1-6
X7DWN+ User's Manual
Motherboard Features
CPU
• Dual
Intel
®
64-bit LGA 771 Quad-Core/Dual-Core Xeon 5400 Series/5300LV
Series/5200 Series/5100LV Series processors at a front side bus speed of up
to 1.6 GHz
Memory
• 16 240-pin DIMM sockets support up to 128 GB DDR2 FBD (Fully Buffered)
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
• Two PCI-E2 x8 slots (Slot5/slot6) (Gen. 2.0)
• One PCI-E x8 slot (Slot3)
• One PCI-E x4 slot (Slot4)
• Two 64-bit PCI-X 133/100MHz slots (Slot1/Slot2)
• One PCI-U (Universal) slot (Slot0) (Gen. 2.0)
• SIMSO Slot (J16)
BIOS
• 8 Mb Phoenix
®
Flash ROM
• PCI 2.2, ACPI 1.0, Plug and Play (PnP), USB Keyboard support and SMBIOS
2.3
PC Health Monitoring
• Onboard voltage monitors for CPU cores, chipset voltage, Memory voltage,
+1.8V, +3.3V, +3.3V Standby, +5V, +5V Standby,
+
12V,
−
12V and Vbatt
• Fan status monitor with
fi
rmware control
• CPU/chassis temperature monitors
• 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
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