Compaq ProLiant 1850R Compaq ProLiant 1850R Setup and Installation Guide - Page 25
Disk Controller, 2DH Array Controller, the SMART-2/P Array Controller, and the Wide
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1-11 4 3 2 1 Figure 1-9. Rear view of expansion slot locations Slot location 4 is a Shared PCI/ISA slot for access to either the PCI bus or the ISA bus. Slots 1, 2, and 3 are PCI slots for access to the 33-MHz PCI bus. They provide data transfer rates up to 133-Mb/s. The PCI bus provides peripheral transactions at a system clock speed of 33-MHz. Disk Controller The Dual Channel Integrated Wide-Ultra SCSI-3 controller utilizes two independent SCSI channels (Ports). Port 1 is connected to the internal hot-plug drive cage. Port 2 can either be connected to the devices in the removable media bay or to the external Wide-Ultra SCSI-3 port. Dual Channel Integrated Wide-Ultra SCSI-3 controller on the PCI local bus. The controller is capable of handling up to three hot-plug hard drives and two non-hot-plug SCSI devices without utilizing an expansion slot. This controller performs at a maximum rate of 40 megabytes per second (MB/s). Doubles Fast-Wide SCSI-2 transfer rates from 20-MB to 40-MB per channel on each channel. Optional controller boards available for expanding storage capacity. Optional boards are the SMART-2SL Array Controller, the SMART2DH Array Controller, the SMART-2/P Array Controller, and the WideUltra SCSI-3 Controller. Compaq ProLiant 1850R Setup and Installation Guide