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Intel D975XBX: Sophisticated And Quiet

Four 975X Motherboards For Core 2 Duo
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Feature Overview

Intel respects users with legacy devices by providing both serial and parallel ports. The board uses the ICH7R and thus offers four Serial ATA/300 ports, but also has a Silicon Image controller that provides four more serial storage ports.

The PCI Express slot configuration is rather special: there are three x16 slots that can all accommodate PCI Express graphics cards, but their performance varies. If you install a single graphics card into the first slot, it will be powered by 16 lanes; if a second graphics adapter is installed, both slots will run in x8 mode. The third slot is always powered by four PCI Express lanes and is quick enough to run a third graphics card (so you can install up to six displays) or a storage adapter.

Intel D975XBX (Rev. 304)
Northbridge Intel 975X (Rev. C0)
Southbridge Intel ICH7R (82801 GB)
Voltage Regulator 5 Phases
BIOS 0714.1343 (07/14/2006)
Clock Generator ICS954108CFLF
266.6 MHz (FSB1066) 266.7 MHz (+0.01%)
Connectors and Interfaces
onboard 1x PCIe x16 (x16)
1x PCIe x16 (x8)
1x PCIe x16 (x4)
2x PCI
8x SATA
1x IDE
4x USB 2.0
1x Firewire
1x Audio for Front Panel
2x Fan 4 pins (CPU)
2x Fan 3 pins (System)
1x Speaker
IO panel 2x PS2 (keyboard + mouse)
1x LPT
1x COM
1x Network
4x USB 2.0
1x Firewire
1x SPDIF out
1x optical Out
1x 7.1 Channel Audio
Mass Storage Controllers
ICH7 1x IDE (ATA100/66/33)
4x SATA (RAID 0,1,5,10)
Silicon Image Sil3114CTU 4x SATA (RAID 0,1,5,10)
Network
Intel 82573L 1x 1 Gbit/s LAN
Audio
Sigmatel STAC922105 High Definition Audio
Firewire
Texas Instruments TI 43AB23 2x 1394a (400 Mbit/s)

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