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Green rectangular ATX motherboard with silver sockets and black expansion slots

Intel

Intel BLKD975XBX2KR ATX Motherboard 975X Express LGA 775 DDR2 800 8GB

SKU CH-NK14-3JC6H MPN BLKD975XBX2KR

ATX motherboard with LGA 775 socket, Intel 975X chipset, four DDR2 800 slots supporting 8GB, three PCI Express x16 slots, eight SATA 3Gb/s ports, Gigabit LAN and 8-channel audio

  • Supports Core 2 Quad and Extreme processors via LGA 775 socket
  • Dual-channel DDR2 800 memory up to 8 GB across four slots
  • Three PCI Express x16 slots for multi-GPU configurations
  • Eight SATA 3Gb/s ports plus IDE for extensive storage options
  • 8-channel audio with optical and coaxial S/PDIF outputs

Intel 975X Express ATX Board

The Intel BLKD975XBX2KR is an ATX motherboard built around the Intel 975X Express northbridge and ICH7R southbridge. It fits LGA 775 processors including Core 2 Quad, Core 2 Extreme and Core 2 Duo with front-side bus speeds of 1066 or 800 MHz. The board provides four 240-pin DDR2 800 slots supporting up to 8 GB in dual-channel mode.

Three PCI Express x16 Slots

Three physical PCI Express x16 slots are available; one runs at electrical x16 or x8, a second at electrical x8 and the third at electrical x4. This layout replaces earlier single-slot designs and the jump is worth it when a build needs multiple graphics cards or additional expansion cards that require x16 mechanical slots. Two conventional PCI slots remain for legacy add-in cards.

Suited for Multi-GPU LGA 775 Builds

The board suits enthusiasts assembling a Core 2 Quad or Core 2 Extreme system that can use several graphics cards or a mix of x16 and x8 add-in cards. Builders who need integrated Wi-Fi, modern high-speed storage interfaces or a newer CPU socket should look at something else.

Highlights

  • Supports Core 2 Quad and Extreme processors via LGA 775 socket
  • Dual-channel DDR2 800 memory up to 8 GB across four slots
  • Three PCI Express x16 slots for multi-GPU configurations
  • Eight SATA 3Gb/s ports plus IDE for extensive storage options
  • 8-channel audio with optical and coaxial S/PDIF outputs

Specifications

No published specifications for this item yet.

Questions about this item

What are the ATX dimensions and mounting-hole pattern of the BLKD975XBX2KR motherboard?

The board measures 12.0" x 9.6" and follows the standard ATX form factor with the corresponding mounting-hole pattern for ATX cases.

How are the three PCI Express x16 slots electrically configured, and which one should receive the primary graphics card?

The first slot runs at x16 or x8, the second at x8, and the third at x4; install the main graphics card in the first slot for full bandwidth.

What memory specification and maximum capacity does the board support for future upgrades?

It supports DDR2 800 memory in dual-channel mode across four 240-pin slots, with a maximum capacity of 8GB.

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