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X6DH3-G2/X6DHi-G2 User's Manual
Motherboard Features
CPU
• Single or dual Intel
®
Xeon
TM
EM64T processors at 800 MHz front side
(system) bus speed with support of Hyper-Threading (HT), EM64T and
Enhanced Intel SpeedStep (EIST)
Using the EM64T Feature
• Install a 64-bit OS (Windows XP Professional x64 Ed, Server 2003x64 Ed.)
• Install a 64-bit OS (Windows XP Professional x64 Ed, Server 2003x64 Ed.)
• Install the 64-bit drivers for all MB components, devices and add-on cards
Using the Hyper-Threading (HT) Technology
• Install an OS that supports HT, including Windows XP/2003 Server and Linux
2.4x. (Under Linux, use the HT compiler to compile the code. For other operating
systems, be sure to disable the HT feature in the BIOS.)
• Enable the HT feature in the BIOS (under "Advanced" Setting) before install
ing a supported OS. (*Note: visit www.Intel.com for CPU support and driver
updates.)
Memory
• Eight 240-pin DIMM sockets supporting up to 16 GB Registered ECC, dual
channel, DDR II 400 (PC3200) SDRAM
Chipset
• Intel E7520 chipset
Expansion Slots
• Two x8 PCI-E slots (*one with SEPC-Supermicro Enhanced Power Connector)
• Three 64-bit PCI-X (3.3V) slots (*One PCI-X-133 MHz slot, One PCI-X-100
MHz/ZCR slot-the green slot, One PCI-X-100 MHz slot)
• One 32-bit (5V) 33MHz PCI
BIOS
• 8 Mb Phoenix
®
Flash ROM
• APM 1.2, DMI 2.3, PCI 2.2, ACPI 1.0, Plug and Play (PnP)
PC Health Monitoring
• Onboard voltage monitors for CPU cores, chipset voltage, 3.3V, +5V, +12V, −12V
and +5V standby
• Fan status monitor with fi rmware control
• CPU/chassis temperature monitors
• Environmental temperature monitor and control
• CPU fan auto-off in sleep mode
• CPU slow-down on temperature overheat
• CPU thermal trip support for processor protection, +5V standby alert LED
• Power-up mode control for recovery from AC power loss
• Auto-switching voltage regulator for CPU core