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Processors

rx4640

The rx4640 is a zx1 based 4U server from HP.

It can have up to 4 Madison processors.

It supports either 16 or 32 DIMM slots which must be loaded in quads. Supported DIMM sizes are 256MB to 2GB.

It has 8 PCI-X slots. Slots 1 and 2 are used for core IO (SCSI and Ethernet). Slots 3-8 are hotplug capable. Slots 7 and 8 have 1GB/s bandwidth each. Slots 1 and 2, 3 and 4, and 5 and 6 are paired, sharing 500MB/s bandwidth between each pair of slots.

On the motherboard, there are EHCI USB ports, an IDE DVD-ROM drive and Diva serial ports / network console. It has two internal SCSI drive bays which support Ultra320.

Slot PCI bus number Notes
Motherboard00:xx EHCI USB, CMD649, Diva
Slot 1 20:01 LSI 53c1010 SCSI
Slot 2 20:02 Broadcom 57xx Ethernet
Slot 3 80:01
Slot 4 80:02
Slot 5 a0:01
Slot 6 a0:02
Slot 7 40:01 Dual-roped
Slot 8 c0:01 Dual-roped