HP Net PC 20 Installation instructions
HP Thin Clients SMC_Unisys / HP Small PC 20 / HP Net PC 20 1-1
1
1
SMC_Unisys / HP Small PC 20 /
HP Net PC 20
Models and Accessories
All models have an integrated ATI Rage IIC/Pro AGP video controller, 4 MB of
integrated video RAM, and an integrated Intel 10/100BT LAN interface.
Product
Number
Cache
Memory
Hard Drive Std. RAM CD-ROM Floppy
Disk Drive
OS1
SMC_Unisys
SMC_Unisys Celeron/266 (CPL: 11/98 )
D7680A 0 KB 3.2 GB IDE 32 MB SDRAM no yes Win 95
D7684N 6.4 GB IDE 64 MB SDRAM Win NT 4.0
D7687A 3.2 GB IDE 32 MB SDRAM Win 98
SMC_Unisys Celeron/300A (CPL: 11/98 )
D7681A 128 KB 3.2 GB IDE 32 MB SDRAM no yes Win 95
D7685N 6.4 GB IDE 64 MB SDRAM Win NT 4.0
D7688A 3.2 GB IDE 32 MB SDRAM Win 98
SMC_Unisys Pentium II/333 (CPL: 11/98 )
D7682A 512 KB 3.2 GB IDE 32 MB SDRAM no yes Win 95
D7683A yes
D7686N 6.4 GB IDE 64 MB SDRAM no Win NT 4.0
D7689A yes Win 98
D7690A 128 MB SDRAM
D7691A Win NT 4.0
HP Small PC 20
HP Small PC 20 Celeron/300A (CPL: 11/98 )
D6881A 128 KB 3.2 GB IDE 64 MB SDRAM no yes Win NT 4.0
D6882A 32 MB SDRAM
HP Small PC 20 Pentium II/333 (CPL: 11/98 )
D6883N 512 KB 3.2 GB IDE 64 MB SDRAM no yes Win NT 4.0
D6884A 6.4 GB IDE yes
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SMC_Unisys / HP Small PC 20 / HP Net PC 20
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Supported Accessories
Support Documentation
Support documentation is available from the HP Web site at:
http://www.hp.com/go/thinclientsupport/.
HP Net PC 20
HP Net PC 20 Pentium II/333 (CPL: 11/98 )
D6871N 512 KB 3.2 GB IDE 32 MB SDRAM no no Win NT 4.0
D6872N 64 MB SDRAM
D6873N 6.4 GB IDE
1. Operating system preloaded on these models, as indicated in the table.
Memory
32-MB SDRAM-100MHz non-ECC DIMM D6501A
32-MB SDRAM-100MHz non-ECC DIMM (pack of 20) D6504A
64-MB SDRAM-100MHz non-ECC DIMM D6502A
64-MB SDRAM-100MHz non-ECC DIMM (pack of 20) D6505A
128-MB SDRAM-100MHz non-ECC DIMM D6503A
Documentation
HP Small Desktop Quick Start manual D7680-90001A
Input Devices
HP Mouse with mini-DIN interface C3751B
HP Scrolling Mouse C4736A
HP Windows Keyboard C4735A
Multimedia
HP Slim CD-ROM Drive and Cable D6889A
Other
HP Feet (Stands) for HP Small Desktop Products D6880A
Product
Number
Cache
Memory
Hard Drive Std. RAM CD-ROM Floppy
Disk Drive
OS1
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SMC_Unisys / HP Small PC 20 / HP Net PC 20
HP Thin Clients SMC_Unisys / HP Small PC 20 / HP Net PC 20 1-3
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System Board, BIOS, and Memory
DIMM1
DIMM2
SLOT 1
Processor:
Intel Pentium II or
Intel Celeron module.
Main Memory:
Two DIMM sockets which support up to
256 MB of memory.
Install 32 MB, 64 MB, or 128 MB SDRAM
modules.
System Board Jumpers:
For system board jumper settings, refer to the tables
on the next page.
AGPset 82443EX
Rear Panel Connectors
Rage IIC/PRO AGP
Backplane Slot
PCI set 82371 LAN chip
82558
ROM BIOS
CD-ROM Drive Connector
Primary IDE Connector
Floppy Disk Drive Connector
256K
x 2
256K
x 2
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System Board Jumpers
Processor Speed
Clear CMOS
Flash ROM Type Select
BIOS History
For the latest BIOS, the flasher utility program, and the BIOS history refer to the
HP World Wide Web site.
CPU Speed Pin Number
7-8 5-6 3-4 1-2
233 ON ON OFF OFF
266 ON OFF ON ON
300 ON OFF ON OFF
333 ON OFF OFF ON
366 ON OFF OFF OFF
400 OFF ON ON ON
Function CMOS_CLR
Normal
(default)
Clear
http://www.hp.com/go/thinclientsupport/
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Part Numbers
5a
4
3
6
7
8
10
9
11
1
1a
1b
1c
2
5b
5c
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Parts List
Item Description Repl.
Part Number
Exchange
Part Number
1 Box Assembly:
a Chassis Top Cover
b Front Panel Chassis
c Main Chassis
5064-7441 —
2 Front bezel (with knobs and lens) 5.25” cover
(HP silkscreen)
Front bezel (with knobs and lens) 5.25” cover
(HP for Unisys silkscreen)
5042-3068
5042-3070
—
—
3 System Board
Also refer to PC’s system board parts list
D7680-63001 D7680-69001
4 Power supply unit 0950-3433 —
5 Internal Cables Kit:
a FDD cable
b HDD cable
c CD-ROM cable and adapter
Not shown: HDD power cable
5064-7443
6Slim 24✕Max CD-ROM drive 5064-7444 —
7Slim floppy disk drive 5064-7445 —
8 HP Small PC 20 Backplane with metal adapter 5064-7446 —
9 HP Net PC 20 Backplane with metal adapter
(does not include an ISA slot)
5064-7458 —
10 Hard Disk Drives:
3.2 GB
6.4 GB
D6931-63001
D6698-63001
D6931-69001
D6698-69001
11 HP Mouse C3751-60201 —
Not
Shown
Status Panel with LEDs 5064-7442 —
Battery (type: CR2032) 1420-0356 —
Standard HP Keyboard C4735-603xx1
1. Where “xx” is the code for your national keyboard.
—
HP Keyboard C4732-603xx1—
HP Recovery CD-ROM 5011-6620 —
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HP Thin Clients SMC_Unisys / HP Small PC 20 / HP Net PC 20 1-7
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Notes: ______________________________________________________________
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System Board Parts List
Description Repl.
Part Number
Exchange
Part Number
Processor:
Intel Pentium II 333/66 with FIC heat sink
Intel Celeron 300A/66 with FIC heat sink
D7680-63101
5064-7452
D7680-69101
—
Main memory modules:
1 ✕32-MB main memory 60-ns SDRAM 1818-7318 —
1 ✕64-MB main memory 60-ns SDRAM 1818-7321 —
1 ✕128-MB main memory 60-ns SDRAM 1818-7327 —
Manuals and Documentation1
1. Go to HP’s Support Web Site at http://www.hp.com/go/thinclientsupport/.
Quick Start manual D7680-90001
Familiarization Guide 5967-72972
2. Electronic file only.
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