Microsoft Windows XP minimum requirements

• PC with 300 megahertz (MHz) or higher processor clock speed recommended; 233-MHz minimum required; Intel Pentium / Celeron (TM) family, AMD K6/Athlon/Duron family, or compatible processor recommended
• 128 megabytes (MB) of RAM or higher recommended (64 MB minimum supported; may limit performance and some features)
• 1.5 gigabyte (GB) of available hard disk space
• Super VGA (800 × 600) or higher resolution video adapter and monitor
• CD-ROM or DVD drive
• Keyboard and Microsoft mouse or compatible pointing device

Factors to consider prior to making an upgrade decision

• HP is unable to guarantee how Windows XP will function on a PC not originally designed and/or tested for this new operating system. HP Pavilion and Compaq Presario PCs that shipped with Windows 95, Windows 98 or Windows 98SE pre-installed, were not tested with Windows XP.
• HP could not recommend upgrading where it could not guarantee a high level of compatibility for all basic hardware and software components of the PCs. PC device drivers (including graphics, BIOS, chipset, etc) for some PC components may simply not be available (now or in the future) as some parts manufacturers are no longer in business or have made business decisions to not provide updates for Windows XP.
• The addition (by the PC owner) of a wide variety of third-party software and peripherals to the system may complicate a Windows XP upgrade.
• Software pre-installed on the PC at purchase may require upgrades to the new XP-compatible version, if available, and at an additional cost. Contact the software company directly.
• HP and Compaq's warranty and support cover only the original pre-installed operating system and software. Technical support for the retail version of Windows XP is provided by Microsoft.

NOt sure what your exact model is but here's a rough guide to the spec

Compaq Presario 5000a Desktop PC - Product Specifications

QuickSpecs Compaq Presario 5000A SBC Internet PC Bundled with Compaq MV740 Multimedia Monitor with JBL Platinum Series Speakers June 1, 2000

5000a Compaq Affinity Program Model Presario 5000A SBC

Standard Features Dimensions & Weights

(H x W x D) • Micro-ATX Form Factor

• Unit: 17" x 8.9" x 17" (25.5 lbs.)

• Package: 24" x 14.95" x 23.6" (41 lbs.) Processor Intel (r) Celeron (tm) 566 MHz upgradable to Intel (r) Pentium(r) III 800 MHz System Bus Intel(r) Celeron TM : 66 MHz Front Side Bus (FSB) System Memory • 64MB Memory, Standard

• PC100 SDRAM DIMMs

• 2 DIMM slots (256MB total memory maximum using 128MB DIMMs) Hard Drive 10.0 GB UltraDMA hard drive upgradable to 60 GB

• ATA/66 UDMA support (2 IDE connectors with 2 channels each) CD/DVD-ROM Drive • 40x CD-ROM drive

• 12x and 16x DVD-ROM drive (option)

• 8x CD-RW drive (option)

• DVD/CD-RW Combo drive (4x4x4x24 ) (option) Integrated Communications • 56K ITU V.90 Modem

• 6.0 Mb Max Digital DSL Modem Cache • 128KB integrated L1 Cache

• 128KB L2 Pipeline Burst Cache on Intel Celeron (tm)

• 256KB integrated L2 Pipeline Burst Cache on Intel Pentium III Graphics Direct AGP 3D graphics (up to 11MB shared memory) Audio Integrated ESS Allegro Compaq Multimedia • Compaq DVD Player/Navigator (option)

• Microsoft DirectShow

• Audio CD Player

• Video Player (AVI, MPEG2 & others) Power Supply Steady-state 145 watts Diskette Drive 3.5" 1.44 MB diskette drive Mouse Internet scroll mouse Expansion Slots (Four total) • One PCI slot with modem

• Three PCI slots open for expansion Drive Bays (Five total) • 3.5" external for 1.44 MB diskette drive

• 3.5" external open for expansion

• 3.5" internal for Hard Drive

• 5.25" external for CD/DVD ROM Drive

• 5.25" external open for expansion I/O Interfaces • Four USB ports (2 front, 2 back)

• Serial RS-232C compatible, DB9 connector (16550)

• Parallel EPP/ECP standard centronics-compatible interface (DB25 connector)

• Joystick/MIDI/Gamepad compatible game port

• Two RJ-11 phone jacks (1 input, 1 output)

• Audio ports (line-in, line-out and microphone-in)

• 2 PS2 ports (for mouse and keyboards)

• Monitor connection (VGA) Networking (Option) 10/100 10baseT PCI Ethernet Card Home Phoneline Networking (Option) • Diamond PCI HomeFree 10/1 Mbps Home Networking Card

• Uses standard phonelines

• Home Phoneline Network Alliance Certified (HomePNA) Internet Access Quick and easy Internet access from SBC High Speed DSL with Prodigy. Wireless (option) Seamless internet connectivity in and around the home or office.

• Wireless home networking with internet sharing, file sharing, printer sharing, head to head gaming, and file sycronization

• A one-plug solution for both the USB Device and PC Card

• No new wires required MyStyle Color Accent Kit (option) • Personalize your PC by adding an optional color kit that reflects your style.

• Amethyst
• Emerald Green
• Jade Green
• Ruby Red
• Sapphire Blue

MyStyle Color Accent Kit includes: Front color panel (2 pieces), Internet Keyboard button plate and JBL Platinum Series speaker grills (2). Compaq USB Internet Keyboard One-touch buttons take you directly to your favorite Internet activities.

Instant Internet - Your personalized start page that delivers daily news and information.

Instant e-Mail - One-touch access for sending and receiving e-mail.

My Presario - Learn how to get more out of your PC and the Internet.

Entertainment - The inside entertainment scoop featuring music downloads, video, Webcasts, news and reviews.

Activity - Discover Cam, Photo and Music activities designed exclusively for Presario users. Plus you'll find step-by-step instructions that make online fun easy.

Search - Search the Web for the latest news, information, music and much more, all with the touch of a button.

Retail Central eCommerce - Go shopping at your favorite computer store and a variety of popular retail sites at the touch of a button.

My Program - Personalize this one-touch button to launch your favorite Web site, application or document.

Help - Push this button when you need technical advice or help.

Navigation Zone - Ergonomically designed for comfort, new directional keys enhance gaming and Web navigation.

Multimedia Zone - One-touch CD controls: Play/pause, previous track & next track, volume up/down, stop, eject, mute and sleep Compatibility/Compliance • Advanced Configuration and Power Interface (ACPI)

• Plug-and-Play Compaq Extra Mile Service and Support The best approach to customer service, delivered just the way you

want it.

• Warranty:1 year on-site, 1 year carry in-labor and 1 year parts. Compaq Remote Support Allows a Compaq technician to connect to your PC and resolve technical difficulties. Compaq Service Connection Free PC tune-ups performed automatically over the Web. SOFTWARE Preinstalled Software

• McAfee Virus Scan

Microsoft(r) Money 2000

Microsoft(r) Windows(r) 98 Second Edition

Microsoft(r) Windows(r) Media Player

Microsoft(r) Works 2000

• RioPort Audio Manager 11

• Selective QuickRestore

Internet/Online

Microsoft(r) Encarta(r) Online Deluxe (1 year subscription)

Microsoft(r) Internet Explorer

Software on CD

• My Presario - Learning More CD

• Recovery CD