IBM 86884RX Installation Guide - Page 36
MAC Media Access Controller on a PCI 64-bit 66 MHz bus.
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PCI-X slot 4 PCI-X slot 3 (100 MHz) (100 MHz) PCI-X slot 5 (133 MHz) Back of server PCI-X slot 2 (66 MHz) PCI-X slot 6 (133 MHz) PCI-X slot 1 (66 MHz) Bus: D C B A Figure 1-12 PCI slot information See 3.1.3, "PCI slot configuration" on page 44 for details on what adapters are supported and in what combinations. The PCI subsystem also supplies these I/O devices: Two Wide Ultra320 SCSI ports, one internal and one external (LSI LSI53C1030 chipset). This SCSI controller supports both single disks and RAID-1 mirrored pairs of disks. Dual Gigabit Ethernet ports (Broadcom 5704 chipset). The x450 includes a dual-port Broadcom BCM5704 10/100/1000 Base-T MAC (Media Access Controller) on a PCI 64-bit 66 MHz bus. The BCM5704 supports full and half-duplex performance at all speeds (10/100/1000 Mbps, auto-negotiated) and includes integrated on-chip memory for buffering data transmissions to ensure the highest network performance and dual onboard RISC processors for advanced packet parsing and backwards compatibility with today's 10/100 network. The Broadcom controller also includes software support for failover, layer-3 load balancing, and comprehensive diagnostics. Category 5 or better Ethernet cabling is required with RJ-45 connectors. If you plan to implement a Gigabit Ethernet connection, ensure your network infrastructure is capable of the necessary throughput to match the server's I/O capacity. SVGA with 8 MB video memory (ATI RageXL chipset). 22 IBM ^ xSeries 450 Planning and Installation Guide