HP Compaq DC5850

Processors

 * AMD Sempron X2 2200 Processor (2.0-GHz, 512K L2 cache, HT bus 2.0)
 * AMD Sempron LE-1300 Processor (2.3-GHz, 512K L2 cache, HT bus 1.0)
 * AMD Sempron LE-1250 Processor (2.2-GHz, 512K L2 cache, HT bus 1.0)
 * AMD Athlon LE-1640B Processor (2.7-GHz, 512K L2 cache, HT bus 2.0)
 * AMD Athlon X2 7750 Processor (2.7-GHz, 1MB L2 cache, 2 MB Shared L3 cache, HT bus 3.0)
 * AMD Athlon X2 6000+ Processor (3.1-GHz, 1MB L2 cache, HT bus 3.0)
 * AMD Athlon X2 5800+ Processor (3.0-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 5600B Processor (2.9-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 5400B Processor (2.8-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 5200B Processor (2.7-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 5000B Processor (2.6-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 4850B Processor (2.5-GHz, 1MB L2 cache, HT bus 2.0)
 * AMD Athlon X2 4450B Processor (2.3-GHz, 1MB L2 cache, HT bus 2.0)


 * AMD Phenom II X3 710 Processor, (2.6-GHz, 1.5 MB Dedicated L2 cache, 6 MB Shared L3 cache, HT bus 3.0) (not available on SFF models)
 * AMD Phenom X3 8600B Processor (2.3-GHz, 1.5 MB Dedicated L2 cache, 2 MB Shared L3 cache, HT bus 3.0)
 * AMD Phenom X3 8750B Processor (2.4-GHz, 1.5 MB Dedicated L2 cache, 2 MB Shared L3 cache, HT bus 3.0)


 * AMD Phenom II X4 805 Processor, (2.5-GHz, 2 MB Dedicated L2 cache, 4 MB Shared L3 cache, HT bus 3.0) (not available on SFF models)
 * AMD Phenom X4 9600B Processor (2.3-GHz, 2 MB Dedicated L2 cache, 2 MB Shared L3 cache, HT bus 3.0)
 * AMD Phenom X4 9750B Processor (2.4-GHz, 2 MB Dedicated L2 cache, 2 MB Shared L3 cache, HT bus 3.0)
 * AMD Phenom X4 9850B processor (2.5 GHz, 2 MB Dedicated L2 cache, 2 MB Shared L3 cache, HT bus 3.0)

Chipset

 * AMD 780V 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 (1 x 2GB)
 * 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)
 * 3-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (3 x 1GB)
 * 4-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 1GB)
 * 4-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 2GB)
 * 8-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 2GB)
 * 16-GB DDR2 Synch Dram PC2-6400 (800-Mhz) Non ECC (4 x 4GB)
 * 80-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 160-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 250-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 500-GB SATA 3.0-Gb/s Hard Drive (16MB Cache, 7200 RPM, NCQ, Smart IV)
 * 80-GB SATA 3.0-Gb/s Hard Drive (16MB Cache, 10,000 RPM, NCQ, Smart III)
 * 160-GB SATA 3.0-Gb/s Hard Drive (16MB Cache, 10,000 RPM, NCQ, Smart III)
 * 320-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 3.5" Removable 80-GB SATA 3.0 Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 3.5" Removable 160-GB SATA 3.0 Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 3.5" Removable 250-GB SATA 3.0 Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 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 (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 2nd hard drive, 160-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 2nd hard drive, 250-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 2nd hard drive, 320-GB SATA 3.0-Gb/s Hard Drive (8MB Cache, 7200 RPM, NCQ, Smart IV)
 * 2nd hard drive, 500-GB SATA 3.0-Gb/s Hard Drive (16MB Cache, 7200 RPM, NCQ, Smart IV) (not supported on SFF models)

Diskette Drive

 * 1.44-MB Diskette Drive

Media Reader

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

Optical Drives

 * SATA DVD-ROM Drive
 * SATA CD-RW/DVD-ROM Combo Drive
 * SATA SuperMulti LightScribe DVD Writer Drive
 * HP SATA Blu-ray Writer

Media Card Reader

 * HP 16-in-1 3.5” Media Card Reader
 * HP 22-in-1 3.5” Media Card Reader
 * HP 22-in-1 3.5” Media Card Reader with 1394

Security

 * Integrated 1.2 TPM Embedded Security Chip
 * HP Desktop Security lock kit (lock and cable)
 * Security cable with Kensington lock
 * Optional HP ProtectTools security software suite
 * Optional USB Port Disable at factory (user configurable via BIOS)

NIC

 * Integrated Broadcom Gigabit Ethernet (integrated on system board)
 * Broadcom NetXtreme Gigabit Ethernet PCIe NIC Card
 * Broadcom NetXtreme Plus Gigabit Ethernet PCIe NIC Card

Wireless

 * Wireless A+G PCI Card (full height bracket) (does not support SFF models)
 * Wireless A+G PCI Card (low profile bracket) (does not support MT models)
 * HP 802.11 b/g/n Wireless PCIe x1 card (full height bracket) (does not support SFF models)
 * HP 802.11 b/g/n Wireless PCIe x1 card (low profile bracket) (does not support MT models)

Modem

 * 2006 Agere PCI 56K International SoftModem (full height) (does not support SFF models)
 * 2006 Agere PCI 56K International SoftModem (low profile) (does not support MT models)
 * LSI PCIe x1 Hi-Speed 56K International SoftModem

Graphics

 * Integrated ATI Radeon 3100 Graphics (with DirectX 10 technology)
 * NVIDIA GeForce 8400 GS 256MB SH PCIe x16 Graphics Card
 * ATI Radeon HD 2400 XT 256MB DH PCIe x16 Graphics Card
 * ATI Radeon HD 3470 256 SH PCIe x16 Graphics Card (does not support SFF models)
 * ATI Radeon HD 3650 (512MB DH) PCIe x16 Graphics Card
 * ATI Radeon HD 4550 Dual Head PCIe x16 Graphics Card
 * HP DisplayPort to VGA Adapter

Audio

 * Integrated High Definition audio with ADI1884 codec (all ports are stereo)
 * Microphone and Headphone front ports
 * Line-out and Line-In rear ports
 * Multistreaming capable
 * 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 available for MT models)
 * 1-GB Flash Module for Vista ReadyBoost (not supported on SFF models)

Operating System

 * Genuine Windows Vista Business 32-bit
 * Genuine Windows Vista Business 64-bit
 * Genuine Windows Vista Home Basic 32-bit
 * Genuine Windows Vista Ultimate 32-bit
 * Genuine Windows Vista Business 32 downgrade to Genuine Windows XP Professional
 * FreeDOS

Source
https://images10.newegg.com/UploadFilesForNewegg/itemintelligence/HP/12900_ca1401479644839.PDF