ECS P55H-A2, User Manual, Page: 8 / 84

2
Introducing the Motherboard
Feature
• Accommodates Intel ® Lynnfield/Clarkdale processors
• Supports “Hyper-Threading” technology CPU
“Hyper-Threading” technology enables the operating system into thinking
it’s hooked up to two processors, allowing two threads to be run in parallel, both
on separate “logical” processors within the same physical processor.
The motherboard uses an LGA1156 type of socket that carries the following
features:
Processor
The Intel P55 Express Chipset is a single-chip with proven reliability and per-
formance.
Chipset
• Supports DDR3 1333/1066 DDR3 SDRAM with Dual-channel architec-
ture
• Accommodates four unbuffered DIMMs
• Up to 4 GB per DIMM with maximum memory size up to 16 GB
• Supports 1 Gb, 2 Gb and 4 Gb DDR3 DRAM technologies for x8 and x16
devices (It is not recommended to use 512 Mb DDR3 memory device on
this motherboard)
Memory
• Support Intel
®
Matrix Storage Technology, providing both AHCI and RAID
0, 1, 5 and 10 configuration.
• One x16 PCI Express Gen2 ports each supporting up to 8 GB/s direction
peak bandwidth
• Compliant with PCI Rev 2.3 interface at 33 MHz
• Integrated SATA 3.0 Gb/s Host Controller
• Fourteen USB 2.0 ports supported
• Serial Peripheral Interface (SPI) support
• Enhanced DMA Controller, interrupt controller, and timer functions
Audio (optional)
• 5.1 Channel High Definition Audio Codec
• Exceeds Microsoft Windows Logo Program (WLP) Requirements
• ADCs support 44.1K/48K/88.2K/96K/192KHz sample rate
• Power Support: Digital: 3.3V; Analog: 5.0V
• Compliant with Intel High Definition Audio Specification Rev. 1.0
• Exceeds Microsoft Windows Logo Program (WLP) Requirements
• Power Supply: Digital:3.3V Analog:5.0V
• Meets Microsoft WLK1.2 and Conforms to the Requirements of Win-
dows Hardware Quality Labs Testing (WHQL)