Dell 3 - Manual (Page 62)

60 PERC 3/SC Features
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PERC 3/SC BIOS
The BIOS resides on a 1 MB × 8 flash ROM for easy upgrade. The PERC
3/SC BIOS supports INT 13h calls to boot DOS without special software or
device drivers. The PERC 3/SC BIOS provides an extensive setup utility
that can be accessed by pressing <Ctrl> <M> at BIOS initialization. The
PERC 3/SC BIOS Configuration Utility is described in Chapter 11.
Onboard Speaker
The PERC 3/SC controller has an onboard tone generator for audible
warnings when system errors occur. Audible warnings can be generated
through this speaker. The audible warnings are listed in Chapter 13.
Serial Port
PERC 3/SC includes a 3-pin RS232C-compatible serial port connector. This
is for manufacturing use only.
SCSI Bus
PERC 3/SC has one Wide 160M SCSI channels that support both LVD and
single-ended devices with active termination. Synchronous and
asynchronous devices are supported. PERC 3/SC provides automatic
termination disable via cable detection. The SCSI channel supports up to
15 wide or seven non-wide SCSI devices at speeds up to 160 MB/s.
SCSI Connectors
PERC 3/SC has two types of SCSI connectors:
• One 68-pin high density internal connector
• One 68-pin external ultra-high-density connector
Only one connector type can be used for the SCSI channel at any one time.
SCSI Termination
PERC 3/SC uses active termination on the SCSI bus conforming to SCSI-2
and SCSI-3 specifications. Termination enable/disable is automatic through
cable detection.