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DP 6200 "D" Series
On-Board SCSI Adapter
SCSI Device Installation
The board is equipped with two independent integrated fast/wide SCSI adapters. The adapters are enabled or disabled via the Chipset option of the BIOS Setup utility and via hardware jumpers (see the Quick Reference Guide for jumper settings) .
The SCSI adapters are bus master devices which gain control of the PCI bus to transfer data between the CPU memory and the SCSI devices. The I/0 base address and interrupts are set by the PCI plug and play BIOS at boot time.
A SCSI configuration utility is available on boot-up of the board. Shortly after the SCSI BIOS information displays, the configuration program can be accessed by pressing Control C. The configuration utility will allow you to scan the SCSI bus, change configuration options, and view a list of SCSI devices connected to the board.
Note: If the SCSI BIOS is inadvertently turned off in the SCSI configuration utility, turn it back on by holding <CTRL> A when the board is reset.
Termination - SCSI Adapter #1 (external SCSI devices)
Figure 3-1, Terminating External SCSI Devices
SCSI termination is controlled by dip switches 3-6 of switch 1 on the I/O board. The factory default is all switches OFF, which terminates connector J4 (on end bracket) as one end of the SCSI chain.
See figures 3-1 and 3-2 for termination switch settings.
Figure 3-2, Terminating External SCSI Devices
Termination - SCSI Adapter #2 (internal SCSI devices)
Figure 3-3, Terminating Internal SCSI Devices
SCSI termination is controlled by dip switches 3-6 of switch 1 on the I/O board. The factory default is all switches OFF, which terminates connector J5 (for internal SCSI hard drives) as one end of the SCSI chain.
See figures 3-3 and 3-4 for termination switch settings.
Figure 3-4, Terminating Internal SCSI Devices
The last device on the SCSI cable must also supply a termination load to the cable. SCSI devices not at the end of the cable must have their termination loads disconnected.
Enabling and disabling a SCSI device's termination may involve a switch or shunt setting or the installation or removal of resistive SIP or DIP packages on their circuit board. Consult the installation manual for the SCSI device to determine its termination options.
Symbios 825A Controller Features & Benefits
Drivers
Symbios 825A SCSI drivers can be downloaded by clicking on the link below.
Symbios SCSI Drivers (SCSI-SYM.EXE)
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