1-6
X8DTU/X8DTU-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) links with a total of up to 51.2 GT/s
Data Transfer Rate (6.4 GT/s per direction)
Memory
Twelve 240-pin DIMM sockets support up to 96 GB of DDR3 Registered ECC
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Memory (RDIMM modules are supported. See Section 2-4 in Chapter 2 for
DIMM Slot Population.)
Chipset
Intel 5520 chipset, including: the 5520 (North Bridge) and the ICH10R (South
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Bridge).
Expansion Slots
One PCI-E 2.0 x16 slot (J2: SXB1)
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One PCI-E 2.0 x8 slot (J1: SXB2)
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One PCI-E 2.0 x8 in x4 slot (J3: SXB3)
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BIOS
32 Mb AMI SPI Flash ROM
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PCI 2.3, ACPI 1.0/2.0/3.0, Plug and Play (PnP), DMI 2.3, USB Keyboard support,
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Hardware BIOS Monitoring, and SMBIOS 2.3
PC Health Monitoring
Onboard voltage monitors for CPU1 Vcore, CPU2 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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