HP Compaq dx6100

Processors

 * Intel Celeron D Processor 335 (2.8-GHz, 256K L2 cache, 533 MHz FSB) (NOTE: The Intel Celeron D processors for The HP dx6100 were available later)
 * Intel Pentium 4 Processor 520 with HT Technology (2.8-GHz, 1 MB L2 cache, 800 MHz FSB)
 * Intel Pentium 4 Processor 530 with HT Technology (3.0-GHz, 1 MB L2 cache, 800 MHz FSB)
 * Intel Pentium 4 Processor 540 with HT Technology (3.2-GHz, 1 MB L2 cache, 800 MHz FSB)
 * Intel Pentium 4 Processor 550 with HT Technology (3.4-GHz, 1 MB L2 cache, 800 MHz FSB) (not available for Microtowers)
 * Intel Pentium 4 Processor 560 with HT Technology (3.6-GHz, 1 MB L2 cache, 800 MHz FSB) (not available for Microtowers)

Chipset

 * Intel 915G

Operating System

 * Genuine Windows XP Professional
 * Genuine Windows XP Home Edition
 * SuSE Linux Personal 9.2 OEM (delivered on CDs with system, not preinstalled)

Hard Drive

 * 40-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 80-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 160-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 2nd hard drive, 40-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 2nd hard drive, 80-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 2nd hard drive, 120-GB Serial ATA SMART III Hard Drive (7200 rpm)
 * 2nd hard drive, 160-GB Serial ATA SMART III Hard Drive (7200 rpm)

Memory
NOTE: The Maximum Memory for this PC is 4GB of RAM
 * 256-MB DDR Synch Dram PC3200 (400-MHz) Non ECC (2 x 128)
 * 512-MB DDR Synch Dram PC3200 (400-MHz) Non ECC (1 x 512)
 * 512-MB DDR Synch Dram PC3200 (400-MHz) Non ECC (2 x 256)
 * 1-GB DDR Synch Dram PC3200 (400-MHz) Non ECC (2 x 512)
 * 1-GB DDR Synch Dram PC3200 (400-MHz) Non ECC (1x 1GB)
 * 2-GB DDR Synch Dram PC3200 (400-MHz) Non ECC (4 x 512)
 * 2-GB DDR Synch Dram PC3200 (400-MHz) Non ECC (2x 1GB)
 * 4-GB DDR Synch Dram PC3200 (400-MHz) Non ECC (4x 1GB)

Diskette and Zip Drives

 * Optional 1.44-MB Floppy Diskette Drive
 * Zip 250 for 3.5" drive bay (not supported on Microtowers)
 * Zip 250 for 5.25" drive bay (not supported on Slim Towers)

USB Drives

 * 256-MB USB HP Drive Key II (USB 2.0)

Optical Drives

 * 48X CD-ROM Drive
 * 52X CD-ROM Drive – APJ only
 * 16X/40X DVD-ROM
 * 48X/32X/48X CD-RW Drive
 * 48X/32X/48X/16X Combo CD-RW/DVD-ROM Drive
 * 16X DVD+R/RW Drive

Modem

 * Agere high speed 56K full height PCI Softmodem
 * Agere high speed 56K low profile PCI Softmodem

Audio

 * SoundMax Digital AC97 Integrated Audio with Internal Speaker

NIC

 * Integrated Broadcom NetXtreme Gigabit ethernet


 * Intel Pro 1000 MT Gigabit NIC full height PCI (not supported on Slim Towers)


 * Intel Pro 1000 MT Gigabit NIC low profile PCI (not supported on Microtowers)

Graphics

 * Integrated Intel Graphics Media Accelerator 900 graphics


 * DVI ADD2 adapter for Micro Tower (MT) chassis Normal Pinout (not supported on Slim Towers)
 * DVI ADD2 adapter Slim Tower (ST) chassis, Reversed Pinout (not supported on Microtowers
 * ATI Radeon X300SE PCIExpress 64MB DDR singlehead VGA with TV-out and full height bracket (not supported on Slim Towers)
 * ATI Radeon X300SE PCIExpress 64MB DDR singlehead VGA with TV-out and low profile bracket (not supported on Microtowers)
 * ATI Radeon X300SE PCIExpress 128MB DDR singlehead DVI with TV- out and full height bracket (not supported on Slim Towers)
 * ATI Radeon X300SE PCIExpress 128MB DDR singlehead DVI with TV- out and low profile bracket (not supported on Microtowers)

Security

 * Rear Port Control Bracket
 * Security cable with Kensington lock

Miscellaneous

 * HP FireWire / IEEE 1394 PCI Card full height (not supported on Slim Towers)
 * HP FireWire / IEEE 1394 PCI Card low profile (not supported on Microtowers)
 * Tower stand (not supported on Microtowers)

Source
https://www.gsd.eu/sales/img/datasheet/HP_dx6100_eng.pdf