HP recommends Windows VistaHP recommends Windows VistaHP recommends Windows VistaHP recommends Windows Vista®®®® BusinessBusinessBusinessBusiness1. Monitor (sold separately) 8. Rear IO: 7 USB 2.0, 1 standard serial port, 1 optional serialport, 1 parallel port, PS/2 keyboard, PS/2 mouse, RJ-45,External SATA, audio line in, audio line out, andmicrophone in.2. Mouse3. Keyboard4. Front IO: 2 USB 2.0, IEEE-1394 (requires optional PCI cardto enable), headphone and microphone9. 3 USB 2.0 internal port (1 type A receptacle, 2 headers)5. One 3.5" external bay for optional diskette drive or other3.5" device10. R475 watt (continuous) 80 PLUS efficient power supply.6. Three 5.25" external bays (3rd external is not full depth),and two 3.5" internal bays11. Intel® Core™ 2 Duo, Core 2 Quad, Core 2 Extremeprocessor or Intel Pentium® Dual Core processor; allprocessors are EM64T capable7. 3 PCI slots, 1 PCI Express x1 slot, 1 PCI Express x8 slot (withx4 functionality), 2 PCI Express x16 slots (one exclusive forgraphics)Form FactorForm FactorForm FactorForm Factor Convertible MinitowerCompatible OperatingCompatible OperatingCompatible OperatingCompatible OperatingSystemsSystemsSystemsSystemsGenuine Windows Vista® Business 32-bitGenuine Windows Vista® Business 64-bitGenuine Windows Vista 32-bit downgrade to Genuine Microsoft® Windows XP® Professional 32-bitGenuine Windows Vista 64-bit downgrade to Genuine Microsoft Windows XP Professional 64-bitGenuine Windows Vista® Home Basic 32-bitHP Linux Installer Kit for Linux (includes drivers for both 32-bit & 64-bit OS versions of Red Hat EnterpriseLinux WS4 and WS5 – see: http://www.hp.com/workstations/software/linux)For detailed OS/hardware support information for Linux, see:http://www.hp.com/support/linux_hardware_matrix.Novell SLED 11 LinuxQuickSpecs HP xw4600 WorkstationHP xw4600 WorkstationHP xw4600 WorkstationHP xw4600 WorkstationOverviewDA - 12792 Worldwide — Version 25 — September 15, 2009 Page 1