The table below summarizes the documentation that is available for the HP Vectra XM 5/xx
series 4 PC
.
Only selected publications are available in paper-based form. Most are available as printable
files from the HP regional support servers, or from the
Support Assistant CD-ROM.
Title Regional Support Servers
Support Assistant
CD-ROM
Paper-based
HP Vectra XM 5/xx series 4 PC
User’s Guide yes
yes
D3960A
HP Vectra XM 5/xx series 4 PC
Technical Reference Manual:
Hardware and BIOS
yes
yes
no
HPVectra PC Service
Handbook (9th Edition) yes
yes
5963-8033
HPVectra Accessory Service
Handbook (5th Edition) yes
yes
5963-8034
Network Administrators Guide WinHelp format
yes
no

CHECKPOINT: PRODUCT OVERVIEW AND FEATURES
Now that you have read this chapter, check your understanding. Draw a circle around the
initial letter of each correct answer below. Any number of the given answers (from none, to all
of them) may be correct.
1 What new Intel processors are introduced with this series of PCs?
a Pentium processors of higher frequencies.
b Pentium processors containing more L1 cache memory.
c Pentium processors containing more L2 cache memory.
d Pentium Pro processors (P6).
2 Which of the following could normally be ordered for an
HP Vectra XM
5/120 series 4 PC
which is supplied with 16 MB of main memory?
a One D3647B kit (32-bit EDO, 60 ns).
b Two D3647B kits (32-bit EDO, 60 ns).
c Three D3647B kits (32-bit EDO, 60 ns).
3 What type of network interface is fitted as standard?
a 10/100 VG Selectable PC LAN Adapter on a PCI board.
b 10/100 VG Selectable PC LAN Adapter integrated on the system board.
c Enhanced Ethernet 10 BaseT on a PCI board.
d Enhanced Ethernet 10 BaseT integrated on the system board.
4 Which of the following combinations of full length accessory boards can you install on an
HP Vectra XM 5/100 series 4 PC ?
a One PCI accessory board and three ISA accessory boards.
b Two PCI accessory boards and two ISA accessory boards.
c Two PCI accessory boards and one ISA accessory board.
d Three PCI accessory boards and one ISA accessory board.
5 Which of the following combinations of
extra drives can you install on a model which has
no hard disk (such as a D4221A)?
a One CD-ROM drive, and one 3.5-inch 800 MB tape drive.
b One CD-ROM drive, and one 5.25-inch 1.36 GB tape drive.
c One CD-ROM drive, and one 3.5-inch 1.0 GB hard disk drive.
d One CD-ROM drive, and two 3.5-inch 1.0 GB hard disk drives.

2 PC HARDWARE STRUCTURE
After reading this chapter you will be familiar with the PC’s package and hardware assembly.
You will know where its principle parts are (for fault finding, or upgrade and configuration, for
example), and you will know where and how to install accessories. In particular, the new status
(control) panel is described, and information about installing the BNC Coax adapter on to the
Ethernet 10 BaseT Network board is given.
PACKAGING
This chapter covers the following servicing and installation topics:
• replacing the system board
• installing and replacing accessories:
• replacing the processor
• installing and replacing main memory modules
• upgrading to 2 MB of video memory
• installing and replacing mass-storage drives
• installing the D3979A coax adapter.
The main external features of the desktop package are shown in the diagrams under "Product
Overview" in chapter 1. They are:
• connectors for I/O devices on the rear panel
• three front-access shelves for 3.5-inch or 5.25-inch devices
• new status (control) panel.
The
HP Vectra XM 5/xx series 4 PC has a mid-profile desktop package, like that of the HP
Vectra VL 5/xx series 4 desktop PC
, but has a completely new status (control) panel, with the
following features:
Keyboard lock button with
integral status light
Press-and-hold RESET button
Power on/off button with integrated
on/error status light (which flickers
in power-saving mode)
LAN activity light (for the
network board)
Hard disk activity light
(for IDE drives)
Multimedia models also have a volume control button and a socket for headphones.
The main internal features of the desktop package are:
• removable power supply for easy access to system board components
• one internal rear shelf for 3.5-inch devices
• four accessory board slots for accessories (for example, an audio board)
• system board.

Network I/O panel
Coax adapter
Ethernet 10 BaseT
network board
Internal network cable
Flexible disk drive in a
3.5 shelf
5.25-inch shelf for
CD-ROM drive
Vacant 3.5/5.25-inch
shelf
New status (control)
panel
Main Memory:
8 MB or 16 MB, depending
on model, fitted as standard.
Install pairs of identical
modules in each bank, up to
a maximum of 128 MB. Use
only 4 MB or 8 MB modules
in bank C.
Cache Memory (D3659A):
1 socket containing a
256 KB module, on the
120 MHz, and faster,
models; empty socket, for
an upgrade module, on the
100 MHz and slower
models
Voltage Regulator Module
(VRM):
must match the Pentium
processor voltage
requirement, as indicated
in the system board parts
list
Processor:
Zero Insertion
Force (ZIF)
socket allows
Pentium
processor
upgrades
System Board
Switches
Set switches
1,2,3,4 & 7 when
upgrading the
Pentium
processor
Power supply
(shown dotted)
Video Memory (D3500A):
One pair of sockets for the 1
MB upgrade (taking the 1 MB
already fitted to the maximum
capacity of 2 MB) Accessory slots System board
Doubled-sided back-plane
REPLACING THE SYSTEM BOARD
The system board is shown below. To remove it:
1 Slide the front panel tabs inwards, and remove the cover.
2 Unplug all internal connectors from the system board (Network, HDD, CD-ROM, Flexible
Disk Drive, Power Supply, Speaker, External Battery, Status Panel).
3 Remove the left “side panel”.
4 Pull on the system board handle until the system board is levered free from the
backplane.
5 Lift out the system board.

The ROM on the new system board will have a blank serial number field. This will be detected
automatically by the BIOS, which will then prompt the user to enter the serial number which is
printed on the identification label on the back of the PC.
THE BACKPLANE
The HP Vectra XM 5/xx series 4 PC has a new double-sided backplane. The left-hand side, as
viewed from the front of the PC, is the same as that for the
HP Vectra VL 5/xx series 4 PC .
The right-hand side, as viewed from the front of the PC, has the new PCI slot that
accommodates the Enhanced Ethernet 10 BaseT Network board.

INSTALLING OR REPLACING ACCESSORIES
REPLACING THE PROCESSOR
The 75, 100, 133 and 150 MHz Pentium processors need a passive shorting block VRM
(5063-7939), providing VCC voltage. The 120 and 166 MHz Pentium processors need an
active VRM (5063-7940), providing VRE voltage. The appropriate VRM is provided with each
processor upgrade kit.
The settings of system board switches 1, 2, 3, 4 and 7, as listed in the following table, must
correspond with the operating frequency of the processor that is installed. (You will not need
to change these switches if the new processor is an Intel Overdrive for the old Intel Pentium
processor.) The location of the system board switches is shown in the diagram under
"Replacing the System Board" in this chapter.
Switch
12
Local Bus
Frequency
Switch
347
Frequency
Ratio
Processor :
Local Bus Processor Frequency
Closed Closed 50 MHz Open Open
Open
1.5 : 1 75 MHz
Closed Open 60 MHz Open Open
Closed
1.5 : 1 90 MHz*
Open Closed 66 MHz Open Open
Closed
1.5 : 1 100 MHz
Closed Open 60 MHz Closed Open
Closed
2 : 1 120 MHz
Open Closed 66 MHz Closed Open
Closed
2 : 1 133 MHz
Closed Open 60 MHz Closed Closed
Closed
2.5 : 1 150 MHz
Open Closed 66 MHz Closed Closed
Closed
2.5 : 1 166 MHz
*The 90 MHz model is not available for the HP Vectra XM 5/xx series 4 PCs at the time of printing.
This information is provided for completeness only.
INSTALLING OR REPLACING MAIN MEMORY MODULES
When additional memory modules are installed, the following rules must be applied:
1 Memory modules
must be installed in pairs .

2 The two modules sharing a bank must be identical .
3 Different banks can contain memory module pairs of different sizes.
4 Install only 4 or 16 MB memory modules in bank C.
UPGRADING TO 2 MB OF VIDEO MEMORY
The upgrade kit comprises two modules of 512 KB. These two modules are identical and must
be installed together, in the position shown under "Replacing the System Board" in this
chapter. When inserting the modules, carefully align the corner dot on the module with the
corner marker on the socket. If a module is incorrectly inserted, you will need the PLLC
Extraction Tool (part number 5041-2553) to remove the module from the socket.
INSTALLING OR REPLACING MASS-STORAGE DRIVES
The integrated IDE hard disk controller has two channels (primary, HDD-recommended, with
two grey connectors, and secondary, CD-ROM-recommended, with one red connector).
INSTALLING THE D3979A COAX ADAPTER
The Ethernet 10 BaseT network board is installed underneath the internal, hard disk drive,
rear-shelf. It is plugged into the PCI accessory slot that is situated on the right-hand side of the
double-sided backplane board.
To use a BNC coax connection, instead of the RJ-45 connection, a coax adapter (D3979A) is
required. Its installation is described in the
HP Vectra Accessory Service Handbook (5963-
8034).

CHECKPOINT: PC HARDWARE STRUCTURE
Now that you have read this chapter, check your understanding. Draw a circle around the
initial letter of each correct answer below. Any number of the given answers (from none, to all
of them) may be correct.
1 Which of the following choices of upgrade steps is available from HP when upgrading
main memory?
a 2 MB or 4 MB or 8 MB.
b 2 MB or 4 MB or 8 MB or 16 MB.
c 4 MB or 8 MB or 16 MB.
d 4 MB or 8 MB or 16 MB or 32 MB.
e 8 MB or 16 MB or 32 MB.
f 8 MB or 16 MB or 32 MB or 64 MB.
g 16 MB or 32 MB or 64 MB.
h 16 MB or 32 MB or 64 MB or 128 MB.
2 What is the HP upgrade for extending video memory?
2X6 KB chips X12 KB chips 1 MB chips
2 MB chips
a1X
b2X
c4X
d1X
e2X
f4X
g1X
h2X
i4X
j
1 X
k
2 X
l
4 X
3 Where do you install extra video memory?
a next to the main memory modules
b next to the I/O panel
c next to the IDE connectors
d on a board in an accessory slot.
4 You are installing a hard disk drive (HDD) and a CD-ROM drive. Which data cable
connections do you use?
a HDD to a red connector, CD-ROM to a red connector
b HDD to a red connector, CD-ROM to a grey connector
c HDD to a grey connector, CD-ROM to a red connector
d HDD to a grey connector, CD-ROM to a grey connector
e HDD to a SCSI connector, CD-ROM to a grey connector.

14 What type of network connection is fitted as standard on the back panel?
a RJ-45 UTP for 10 BaseT on all models
b RJ-45 UTP for 100 VG on all models
c BNC coax on all models
d it depends on the model

3 TROUBLESHOOTING AND REPAIR
After reading this chapter you will know which sub-assemblies can be replaced, and
understand the new features of the POST and
Setup .
SYSTEM ROM AND SECURITY SUPPORT
The System ROM consists of a 256 KB flash programmable EEPROM. This contains the
HP Vectra XM 5/xx series 4 PC BIOS program, containing the POST and Setup programs.
These are described in the next section of this chapter.
In addition, the System ROM provides support for the following securityfeatures, to protect
against unauthorized access to the computer and its data:
• power-on prompt, with User or System Administrator password
• power-on keyboard lock, with User or System Administrator password
• communications port protection (ports can be disabled in SETUP)
• disabling or enabling the network interface, the flexible disk drive, the IDE interface, the
hard disk drive boot sector
• write protection of flexible disk drives
• disabling or enabling re-booting from the network interface, the flexible disk drive, the
CD-ROM drive, the hard disk drive
• system configuration protection, with administrator password
• disabling or enabling space bar power-on
• cover lock
• on the desktop models, a security bracket.
After turning on the PC, the POST informs the user if there have been any unsuccessful
attempts at running the PC. It gives the date and time at which the last successful attempt was
made, and the number of unsuccessful attempts.
If, on the other hand, the user has forgotten the User and System Administrator passwords,
they can be cleared by using the system board switches (SW-5 to clear the User and System
Administrator passwords, as indicated under "System Board and Switches" later in this
chapter).
HP BIOS
The system BIOS is identified by the version number GW.07.xx. It incorporates a new field to
represent the “CPU date code”. If the POST routines run without finding any error, the user is
only presented with the following screen.