Chapter 1: Introduction

Onboard SCSI

Onboard SCSI is provided with an Adaptec AIC-7899W SCSI controller chip, which supports dual channel, Ultra160 SCSI at a burst throughput rate of 160 MB/sec. The P4DLR+ provides two SCSI ports. A QLogic GEM318 controller is used for the SAF-TE compliant SCSI backpanel.

PCI Expansion Slots

The P4DLR+ has one 64-bit, 133 MHz PCI-X slot. A riser card is included with the server. This riser card fits into the 133 MHz PCI-X slot and was designed specially for the SC812-EO chassis to support the use of one standard PCI card. Several jumpers on the motherboard are used to change the speed of this slot if needed (see Chapter 5).

ATI Graphics Controller

The P4DLR+ features an integrated ATI video controller based on the Rage XL graphics chip. Rage XL fully supports sideband addressing and AGP texturing. This onboard graphics package can provide a bandwidth of up to 512 MB/sec over a 32-bit graphics memory bus.

Onboard Controllers/Ports

The P4DLR+ includes one floppy drive controller and two onboard IDE con- trollers, which support up to four hard drives or ATAPI devices. Backpanel I/O ports include one COM port, two USB ports, PS/2 mouse and keyboard ports, a video (monitor) port, an external SCSI port, one Intel 82550 Fast Ethernet (NIC) controller and one Intel Gigabit Ethernet controller for two LAN ports.

Other Features

Other onboard features are included to promote system health. These in- clude various voltage monitors, two CPU temperature sensors, fan speed sensors, a chassis intrusion header, auto-switching voltage regulators, chassis and CPU overheat sensors, virus protection and BIOS rescue.

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SUPER MICRO Computer 6012L-6 Onboard Scsi, PCI Expansion Slots, ATI Graphics Controller, Onboard Controllers/Ports