HP Compaq DC7700

Processors

 * Intel Celeron D 326 Processor (2.53-GHz, 256K L2 cache, 533-MHz FSB)
 * Intel Celeron D 347 Processor (3.06-GHz, 512K L2 cache, 533-MHz FSB)
 * Intel Celeron D 351 Processor (3.20-GHz, 256K L2 cache, 533-MHz FSB)
 * Intel Celeron D 352 Processor (3.20-GHz, 512K L2 cache, 533-MHz FSB)
 * Intel Celeron D 360 Processor (3.46-GHz, 512K L2 cache, 533-MHz FSB)


 * Intel Pentium 4 HT 524 Processor (3.06-GHz, 1-MB L2 cache, 533 -MHz FSB)
 * Intel Pentium 4 HT 531 Processor (3.0-GHz, 1-MB L2 cache, 800-MHz FSB)
 * Intel Pentium 4 HT 541 Processor (3.2-GHz, 1-MB L2 cache, 800-MHz FSB)
 * Intel Pentium 4 HT 631 Processor (3.0-GHz, 2-MB L2 cache, 800-MHz FSB)
 * Intel Pentium 4 HT 641 Processor (3.2-GHz, 2-MB L2 cache, 800-MHz FSB)
 * Intel Pentium 4 HT 651 Processor (3.4-GHz, 2-MB L2 cache, 800-MHz FSB)
 * Intel Pentium 4 HT 661 Processor (3.6-GHz, 2-MB L2 cache, 800-MHz FSB)


 * Intel Pentium D 820 Processor (2.8-GHz, 2x1MB L2 cache, 800-MHz FSB
 * Intel Pentium D 915 Processor (2.8-GHz, 2x2MB L2 cache, 800-MHz FSB
 * Intel Pentium D 925 Processor (3.0-GHz, 2x2MB L2 cache, 800-MHz FSB)
 * Intel Pentium D 945 Processor (3.4-GHz, 2x2MB L2 cache, 800-MHz FSB)


 * Intel Core 2 Duo E6300 Processor (1.86-GHz, 2 MB L2 cache, 1066-MHz FSB)
 * Intel Core 2 Duo E6400 Processor (2.13-GHz, 2 MB L2 cache, 1066-MHz FSB)
 * Intel Core 2 Duo E6600 Processor (2.40-GHz, 4 MB L2 cache, 1066-MHz FSB)
 * Intel Core 2 Duo E6700 Processor (2.66-GHz, 4 MB L2 cache, 1066-MHz FSB)

Chipset

 * Intel Q965 Express chipset

Memory

 * 512-MB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 512)
 * 512-MB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 256)
 * 1-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 1GB)
 * 1-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 512)
 * 2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 1GB)
 * 2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 512) (does not support USDT models)
 * 3-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (3 x 1GB) X X X
 * 4-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 1GB) (does not support USDT models)
 * 512-MB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 512)
 * 512-MB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 256)
 * 1-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 1GB)
 * 1-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 512)
 * 2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 1GB)
 * 2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 512) (does not support USDT models)
 * 3-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (3 x 1GB)
 * 4-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 1GB) (does not support USDT models)

Hard Drive

 * 80-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm)
 * 160-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm)
 * 250-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm)
 * RAID 80-GB SATA 3.0-Gb/s Hard Drive (7200 rpm) (does not support USDT models)
 * RAID 160-GB SATA 3.0-Gb/s Hard Drive (7200 rpm) (does not support USDT models)
 * RAID 250-GB SATA 3.0-Gb/s Hard Drive (7200 rpm) (does not support USDT models)
 * 2nd hard drive, 80-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm) (does not support USDT models)
 * 2nd hard drive, 160-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm) (does not support USDT models)
 * 2nd hard drive, 250-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 rpm) (does not support USDT models)

Diskette Drives

 * 1.44-MB Diskette Drive (does not support USDT models)

Optical Drives
NOTE: The Optical Drives on the list does not support USDT models
 * SATA CD-ROM Drive
 * SATA CD-RW/DVD-ROM Combo Drive
 * SATA DVD-ROM Drive
 * SATA DVD+/-RW (DL/DF) LightScribe Drive

Slimline Optical Drives
NOTE: The Slimline Optical Drives on the list does not support SFF or MT models
 * PATA CD-ROM Slim Drive
 * PATA CD-RW/DVD-ROM Combo Slim Drive
 * PATA DVD+/-RW Slim Drive
 * PATA DVD-ROM Slim Drive

Media Card Reader

 * HP 16-in-1 3.5" Media Card Reader w/ PCI card (does not support USDT and MT models)
 * HP 16-in-1 5.25" Media Card Reader w/ PCI card (does not support USDT and SFF models)

Security

 * Integrated 1.2 TPM Embedded Security Chip
 * Drive Lock
 * HP ProtectTools Embedded Security Software
 * Serial, Parallel, USB Enable/Disable (via BIOS)
 * Removable Media Write/Boot Control
 * Power-On Password (via BIOS)
 * Setup Password (via BIOS)
 * Solenoid Hood Lock / Sensor (does not support USDT models)
 * Hood Removal Sensor (does not SFF and MT models)

NIC

 * Intel 82566DM Gigabit Network Connection (integrated on system board)
 * Intel PRO/1000 PT PCIe Gigabit NIC (full height bracket) (does not support USDT or SFF models)
 * Intel PRO/1000 PT PCIe Gigabit NIC (low profile bracket) (does not support USDT or MT models)
 * Broadcom NetXtreme Gigabit PCIe NIC (full height bracket) (does not support USDT or MT models)
 * Broadcom NetXtreme Gigabit PCIe NIC (low profile bracket) (does not support MT models)

Wireless

 * Wireless A+G PCI Card (full height bracket)
 * Wireless A+G PCI Card (low profile bracket) (does not support USDT or MT models)

Modem

 * Agere 2006 PCI 56K International SoftModem (full height)
 * Agere 2006 PCI 56K International SoftModem (low profile) (does not support USDT or MT models)

Graphics

 * Integrated Intel Graphics Media Accelerator 3000
 * DVI ADD2 SDVO single head Graphics Adapter for USDT (PCIe x16) (not supported on SFF or MT models)
 * DVI ADD2 SDVO single head low profile Graphics Adapter (PCIe x16) (not supported on USDT or MT models)
 * DVI ADD2 SDVO single head full-height Graphics Adapter (PCIe x16) (not supported on USDT or SFF models)
 * ATI Radeon X1300 (256MB SH) low profile PCIe Card, DVI w/TV (not supported on MT models)
 * ATI Radeon X1300 (256MB SH) full-height PCIe Card, DVI w/TV (not supported on USDT or SFF models)
 * ATI Radeon X1300 Pro (256MB DH) low profile PCIe Graphics Card (not supported on MT models)
 * ATI Radeon X1300 Pro (256MB DH) full-height PCIe Graphics Card (not supported on USDT or SFF models)
 * ATI Radeon X1600XT (256MB DH) full-height PCIe Card, DVI w/TV-out (not supported on USDT or SFF models)
 * NVIDIA Quadro NVS 280 (64MB DH) PCI VGA Card
 * NVIDIA Quadro NVS 285 (128MB DH) PCIe x16 VGA Card

Audio

 * Integrated High Definition audio with Realtek 4-channel ALC262 codec (all ports are stereo)
 * Microphone and Headphone front ports
 * Microphone rear port* (not available for USDT or SFF models)
 * Line-out and Line-In rear ports
 * Multistreaming capable
 * Internal Speaker

Miscellaneous

 * HP FireWire / IEEE 1394 PCI Card (full height)
 * HP FireWire / IEEE 1394 PCI Card (low profile) (not supported on USDT or MT models)
 * PCI Express riser card – adds 1 low profile PCIe x16 slot (not supported on SFF or MT models)
 * PCI riser card – adds 1 full-height PCI slot (not supported on SFF or MT models)
 * PCI riser card – adds 2 full-height PCI slots (not supported on USDT or MT models)
 * PCI extender card for CMT (adds 2 PCI slots) (not supported on USDT or SFF models)
 * PCI Serial and parallel I/O adapter (not supported on SFF or MT models)
 * 2nd serial port adapter (full height) (not supported on USDT or SFF models)
 * 2nd serial port adapter (low profile) (not supported on USDT or MT models)
 * Tower stand (not supported on MT models)
 * Configure dc7700 CMT in desktop orientation (not supported on USDT or SFF models)

Operating System

 * Microsoft Windows XP Professional SP2
 * Microsoft Windows XP Home SP2
 * FreeDOS

Source
http://h10032.www1.hp.com/ctg/Manual/c01609415.pdf