User Manual

Chapter 1
2
A990FXM-A USER MANUAL
CPU
Specifications
• NB: AMD 990FX SB: SB950Chipset
• Dual-channel DDR3 memory architecture
• 4 x 240-pin DDR3 DIMM sockets support up to 128 GB
• Supports DDR3 DDR3 2133 (OC)* /1866/1600/1333SDRAM
Memory
• 3 x PCI Express x16 Gen2 slot
• 2 x PCI Express x1 Gen2 slot
• 1 x PCI slot
• Supported by AMD SB950 Express Chipset
-6 x Serial ATA 6.0 Gb/s Host Controllers
-Supports RAID 0, 1, 5 and 10
Expansion
Slots
Storage
• 1 x PS/2 keyboard and mouse combo port
• 6 x USB 2.0 ports
• 2 x USB 3.0 blue ports
• 2 x RJ45 LAN ports
• 1 x Audio port (Line in, microphone in, line out, and optical
SPDIF out)
Rear Panel I/O
LAN • Dual Realtek 8111E Giga Lan
• Socket AM3+ for AMD Phenom
TM
and later desktop processors
• Supports HyperTransport
TM
(HT) 3.0 interface speeds
• Supports CPU up to 140W TDP
Note: Please go to ECS website for the latest CPU support list.
Note: * Due to the limitation of AMD CPU spec, please refer to Memory
QVL for more information.
• 1 x 24-pin ATX Power Supply connector
• 1 x 8-pin ATX12V connector
• 6 x Serial ATA 6Gb/s connectors
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• 1 x Front panel header
• 1 x Chassis Intrusion Detect header
• 1 x SPDIF out header
• 1 x Front panel audio header
• 1 x Buzzer
• 1 x CLR_COMS header
• 1 x 4-pin CPU_FAN connector
• 1 x 3-pin SYS_FAN connector
• 1 x 3-pin PWR_FAN connector
Internal I/O
Connectors &
Headers
• ALC892 8-Channel
- 8 Channel High Definiton Audio Codec
- Compliant with HD audio specification
Audio