1-6
X8DAH+/X8DAH+-F User's Manual
Motherboard Features
CPU
Two Intel
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®
5500 Series (LGA 1366) processors. Each processor supports two
full-width Intel QuickPath Interconnect (QPI) @6.4 GT/s with a total of up to 51.2
GB/s Data Transfer Rate (6.4 GB/s per direction)
Memory
18 240-pin DIMM sockets support up to 144 GB of DDR3 Reg. ECC
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1333/1066/800 MHz Memory modules (See Section 2-4 in Chapter 2 for DIMM
Slot Population.)
Chipset
Intel 5520 chipset, including: two 5520 I/O Hubs (North Bridge)
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One ICH10R (South Bridge)
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Expansion Slots
Three PCI-E 2.0 x8 slots (Slot 1/Slot 3/Slot7)
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Two PCI-E 2.0 x16 slots (Slot 2/Slot 6)
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One PCI-E 2.0 x4 (in x8) slots (Slot 5)
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One PCI-E 2.0 x8 (in x16) slots (Slot 4)
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BIOS
32 Mb AMI SPI Flash ROM
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PCI 2.2, ACPI 1.0/2.0/3.0, Plug and Play (PnP), DMI 2.3, USB Keyboard sup-
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port, and SMBIOS 2.3
PC Health Monitoring
Onboard voltage monitors for CPU0 Vcore, CPU1 Vcore, 1.5V, 5V, 5VSB, 12V,
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-12V, 3.3Vcc, 3.3VSB, VBAT and Vtt
Fan status monitor with fi rmware control
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CPU/chassis temperature monitors
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Platform Environment Control Interface (PECI) ready
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Thermal Monitor 2 (TM2) support
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CPU fan auto-off in sleep mode
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CPU slow-down on temperature overheat
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Pulse Width Modulation (PWM) Fan Control
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CPU thermal trip support for processor protection, power LED
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Power-up mode control for recovery from AC power loss
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Auto-switching voltage regulator for CPU cores
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System overheat/Fan Fail LED Indicator and control
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Chassis intrusion detection
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