ECS A790GXM-A, Manual, Page: 7 / 88

3
Introducing the Motherboard
Onboard LAN
This motherboard supports Ultra DMA bus mastering with transfer rates of
133/100/66/33 MB/s.
Expansion Options
The motherboard comes with the following expansion options:
• Two PCI Express x16 slots for Graphics Interface
• Two PCI Express x1 slots
• Two 32-bit PCI v2.3 compliant slots
• One IDE connector supporting up to two IDE devices
• One floppy disk drive interface
• Six 7-pin SATA connectors
Integrated I/O
The motherboard has a full set of I/O ports and connectors:
• Two PS/2 ports for mouse and keyboard
• One serial port
• One VGA port
• One HDMI port
• One optical SPDIFO port
• Six USB ports
• Two LAN ports
• Audio jacks for microphone, line-in and 6/8-channel High Definition
Audio output.
BIOS Firmware
Memory
• Supports DDR2 1066 (AM2+)/800/667/533/400 DDR2 SDRAM with
Dual-channel architecture
• Accommodates four unbuffered DIMMs
• Up to 8 GB per DIMM with maximum memory size up to 32 GB
Audio
1. Some hardware specifications and software items are subject to change
without prior notice.
2. Due to chipset limitation, we recommend that motherboard be operated in
the ambiance between 0 and 50°C.
•
All DACs support 192K/96K/48K/44.1KHz DAC sample rate
• High-quality analog differential CD input
• Software selectable 2.5V/3.75V VREFOUT
• Meets Microsoft WLP 3.08 audio requirements
• Direct Sound 3D TM compatible
•
Supports PCI Express TM 1.1
• Integrated 10/100/1000 transceiver
• Wake-on-LAN and remote wake-up support
*
The firmware can also be used to set parameters for different processor clock
speeds.
The motherboard uses AMI BIOS that enables users to configure many system
features including the following:
• Power management
• Wake-up alarms
• CPU parameters
• CPU and memory timing