Chapter 1: Introduction Features of the S2QR6/S2QE6 CPU Up to four Pentium III Xeon 400-700 MHz processors at 100 MHz bus speed and Cascades 5V/12V processors Introduction Note: Please refer to the support section of our web site for a complete listing of supported processors.
(http://www.supermicro.com/TechSupport.htm) Memory One MEC (Memory Expansion Card) having 16 168-pin DIMM sockets to support up to 16 GB registered ECC DIMMs (no unbuffered or non-ECC memory) Chipset ServerWorks Enterprise ServerSet III HE chipset (see page 1-13 for details) Expansion Slots Two 64-bit, 66/33 MHz PCI slots Four 32-bit, 33 MHz PCI slots Two 32-bit, 33 MHz PCI slots (S2QR6 only) BIOS (Dual BIOS is optional) One (or two) 4 Mb Flash ROM BIOS chips APM 1.2, DMI 2.3, PCI 2.2 with PME support, ACPI 1.0, Plug and Play (PnP) 1.0A PC Health Monitoring Eight onboard voltage monitors for CPU core, chipset voltage, +2.5V, +3.3V, + 5V and + 12V Four-fan status monitor with firmware/software on/off control Environmental temperature monitor and control Chassis intrusion header Power-up mode control for recovery from AC power loss System overheat LED and control System resource alert Hardware BIOS virus protection Auto-switching voltage regulator for the CPU cores 1-11