HP Compaq dc7800, Compaq dc7900 Service and Maintain

Illustrated Parts & Service Map

HP Compaq dc7900 Convertible Minitower
Business PC

© 2008, 2009 Hewlett-Packard Development Company, L.P. The information

contained herein is subject to change without notice. HP shall not be liable for
technical or editorial errors or omissions contained herein. Intel, Pentium,
Intel Inside, and the Intel logo are trademarks or registered trademarks of the
Intel Corporation and its subsidiaries in the U. S. and other countries.

Document Number 506593-002. 2nd Edition March 2009.

Key Specifications

Processor Type Intel Celeron, Pentium Dual-Core, Core2 Duo, Core2 Quad

RAM Type DDR2-SDRAM DIMMs, PC2-6400 (800 MHz) non-ECC

Maximum RAM Supported 8 GB

Expansion Slots • 2 PCIe-x16

Graphics Adapter Integrated Intel GMA 3200 graphics

Drive Support • 4 SATA (2 HDD + 2 Optical)

Bays • 3 external 5.25-inch

I/O Interfaces Serial (2, 1 optional), parallel (optional), eSATA (optional),

•1 PCIe-x1

•3 PCI

• RAID 1 Support

• floppy diskette drive, media card reader, removable hard
disk drive, solid state drive

• 1 external 3.5-inch

• 2 internal 3.5-inch

USB 2.0 (8), USB 2.0, internal on system board (2), RJ-45,
front and rear audio jacks (2 each), PS/2 ports (2), VGA con­nector

Spare Parts

Cables

1 Front USB, I/O assembly, power switch 450708-001

2 eSATA port assembly 497726-001

3 SATA cable, 18 inch, 1 straight end, 1 angled end 393958-001

4 SATA cable, 14 inch, 2 straight ends 391740-001

* Diskette drive cable 439216-001

* DVI cable 484156-001

* DMS-59 to dual VGA cable 463023-001

* Adapter, DVI to VGA 202997-001

*Not shown

Keyboards (not illustrated)

PS/2, Basic
USB, Basic
USB SmartCard

Arabic -171 LA Spanish -161

Belgian -181 Norwegian -091

BHCSY -B41

Brazilian Portuguese -201 Portuguese -131

Czech -221 Romanian -271

Danish -081

Finnish -351 Saudi Arabia* -DE1

French -051 Slovakian -231

French Canadian -121

German -041 Spanish -071

Greek -151 Swedish -101

Hebrew -BB1 Swiss -111

Hungarian -211 Taiwanese -AB1

International -B31 Thai -281

International English -L31

Italian -061 U.S. -001

Japanese -291 U.K. -031

*For 435385-xxx only

435302-xxx
435382-xxx
435385-xxx

People’s Republic of China

Russian -251

South Korea -KD1

Turkish -141

-AA1

Mass Storage Devices (not illustrated)

Diskette drive with bezel 431452-001

Media card reader, 5.25-inch 480033-001

Media card reader, 3.5-inch 507058-001

16X SATA DVD±RW and CD-RW drive with LightScribe 447310-001

16X SATA DVD-ROM drive 419496-001

500 GB SATA hard drive, 3.5-inch 504339-001

320 GB SATA hard drive, 3.5-inch 504338-001

System Unit

1 Access panel 450713-001

2 Chassis not spared

3 5.25-inch bezel blank 335937-001

4 Power supply, 365W, 85% efficient 462434-001

4 Power supply, 365W 437799-001

5 Front bezel 450714-001

* Not shown

250 GB SATA hard drive, 3.5-inch 504337-001

160 GB, 10000-RPM SATA hard drive, 2.5-inch with adapter 508312-001

160 GB SATA hard drive 504336-001

80 GB, 10000-RPM SATA hard drive, 2.5-inch with adapter 508311-001

80 GB, 7200-RPM SATA hard drive, 3.5-inch 449978-001

dc7900 Illustrated Parts & Service Map, CMT Chassis 506593-002 page 1

Standard and Optional Boards

System boards with thermal grease, alcohol pad, and CPU socket cover

1 System board 462431-001

1 System board, excludes ES/CS 490629-001

Memory modules (PC2-6400, CL6)

2 512 MB

21 GB

22 GB

24 GB

Other boards

* Saffron WLAN 802.11a/b/g for use world-wide, includes bracket 498307-001

* Modem, PCIe, 56K, Agere International 56K, includes bracket 490689-001

* Modem, PCI, 56K, Agere International 398661-001

* ATI HD2400 (RV610) 256-MB graphics card, one DMS559 connector

and one S-Video connector, low profile with ATX bracket

* ATI HD3650 (RV635) 512-MB graphics card, two DP 1.1a connectors,

one dual-link DVI connector, includes bracket

* ATI HD3470 (RV620) 256-MB graphics card, one DP 1.1a connector, one

dual-link DVI connector, includes bracket

* Quadro NVS295 256-MB PCIe graphics card 519298-001

* HP nVidia Quadro NVS 290 256-MB graphics card, includes bracket 456137-001

* Broadcom NetXtreme Gbit Ethernet Plus NIC 488293-001

* NIC, GB, Intel PRO/1000, PCIe, full-height 398754-001

* Intel Gigabit NIC, includes bracket 490367-001

* 1394 card 2 external, 1 internal port 441448-001

Intel Celeron Processors with alcohol pad and thermal grease

* 450, 2.2 GHz, 512-KB cache, single core 508256-001

* 440, 2.0 GHz, 512-KB cache, single core 449166-001

* E1500, 2.2 GHz, 512-MB cache, dual core 516899-001

* E1400, 2.0 GHz, 512-MB cache, dual core 491574-001

* E1200, 1.6 GHz, 512-MB cache, dual core 468589-001

Intel Pentium Dual Core Processors with alcohol pad and thermal grease

* E5400, 2.7 GHz, 2-MB L2 cache 531989-001

* E5200, 2.5 GHz, 2-MB L2 cache 503382-001

* E2220, 2.4 GHz, 1-MB L2 cache 480714-001

* E2200, 2.2 GHz, 1-MB L2 cache 465216-001

Intel Core 2 Quad Processors with alcohol pad and thermal grease

* Q9650, 3.00 GHz, 12-MB L2 cache 497734-001

* Q9550, 2.83 GHz, 12-MB L2 cache 465758-001

* Q9400, 2.66 GHz, 6-MB L2 cache 497733-001

* Q8300, 2.50 GHz, 4-MB L2 cache 516901-001

* Q8200, 2.33 GHz, 4-MB L2 cache 503381-001

Intel Core 2 Duo Processors with alcohol pad and thermal grease

* E8600, 3.33 GHz, 6-MB L2 cache 497732-001

* E8500, 3.16 GHz, 6-MB L2 cache 466170-001

* E8400, 3.00 GHz, 6-MB L2 cache 509554-001

* E8300, 2.83 GHz, 6-MB L2 cache 466168-001

* E7500, 2.93 GHz, 3-MB L2 cache 531988-001

* E7400, 2.80 GHz, 3-MB L2 cache 508255-001

* E7300, 2.66 GHz, 3-MB L2 cache 500134-001

* E7200, 2.53 GHz, 3-MB L2 cache 490507-001

* E5300, 2.60 GHz, 2-MB L2 cache 516900-001

* Not shown

418952-001

418951-001

457624-001

497735-001

462477-001

481421-001

483951-001

Miscellaneous Parts

1 Fan holder, system fan 450710-001

2 Fan holder, CPU 450709-001

3 Chassis fan 450711-001

4 Fan, heatsink 455310-001

* Heatsink with alcohol pad and factory-applied thermal grease 490812-001

* Fan duct 450707-001

* Internal speaker 430129-001

* Hood sensor 392417-001

* Grommet, hard drive isolation 450712-001

* Solenoid lock 392416-001

* Mouse, PS2, optical 417966-001

* Mouse, optical 390938-001

* Mouse, laser 459821-001

* Printer port 497727-001

* 2nd serial port 392414-001

* Modem cable 198220-001

* Hard drive, removable carrier 444873-001

* Hard drive, removable frame 444872-001

*Not shown
LP = Low profile
FH = Full height

Modem RJ-11 adapters (not illustrated)

Austrian 417561-011 Italian 316904-065

Belgian 316904-181 Netherlands 316920-335

Czechoslovakian 234963-221 Polish 316904-241

French 316904-051 Saudi Arabian 316904-AR1

German 316904-045 Scandinavian 382848-DH1

Greek 316904-151 Swiss 417562-111

Hungarian 234963-215 Turkish 316904-141

Israel 316904-BB1 United Kingdom 158593-035

dc7900 Illustrated Parts & Service Map, CMT Chassis 506593-002 page 2