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**B Grade** 990FX Extreme4 AMD 990FX (Socket AM3+) DDR3 ATX Motherboard
B Grade items may have been used, have damaged packaging, missing accessories or a combination of these.
Some items may have scuff marks or slight scratches but should otherwise be an operable product.
More Precise, More Efficient
By adopting digital pulse-width modulation (PWM), the ASRock motherboard can provide CPU Vcore voltage more efficiently and smoothly. Compared to analog PWM, digital PWM can optimize the CPU power solution and provide a proper and stable Vcore for the processor.
The unique combo cooler retention module greatly improves heat dissipation and is backward compatible with AMD previous AM3/AM2+ coolers.
Switchable cooling fan provides extreme overclocker or gamer an upgrade opportunity, it can greatly improve the heat dissipation on the heatpipe.
THX TruStudio is specially designed to bring the same great audio experience found in live performances, films, and recording studios to the PC.
CrossFireX is a brand name for ATI™ Technologies multi-GPU solution. The technology allows a pair of graphics cards to be used in a single computer to improve graphics performance.
SLI is a brand name for NVIDIA® multi-GPU solution. The technology allows a pair of graphics cards to be used in a single computer to improve graphics performance.
Even when the system is powered off (in ACPI S5 mode), On/Off Play Technology still allows users to enjoy the great audio experience from the portable audio devices through the PC speaker.
Turbo UCC technology provides you an all-in-one solution to unlock the hidden cpu cores in the CPU, get the amazing system performance boost by auto-overclocking, and running the system in a certainly lower power consumption level as well. When you press "X" when switch on the computer, the system will automatically reboot itself, after that, the system will execute the Turbo UCC function. Enabling Turbo UCC, it will automatically help you to unlock the extra CPU core to enjoy an instant performance boost, and the system performance will boost up by overclocking CPU frequency, memory frequency and all related voltage settings! Different from normal high-energy consumption for overclocking or system upgrading process, ASRock Turbo UCC can allow an energy-saving overclocking or system upgrade computing operation!
- Support for Socket AM3+ processors
- Support for Socket AM3 processors: AMD Phenom™ II X6 / X4 / X3 / X2 (except 920 / 940) / Athlon II X4 / X3 / X2 / Sempron processors
- Supports 8-Core CPU
- Supports UCC feature (Unlock CPU Core)
- Digi Power Design
- Advanced V8 + 2 Power Phase Design
- Supports CPU up to 140W
- Supports AMD's Cool 'n' Quiet Technology
- FSB 2600 MHz (5.2 GT/s)
- Supports Untied Overclocking Technology
- Supports Hyper-Transport 3.0 (HT 3.0) Technology
- Northbridge: AMD 990FX
- Southbridge: AMD SB950
- Dual Channel DDR3 memory technology
- 4 x DDR3 DIMM slots
- Supports DDR3 2100(OC)/1866*/1800*/1600*/1333/1066/800 non-ECC, un-buffered memory
- Max. capacity of system memory: 32GB
- 32Mb AMI UEFI Legal BIOS with GUI support
- Supports "Plug and Play"
- ACPI 1.1 Compliance Wake Up Events
- Supports jumperfree
- SMBIOS 2.3.1 Support
- CPU, VCCM, NB, SB Voltage Multi-adjustment
- 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)
- Premium Blu-ray audio support
- Supports THX TruStudio™
- PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Broadcom BCM57781
- Supports Wake-On-LAN
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE
- 3 x PCI Express 2.0 x16 slots (PCIE2/PCIE4 @ x16 mode; PCIE5 @ x4 mode)
- 2 x PCI Express 2.0 x1 slots
- 2 x PCI slots
- Supports AMD Quad CrossFireX™, 3-Way CrossFireX™ and CrossFireX™
- Supports NVIDIA® Quad SLI™ and SLI™
- 6 x SATA3 6.0 Gb/s connectors by AMD SB950, support RAID (RAID 0, RAID 1, RAID 0+1, JBOD and RAID 5), NCQ, AHCI and "Hot Plug" functions
- 2 x SATA3 6.0 Gb/s connectors by Marvell SE9120, support NCQ, AHCI and "Hot Plug" functions (SATA3_8 connector is shared with eSATA3 port)
- 2 x Rear USB 3.0 ports by Etron EJ168A, support USB 1.0/2.0/3.0 up to 5Gb/s
- 1 x Front USB 3.0 header (supports 2 USB 3.0 ports) by Etron EJ168A, supports USB 1.0/2.0/3.0 up to 5Gb/s
- 8 x SATA3 6.0 Gb/s connectors
- 1 x ATA133 IDE connector (supports 2 x IDE devices)
- 1 x Floppy connector
- 1 x IR header
- 1 x COM port header
- 1 x IEEE 1394 header
- 1 x HDMI_SPDIF header
- 1 x Power LED header
- CPU/Chassis/Power FAN connector
- 24 pin ATX power connector
- 8 pin 12V power connector
- CD in header
- Front panel audio connector
- 2 x USB 2.0 headers (support 4 USB 2.0 ports)
- 1 x USB 3.0 header (supports 2 USB 3.0 ports)
- 1 x Dr. Debug (7-Segment Debug LED)
- 1 x PS/2 Mouse Port
- 1 x PS/2 Keyboard Port
- 1 x Coaxial SPDIF Out Port
- 1 x Optical SPDIF Out Port
- 6 x Ready-to-Use USB 2.0 Ports
- 2 x Ready-to-Use USB 3.0 Ports
- 1 x eSATA3 Connector
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
- 1 x IEEE 1394 Port
- 1 x Clear CMOS Switch with LED
- HD Audio Jack: Side Speaker / Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone