HP Compaq DC5750

Processors

 * AMD Sempron 3400+ Processor (1.8-GHz, 256K L2 cache, 1600-MHz FSB)
 * AMD Sempron 3600+ Processor (2.0-GHz, 256K L2 cache, 1600-MHz FSB)


 * AMD Athlon 64 3500+ Processor (2.2-GHz, 512K L2 cache, 2000-MHz FSB)
 * AMD Athlon 64 3800+ Processor (2.4-GHz, 512K L2 cache, 2000-MHz FSB)


 * AMD Athlon 64 X2 Dual-Core 3800+ Processor (2.0-GHz, 2x512K L2 cache, 2000-MHz FSB)
 * AMD Athlon 64 X2 Dual-Core 4200+ Processor (2.2-GHz, 2x512K L2 cache, 2000-MHz FSB)
 * AMDAthlon 64 X2 Dual-Core 4600+ Processor (2.4-GHz, 2x512K L2 cache, 2000-MHz FSB)
 * AMD Athlon 64 X2 Dual-Core 5000+ Processor (2.6-GHz, 2x512K L2 cache, 2000-MHz FSB)
 * AMD Athlon 64 X2 Dual-Core 5200+ Processor (2.6-GHz, 2x1MB L2 cache, 2000-MHz FSB)

Chipset

 * ATI Express 1150 Chipset

Memory

 * 512-MB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 512)
 * 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)
 * 256-MB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 256)
 * 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 (2 x 512)
 * 1-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 1GB)
 * 2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 512)
 * 2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 1GB)
 * 3-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 512, 2 x 1GB)
 * 4-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 1GB)

Hard Drive

 * 80-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * 160-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * 250-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * RAID 80-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * RAID 160-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * RAID 250-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * 2nd hard drive, 80-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * 2nd hard drive, 160-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)
 * 2nd hard drive, 250-GB SATA 3.0-Gb/s Hard Drive (7200 rpm)

Diskette Drives

 * 1.44-MB Diskette Drive

Media Reader

 * HP 16-in-1 Media Reader (USB connection on the system board)

Optical Drive

 * SATA DVD-ROM Drive
 * SATA CD-RW/DVD-ROM Combo Drive
 * SATA DVD+/-RW (DL/DF) LightScribe Drive

Security

 * 1.2 TPM Embedded Security Chip integrated with Broadcom NIC
 * HP ProtectTools Security Software Suite with BIOS Configuration (Serial, Parallel, USB Enable/Disable), Credential Manager, Smart Card Manager
 * HP Desktop Security lock kit (lock and cable)
 * Security cable with Kensington lock

NIC

 * Broadcom 5755 Gigabit Ethernet integrated on system board

Wireless

 * Wireless A+G PCI Card (full height bracket) (not supported on SFF models)
 * Wireless A+G PCI Card (low profile bracket) (not supported on MT models)

Modem

 * 2006 Agere PCI 56K International SoftModem (full height) (not supported on SFF models)
 * 2006 Agere PCI 56K International SoftModem (low profile) (not supported on MT models)

Graphics

 * Integrated ATI Radeon X300 graphics with VGA and DVI-D
 * ATI Radeon X1300 Pro (256MB SH) PCIe Graphics Card
 * ATI Radeon X1300 Pro (256MB DH) PCIe Graphics Card
 * ATI Radeon X1600XT (256MB DH FH) PCIe Graphics Card (not supported on SFF models)

Audio

 * Integrated High Definition audio with Realtek 2 channel ALC260 codec (all ports are stereo)
 * Microphone and Headphone front ports
 * Line-out and Line-In rear ports
 * Aux Input connection on system board
 * Internal Speaker

Miscellaneous

 * HP FireWire / IEEE 1394 PCI Card (full height) (not supported on SFF models)
 * HP FireWire / IEEE 1394 PCI Card (low profile) (not supported on MT models)
 * 2nd serial port adapter (not supported on SFF models)
 * 2nd serial port adapter (low profile) (not supported on MT models)
 * Tower stand (not supported on MT models)

Operating System

 * Genuine Windows 7 Professional
 * Genuine Windows 7 Home premium
 * FreeDOS

Source
http://h10032.www1.hp.com/ctg/Manual/c01609323.pdf