GIGABYTE GA-M55S-S3 Rev 2.0 BIOS FG

1. Fix: Some of 1000 GB (1TB) HDDs will be detected size error
2. Update CPU ID (Support AM2 Phenom CPU)


CPU

Socket AM2 for AMD Athlon 64 FX / Athlon 64 X2 Dual-Core / Athlon 64 / Sempron processor
Chipset

1. NVIDIA nForce 550
2. Super I/O: ITE IT8716 chip
3. Integrated Peripherals:
1. T.I IEEE1394 controller
2. Marvel 88E1116 Gigabit Ethernet Controller
3. Realtek ALC883 Audio Codec

Memory

1. 4 DDR2 DIMM memory slots (supports up to 16GB memory)(Note 1)
2. Supports dual channel DDR2 800/667/533/400 DIMMs
3. Supports 1.8V DDR2 DIMMs
4. Support ECC Memory

(Note 1) Due to the limitation of Windows 32-bit operating system, when more than 4GB of physical memory is installed, the actual memory available for the operating system will be less than 4GB; Windows 64-bit operating system doesn't have such limitation.
Internal I/O Connectors

1. 1 24-pin ATX power connector
2. 1 4-pin ATX 12V power connector
3. 1 floppy connector
4. 1 IDE connector
5. 4 SATA 3Gb/s connectors
6. 1 CPU fan connector
7. 1 system fan connector
8. 1 power fan connector
9. 1 front panel connector
10. 1 front audio connector
11. 1 CD In connector
12. 1 SPDIF In connector
13. 3 USB 2.0/1.1 connectors for additional 6 USB 2.0/1.1 ports by cables
14. 2 IEEE1394a connectors for additional 2 port by cables
15. 1 Power LED connector
16. 1 Chassis Intrusion connector

Expansion Slots

1. 1 PCI Express x 16 slot
2. 4 PCI Express x 1 slots
3. 2 PCI slots

Back Panel Connectors

1. 1 PS/2 keyboard port
2. 1 PS/2 mouse port
3. 1 parallel port
4. 1 SPDIF out port (coaxial)
5. 1 SPDIF out port (optical)
6. 1 serial port (COMA)
7. 4 USB 2.0/1.1 ports
8. 1 IEEE1394 port
9. 1 RJ-45 port
10. 6 audio jacks (Line In / Line Out / MIC In / Surround Speaker Out (Rear Speaker Out) / Center/Subwoofer Speaker Out / Side Speaker Out)