To determine the minimum and recommended system requirements needed to run versions of the Microsoft Windows Server 2003 operating system, see the following
Microsoft Windows Server 2003 R2 Standard Edition
| Component | Requirement |
| Computer and processor | PC with a 133-MHz processor required; 550-MHz or faster processor recommended; support for up to four processors on one server |
| Memory | 128 MB of RAM required; 256 MB or more recommended; 4 GB maximum |
| Hard disk | 1.2 GB for network install; 2.9 GB for CD install |
| Drive | CD-ROM or DVD-ROM drive |
| Display | VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended |
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Microsoft Windows Server 2003 R2 Enterprise Edition
| Component | Requirement |
| Computer and processor | 133-MHz processor required; 550-MHz recommended; up to eight processors supported on one server |
| Memory | 128 MB of RAM minimum required; 256 MB or more recommended; 64 GB maximum for x86-based computers; 1 TB maximum for x64 and ia64 computers |
| Hard disk | 1.2 GB for network install; 2.9 GB for CD install |
| Drive | CD-ROM or DVD-ROM drive |
| Display | VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended |
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Microsoft Windows Server 2003 R2 Datacenter Edition
| Component | Requirement |
| Computer and processor | 400 MHz processor required; 733 MHz processor recommended |
| Memory | 512 MB of RAM required; 1 GB of RAM recommended; 64 GB maximum for x86-based computers; 1 TB maximum for x64 and ia64 computers |
| Hard disk | 1.2 GB for network install; 2.9 GB for CD install |
| Other | Maximums: 64-way capable multiprocessor machine supported for 64-bit processors and 32-way capable multiprocessor machine supported for 32-bit processors |
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Microsoft Windows Server 2003 Web Edition
| Component | Requirement |
| Computer and processor | 133-MHz processor (550 MHz recommended) |
| Memory | 128 MB of RAM (256 MB recommended; 2 GB maximum) |
| Hard disk | 1.2 GB for network install; 2.9 GB for CD install |
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Windows Server 2003 Standard Edition
| Component | Requirement |
| Computer and processor | PC with a 133-MHz processor required; 550-MHz or faster processor recommended (Windows Server 2003 Standard Edition supports up to four processors on one server) |
| Memory | 128 MB of RAM required; 256 MB or more recommended; 4 GB maximum |
| Hard disk | 1.25 to 2 GB of available hard-disk space |
| Drive | CD-ROM or DVD-ROM drive |
| Display | VGA or hardware that supports console redirection required; Super VGA supporting 800 x 600 or higher-resolution monitor recommended |
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Microsoft Windows Server 2003 Enterprise Edition
| Component | Requirement |
| Computer and processor | 133-MHz or faster processor for x86-based PCs; 733-MHz for Itanium-based PCs; up to eight processors supported on either the 32-bit or the 64-bit version |
| Memory | 128 MB of RAM minimum required; maximum: 32 GB for x86-based PCs with the 32-bit version and 64 GB for Itanium-based PCs with the 64-bit version |
| Hard disk | 1.5 GB of available hard-disk space for x86-based PCs; 2 GB for Itanium-based PCs; additional space is required if installing over a network |
| Drive | CD-ROM or DVD-ROM drive |
| Display | VGA or hardware that supports console redirection required |
| Other | Windows Server 2003 Enterprise Edition, 64-bit version is compatible only with 64-bit Intel Itanium-based systems and cannot install on 32-bit systems |
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Microsoft Windows Server 2003 Datacenter Edition
| Component | Requirement |
| Computer and processor | Minimum: 400 MHz processor for x86-based computers or 733 MHz for Itanium-based computers; recommended: 733 MHz processor |
| Memory | 512 MB of RAM required; 1 GB of RAM recommended; 128 GB maximum for x86-based computers; 2 TB maximum for x64 and ia64 computers |
| Hard disk | 1.5 GB hard-disk space for x86-based computers; 2.0 GB for Itanium-based computers |
| Other | Maximum: 64-way capable multiprocessor machine supported |
* Important: Please consider the following:
- Windows Server 2003 Web Edition is not available as an R2 release.
- The Enterprise and Datacenter editions of Windows Server 2003 with Service Pack 1 for Itanium-based systems cannot be successfully installed on 32-bit systems.
- Windows Server 2003 may not use multiple processors with some Intel Pentium Pro or Pentium II processors. For more information, please see Knowledge Base article Q319091, Windows Server 2003 May Not Use Multiple Processors with Some Pentium Pro or Pentium II Processors.
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