Pci Express Connectors - Dell PowerEdge R910 Technical Manual

Dell
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Platform Environmental Control Interface (PECI)
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Intel Dynamic Power Mode Manager
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I/O interrupt controller
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SMBus 2.0 controller
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Low Pin Count (LPC) interface to Super I/O, Trusted Platform Module (TPM), and SuperVU
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Serial Peripheral Interface (SPI) support for up to two devices (R910 BIOS flash device is
connected to the ICH10 using SPI)

8.6 PCI Express Connectors

The R910 planar incorporates four 164-pin PCI Express-style x8 (slots 1, 2, 3 and 5) and three 164-pin
PCI Express-style x16 connectors (slots 4, 6 and 7) for connectivity to the PCIe cards. Only one x16
(slot 7) out of the three physical connectors is electrically x16 as well. The other two (slots 4 and 6)
are electrically x8 using a x16 physical connector for double wide GPGPU adapters.
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