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DP 8XXX Series
On-Board SCSI Adapter
Symbios SCSI Controller Jumper Settings
The board is equipped with an integrated Wide Ultra2 SCSI
controller (Symbios 53C895). This SCSI controller supports both LVD and Single-Ended SCSI
devices*. The controller is enabled or disabled via a hardware jumper SJP2. (The "S'
proceding the "JP" designates the jumper is specific to SCSI functions.)
The SCSI controller is a bus master device which gains control of the PCI bus to transfer
data between the CPU memory and the SCSI devices. The I/O base address and interrupts are
set by the PCI plug and play BIOS at boot time.
If the SCSI controller is ordered, 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.
SJP2 - Enable/Disable SCSI Controller
As stated above, the on-board Symbios Wide Ultra2 SCSI controller can be enabled or
disabled with SJP2 (see Figure above for SJP2 location).
| Jumper | Function | Jumper On Pins 1-2 |
Jumper On Pins 2-3 |
| SJP2 | SCSI | Enabled | Disabled |
SCSI Activity LED
There is an LED located on the top edge of the board next to
the internal SCSI connector. The LED will be red when the SCSI drive is busy. The LED is
only visible when the cover is off the Density System
Drivers
Symbios 825A SCSI drivers can be downloaded by clicking on the link below.
Symbios SCSI Drivers (SCSI-SYM.EXE)
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