AMD 900 chipset series
| CPU supported |
Opteron, FX, Phenom, Athlon (X2, X3, X4), Sempron |
|---|---|
| Socket supported |
Socket F+/F, G34, C32 Socket AM3, AM3+ |
| Southbridge(s) | SB950, SB920 |
| Desktop / mobile chipsets | |
| Enthusiast segment | 990FX |
| Performance segment | 990X |
| Mainstream segment | 970, 980G |
| Miscellaneous | |
| Release date(s) | June 1, 2011 |
| IGP Direct3D support | 10.1 (980G) |
| Predecessor | AMD 800 chipset series |
The AMD 9-Series Chipset is a set of chipsets developed by AMD, released in 2011. The chipset series uses the same silicon as AMD's previous 8-Series chipset however it is targeted at the socket AM3+ platform, including the Bulldozer line, while the 800 series is targeted at the socket AM3 platform. This allows consumers to easily identify the platform through the chipset name. In support of AM3+ CPUs, AMD has validated the 9-Series chipset for use with HyperTransport 3.1 (up to 6.4GT/s). They also worked with NVIDIA to bring SLI support to this chipset series.[1] AMD OverDrive is supported for simplified overclocking.
Lineup
Common features of all chipsets in the 9xx series:[2]
- Supports AM3+ and AM3 processors
- PCI Express 2.0
- IOMMU 1.26
- SATA 6 Gbit/s with Trim support
- Up to 14 USB 2.0
990FX
- Codenamed RD990
- Four physical PCIe 2.0 ×16 slots @ x8 electrical which can be combined to create two PCIe 2.0×16 slots @ x16 electrical, one PCIe 2.0×4 slot and two PCIe 2.0×1 slots, the chipset provides a total of 38 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
- HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0
- ATI CrossFireX supporting up to four graphics cards
- 19.6 Watt TDP
- Southbridge: SB950
- Enthusiast discrete multi-graphics segment
980X
- Codenamed RD980
- One physical PCIe 2.0×16 slot or two physical PCIe 2.0×16 slots @ ×8, one PCIe 2.0×4 slot and two PCIe 2.0×1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
- HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0
- Support for up to two graphics cards
- 14 Watt TDP
- Southbridge: SB950
980G
(Identical to 880G)
- Codenamed RS880
- Single AMD processor configuration
- One physical PCIe 2.0 ×16 slot, one PCIe 2.0 ×4 slot and two PCIe 2.0 ×1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
- Integrated graphics: Radeon HD 4250
- Side-port memory as local framebuffer, supporting DDR3 modules up to DDR3-1333.
- ATI PowerPlay 7.0 technology
- HyperTransport 3.0 and PCI Express 2.0
- ATI CrossFire
AMD 970
- Codenamed RX980
- One physical PCIe 2.0 ×16 slot, one PCIe 2.0 ×4 slot and two PCIe 2.0 ×1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge
- HyperTransport 3.0 up to 4800 MT/s and PCI Express 2.0
- 13.6 Watt TDP
- Southbridge: SB950/SB920
Southbridge
The SB950 is the companion southbridge that provides I/O support. It provides the following additional capabilities:
- RAID 0, 1, 10, 5 support
Southbridge issues (SB9x0)
- Linux platform:
- HPET operation with MSI causes LPC DMA corruption on devices using LPC DMA (floppy, parallel port, serial port in FIR mode) because MSI requests are misinterpreted as DMA cycles by the broken LPC controller[3]
- Enabling multiple MSI vectors for the SATA controller when three or more SATA ports are used results in loss of interrupts and system hang.