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GA-990FXA-UD3 (rev. 1.2)
GA-990FXA-UD5 (rev. 1.x)
CPU
AM3+ Socket:
  1. Support for AMD AM3+ FX processors
  2. Support for AMD AM3 Phenom™ II processors / AMD Athlon™ II processors
(Please refer "CPU Support List" for more information.)
AM3+ Socket:
  1. Support for AMD AM3+ FX processors
  2. Support for AMD AM3 Phenom™ II processors / AMD Athlon™ II processors
(Please refer "CPU Support List" for more information.)
Socket
Socket AM3+
Socket AM3+
Chipset
  1. North Bridge: AMD 990FX
  2. South Bridge: AMD SB950
  1. North Bridge: AMD 990FX
  2. South Bridge: AMD SB950
Memory
  1. 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory (Note 1)
  2. Dual channel memory architecture
  3. Support for DDR3 2000(O.C.)/1866/1600/1333/1066 MHz memory modules (Note 2)
(Please refer "Memory Support List" for more information.)
  1. 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory (Note 1)
  2. Dual channel memory architecture
  3. Support for DDR3 2000(O.C.)/1866/1600/1333/1066 MHz memory modules (Note 2)
(Please refer "Memory Support List" for more information.)
Audio
  1. Realtek ALC889 codec
  2. High Definition Audio
  3. 2/4/5.1/7.1-channel
  4. Support for Dolby Home Theater
  5. Support for S/PDIF Out
  1. Realtek ALC889 codec
  2. High Definition Audio
  3. 2/4/5.1/7.1-channel
  4. Support for Dolby Home Theater
  5. Support for S/PDIF Out
LAN
  1. 1 x Realtek RTL8111E chip (10/100/1000 Mbit)
  1. 1 x Realtek RTL8111E chip (10/100/1000 Mbit)
Expansion Slots
  1. 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) (Note 3)
  2. 2 x PCI Express x16 slots, running at x4 (PCIEX4_1, PCIEX4_2)
  3. 2 x PCI Express x1 slots
    4. (All PCI Express slots conform to the PCI Express 2.0 standard.)
  4. 1 x PCI slot
  1. 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) (Note 3)
  2. 1 x PCI Express x16 slots, running at x8 (PCIEX8) (Note 4)
  3. 2 x PCI Express x16 slots, running at x4 (PCIEX4_1, PCIEX4_2)
  4. 1 x PCI Express x1 slot
    5. (All PCI Express slots conform to the PCI Express 2.0 standard.)
  5. 1 x PCI slot
Multi-Graphics Technology
  1. Support for 2-Way AMD CrossFireX™ and NVIDIA SLI™ technology (PCIEX16_1, PCIEX16_2)
  1. Support for 2-Way/3-Way AMD CrossFireX™ and NVIDIA SLI™ technology
Storage Interface
South Bridge:
  1. 6 x SATA 6Gb/s connectors supporting up to 6 SATA 6Gb/s devices
  2. Support for SATA RAID 0, RAID 1, RAID5, RAID 10 and JBOD
JMicron JMB363 chip:
  1. 2 x eSATA 3Gb/s connectors (eSATA/USB Combo) on the back panel supporting up to 2 SATA 3Gb/s devices
  2. Support for RAID 0, RAID 1, and JBOD
South Bridge:
  1. 6 x SATA 6Gb/s connectors (SATA3_0~SATA3_5) supporting up to 6 SATA 6Gb/s devices
  2. Support for SATA RAID 0, RAID 1, RAID5, RAID 10 and JBOD
2 x Marvell 88SE9172 chips:
  1. 2 x SATA 6Gb/s connectors (GSATA3_6, GSATA3_7) supporting up to 2 SATA 6Gb/s devices
  2. 2 x eSATA 6Gb/s connectors on the back panel supporting up to 2 SATA 6Gb/s devices
  3. Support for RAID 0 and RAID 1
USB
South Bridge:
  1. Up to 14 USB 2.0/1.1 ports (8 ports on the back panel, including 2 eSATA/USB Combo connectors, 6 ports available through the internal USB headers)
2 x Etron EJ168 chips:
  1. Up to 4 USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through the internal USB header)
South Bridge:
  1. Up to 14 USB 2.0/1.1 ports (8 ports on the back panel, 6 ports available through the internal USB headers)
2 x Etron EJ168 chips:
  1. Up to 4 USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through the internal USB header)
Internal I/O Connectors
  1. 1 x 24-pin ATX main power connector
  2. 1 x 8-pin ATX 12V power connector
  3. 6 x SATA 6Gb/s connectors
  4. 1 x CPU fan header
  5. 2 x system fan headers
  6. 1 x power fan header
  7. 1 x front panel header
  8. 1 x front panel audio header
  9. 1 x S/PDIF Out header
  10. 3 x USB 2.0/1.1 headers
  11. 1 x USB 3.0/2.0 header
  12. 1 x Trusted Platform Module (TPM) header
  13. 1 x serial port header
  14. 1 x clearing CMOS jumper
  1. 1 x 24-pin ATX main power connector
  2. 1 x 8-pin ATX 12V power connector
  3. 8 x SATA 6Gb/s connectors
  4. 1 x CPU fan header
  5. 2 x system fan headers
  6. 1 x power fan header
  7. 1 x front panel header
  8. 1 x front panel audio header
  9. 1 x S/PDIF Out header
  10. 3 x USB 2.0/1.1 headers
  11. 1 x USB 3.0/2.0 header
  12. 1 x IEEE 1394a header
  13. 1 x serial port header
  14. 1 x clearing CMOS jumper
  15. 1 x Trusted Platform Module (TPM) header
Back Panel Connectors
  1. 1 x PS/2 keyboard/mouse port
  2. 1 x optical S/PDIF Out connector
  3. 6 x USB 2.0/1.1 ports
  4. 2 x USB 3.0/2.0 ports
  5. 2 x IEEE 1394 ports
  6. 2 x eSATA/USB Combo connectors
  7. 1 x RJ-45 port
  8. 6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side Speaker Out/Line In/Line Out/Microphone)
  1. 1 x PS/2 keyboard/mouse port
  2. 1 x optical S/PDIF Out connector
  3. 1 x IEEE 1394 port
  4. 8 x USB 2.0/1.1 ports
  5. 2 x USB 3.0/2.0 ports
  6. 2 x eSATA 6Gb/s connector
  7. 1 x RJ-45 port
  8. 6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side Speaker Out/Line In/Line Out/Microphone)
Form Factor
  1. ATX Form Factor; 30.5cm x 24.4cm
  1. ATX Form Factor; 30.5cm x 24.4cm
Note
(Note 1) Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB.
(Note 2) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot; if you are installing two graphics cards, it is recommended that you install them in the PCIEX16_1 and PCIEX16_2 slots.
(Note 3) The PCIEX8 slot shares bandwidth with the PCIEX16_1 slot. When PCIEX8 is populated with a PCI Express graphics card, the PCIEX16_1 slot will operate at up to x8 mode.
(Note 1) Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB.
(Note 2) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot; if you are installing two graphics cards, it is recommended that you install them in the PCIEX16_1 and PCIEX16_2 slots.
(Note 3) The PCIEX8 slot shares bandwidth with the PCIEX16_1 slot. When PCIEX8 is populated with a PCI Express graphics card, the PCIEX16_1 slot will operate at up to x8 mode.
(Note 4) Whether the CPU/system fan speed control function is supported will depend on the CPU/ system cooler you install.
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