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Familiarization Guide
HP Small PC 20
HP Net PC 20
This guide is for experienced technicians who have already completed an HP PC family training course. It is a selfpaced training guide designed to train you to repair the PC. It contains information specific only to the repair of these PCs. For more information about upgrading the PC, refer to the documentation supplied with the PC or to HP’s Support Web site at http://www.hp.com/go/thinclientsupport.
Notice
The 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.
This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.
Windows® is a U.S. registered trademark of the Microsoft Corporation.
CeleronTM is a trademark, and Pentium® is a U.S. registered trademark of the Intel Corporation.
Hewlett-Packard France
Thin Client Operation
38053 Grenoble Cedex 9
France
ã 1998 Hewlett-Packard Company
Contents
Electrostatic Discharge Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Care of Hard Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
HP PC Product Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Some Product Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
System Board and Backplane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
System Board Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Removing and Replacing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . 14
Removing the Front Panel Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installing a Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installing a Slim CD-ROM Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installing a Slim Floppy Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installing Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Removing and Replacing the Power Supply Unit . . . . . . . . . . . . . . 24
Removing and Replacing the System Board. . . . . . . . . . . . . . . . . . . 25
Support Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Flashing the Latest Version of the System BIOS. . . . . . . . . . . . . . . . . . . 26 Accessing the BIOS Setup Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Viewing Power On Self Test (POST) Information. . . . . . . . . . . . . . . . . . 26 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3
Contents
Where to Find More Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Complete the Questionnaire to Check Your Understanding . . . . . 28
Answers and Explanations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4
Electrostatic Discharge Warning
Electrostatic Discharge Warning
Electrostatic Discharge (ESD) can damage processors, memory, disks, accessory boards and other components.
When installing or replacing a component:
1Do not take the new component out of its ESD package before connecting your wrist strap and ESD mat to a suitably earthed (grounded) point.
2Do not forget to use the ESD package provided with the new part to return the old part. The ESD package is conductive and is easy to recognize from its label.
ESD Label
5
Care of Hard Disk Drives
Care of Hard Disk Drives
Hard disk drives are delicate and are very sensitive to shocks or vibration. When installing a hard disk accessory, be careful not to drop or knock the drive. Any shock may damage the drive and prevent it from functioning correctly.
Hard disk drives already installed in HP PCs are also sensitive to shocks. If the PC’s system unit is knocked or dropped accidentally, this may cause damage to installed hard disk drives.
Avoid striking the PC
Don’t move the PC when powered on
Don’t knock the hard disk during installation
6
HP PC Product Comparison
HP PC Product Comparison
The following table shows the product features of the HP Small PC 20 / HP Net PC 20 and the HP Vectra VE 8 PC.
Component |
HP Vectra VE 8/xxx PC |
HP Small PC 20 / HP Net PC 20 |
|
|
|
Microprocessor |
Intel Pentium® II for Slot 1, 266, 333, 350, or |
Intel Pentium II for Slot 1, 333 MHz, 32 KB of |
|
400 MHz, 32 KB of level-1 cache memory, 512 |
level-1 cache memory, 512 KB of level-2 cache |
|
KB of level-2 cache memory |
memory |
|
|
OR |
|
|
Intel CeleronTM, 266, 300A or 333 MHz, 32 KB |
|
|
of level-1 cache memory, 128 KB of level-2 |
|
|
cache memory in 300A and 333 MHz models, 0 |
|
|
KB of level-2 cache in 266 MHz models |
|
|
|
Chipset |
Intel 440BX AGPset, 66 or 100 MHz bus speed. |
Intel 440EX AGPset, 66 MHz bus speed. |
|
● AGP-enabled (Accelerated Graphics Port) for |
● AGP-enabled (Accelerated Graphics Port) for |
|
enhanced graphics performance in Intel Pentium |
enhanced graphics performance in Intel Pentium |
|
II-based systems |
II and Celeron-based systems |
|
● ACPI (Advanced Configuration and Power |
● ACPI (Advanced Configuration and Power |
|
Interface) support |
Interface) ready |
|
● Ultra DMA/33 hard disk support (on Primary |
● Ultra DMA/33 hard disk support |
|
and Secondary IDE channels) |
● SDRAM memory allows real-time data |
|
● SDRAM memory allows real-time data transfer |
transfer from the processor, eliminating |
|
from the processor, eliminating bottlenecks and |
bottlenecks and improving overall system |
|
improving overall system performance |
performance |
|
|
|
Memory |
32 or 64 MB installed, 384 MB maximum of non- |
32, 64, or 128 MB installed, 256 MB maximum |
|
ECC SDRAM in three DIMM sockets |
of non-ECC SDRAM in two DIMM sockets |
|
|
|
Hard Disks |
3.2, 4.3, or 6.4 GB Ultra ATA SMART II |
3.2 or 6.4 GB Ultra ATA SMART |
|
|
|
Flexible disk drive |
3.5-inch, 1.44 MB capacity |
Slim 3.5-inch, 1.44 MB capacity (some models) |
|
|
|
CD-ROM |
32X IDE (some models) |
12.7 mm Slim 24X IDE (some models) |
|
|
|
Audio Interface |
Sound Blaster Pro compatible (Aztech) audio |
Integrated ISA-based CrystalClear CS4235 3D |
|
board (some models) |
Sound Blaster, Sound Blaster Pro and Windows |
|
|
Sound System compatible |
|
|
|
LAN Interface |
3Com 905B-TX or Intel 10/100Base-T LAN board |
Integrated Intel 10/100BT with RPO/WuOL |
|
|
|
Graphics |
Matrox Productiva M100 AGP board, 4 MB EDO |
Integrated AGP-based ATI RAGE IIC/PRO AGP |
|
(not upgradeable) on AGP bus |
controller with onboard 4 MB SGRAM (not |
|
|
upgradeable) |
|
|
|
Operating Systems |
Windows NT4 (Service Pack 3) or Windows 95 |
Windows NT 4, Windows 95 or Windows 98 |
|
(SR 2.5) |
|
|
|
|
7
HP PC Product Comparison
Component |
HP Vectra VE 8/xxx PC |
HP Small PC 20 / HP Net PC 20 |
|
|
|
|
|
Connectors |
2 serial, 1 parallel, keyboard, mouse, 2 stacked |
2 serial, 1 parallel with ECP/EPP, keyboard, |
|
|
USB, 15-pin VGA |
mouse, 2 USB, 1 RJ45 LAN, 1 D-sub 15-pin |
|
|
|
VGA, 3 audio: 1 Mic-in, 1 Line-in, and 1 Line-out |
|
|
|
|
|
Expandability |
5 drive shelves: 3 front-access and 2 internal |
3 drive shelves: 2 front-access and 1 internal |
|
(desktop) |
Accessory Slots: 4 PCI, 1 ISA, |
Accessory slots: 1 PCI and 1 PCI/ISA |
|
|
1 ISA/PCI combination |
combination. (The HP Net PC 20 does not have |
|
|
|
an ISA slot.) |
|
Expandability |
6 drive shelves: 4 front-access and 2 internal |
||
|
|||
(minitower) |
Accessory Slots: 4 PCI, 1 ISA, |
(The minitower model is the same as the |
|
|
1 ISA/PCI combination |
||
|
desktop model, but on a stand.) |
||
|
|
||
|
|
|
|
BIOS |
AMI standard BIOS |
AwardBIOS with 2 MB Flash EEPROM, DMI 2.0 |
|
|
|
compliant |
|
|
|
|
|
Power Supply |
Manually switched 115/230 VAC, 145 W |
100 to 240 VAC (manually switched), 85 Watt |
|
|
continuous output |
|
|
|
|
|
|
Input/Output Cables |
Primary IDE cable: Ultra ATA |
Primary IDE cable: Ultra ATA |
|
|
Secondary IDE (CD-ROM) cable: Standard IDE |
Secondary IDE (CD-ROM) cable: Standard IDE |
|
|
Floppy disk drive cable |
slim cable |
|
|
|
Floppy disk drive cable |
|
|
Note: both IDE channels are Ultra ATA |
|
|
|
|
|
|
System Management |
DMI 2.0 / SMBIOS 1.x, HP TopTools 3.0, HP |
DMI 2.0, ACPI-ready, TopTools Console, |
|
|
DiagTools 2.0 |
OpenView DTA |
|
|
|
|
8
Some Product Features
Some Product Features
Intel Celeron Processor The Intel Celeron processor 333, 300A and 266 MHz provides ideal performance for applications running on operating systems such as Windows 95. All Intel Celeron processors are based on Intel’s 0.25 micron CMOS process technology. The Intel Celeron processor also benefits from the same P6 microarchitecture core as the Pentium II processor.
Intel 440EX AGPset
Features
Bus Details
This Intel chipset, which is based on the Intel 440LX chipset, is optimized for Intel Celeron processor-based systems. It provides ACPI-compliance to permit increased manageability across the corporate network. It is AGP-enabled for enhanced graphics performance. The chipset also provides support for Ultra DMA/33. No Error Correcting Code (ECC) support is provided.
Bus |
|
Speed |
Size |
Transfer Rate |
|
|
|
|
|
Host (Front Side Bus, Processor- |
66 |
MHz |
64 bit |
528 MB/sec |
Local, System) |
|
|
|
|
|
|
|
|
|
AGP |
66 |
MHz (double- |
32 bit |
528 MB/sec |
|
clocked) |
|
|
|
|
|
|
|
|
PCI |
33 |
MHz |
32 bit |
132 MB/sec |
|
|
|
|
|
ISA |
8.25 MHz |
16 bit |
16 MB/sec |
|
|
|
|
|
|
Video: ATI RAGE IIC/PRO
AGP Chip
The system comes with an integrated AGP-based ATI RAGE IIC/PRO AGP controller chip. This VGA controller offers output pixel data rates with noninterlaced screen resolutions of up to 1600x1200x65k colors at a refresh rate of 76Hz (4 MB). The AGP controller enables the system to have a higher performance under Windows and other GUI (Graphics User Interface) environments, plus optimizations which result in even more impressive 2D and 3D performance.
The RAGE IIC/PRO delivers 3D performance unmatched in its class, along with a comprehensive list of 3D features including perspectively correct texturing, mipmapping, bilinear and trilinear filtering, z-buffering, video texturing, Gouraud shading, and alpha blending.
The RAGE IIC/PRO incorporates excellent video support, suitable for MPEG-2 content and video conferencing acceleration. In addition to offering increased performance and design flexibility, the RAGE IIC/PRO adds full PCI Power Management support.
9
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