User`s manual

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X7DWT/X7DWT-INF User's Manual

Motherboard Features

CPU

• Dual Intel

64-bit Xeon LGA 771 Quad-Core/Dual-Core processors at a front

side bus speed of 1.600 GHz, 1.333 GHz or 1.066 GHz

Memory

• Eight 240-pin DIMM sockets with support up to 64 GB DDR2 FBD (Fully Buff-

ered) ECC 800/667/533 Memory (See Section 2-3 in Chapter 2 for DIMM Slot

Population.)

Chipset

• Intel 5400 chipset, including: the 5400 Memory Control Hub (MCH), and the

Enterprise South Bridge 2 (ESB2)

Expansion Slots

• One PCI-Express (Gen. 2.0) slot (one PCI-E slot x16: JPCIE1)

BIOS

• 8 Mb Phoenix

Flash ROM

• DMI 2.3, PCI 2.2, ACPI 1.0/2.0, Plug and Play (PnP), USB Keyboard Support,

SMBIOS 2.3

PC Health Monitoring

• Onboard voltage monitors for CPU cores, chipset voltage (+1.5V), memory

voltage, +3.3V, +5V, +12V, −12V, +3.3V Standby, +5V standby, HT and VBAT

• Fan status monitor with ﬁ rmware control

• CPU/chassis environment monitoring

• Platform Environment Control Interface (PECI) ready

• CPU fan auto-off in sleep mode

• CPU slow-down on temperature overheat

• CPU thermal trip support for processor protection, power LED

• Power-up mode control for recovery from AC power loss

• Auto-switching voltage regulator for CPU cores

• System overheat/Fan Fail LED Indicator and control

• Chassis intrusion detection

• System resource alert via Supero Doctor III

• I

C temperature sensing logic

• Thermal Monitor 2 (TM) support