Chapter 2

DP6200 Series For PowerSMP
Chapter 2 - Switches & Jumpers

DP 6200 Series I/O Board

Figure 2-2, DP 6200 Series I/O Board

Switch Settings - I/O Board

S1, Switch 1 and 2 - Supervisory Interrupt

The IES module communicates with the DP processors in the subsystem via a hardware interrupt which is configurable as IRQ 10 or IRQ 15. Note that if the secondary IDE controller is used, IRQ 15 is not available. If no IES is installed, configure the DP for no IES Supervisory interrupt.

S1, Switch 3, and 4 - SCSI Termination

Termination for the SCSI cable is enabled or disabled with a hardware switch on the board. SCSI termination should be enabled when the SCSI cable terminates at the DP processor or if the SCSI interface is not used. The Symbios 825A SCSI adapter can be enabled or disabled with hardware jumper JP2.

See Chapter 3 for detailed SCSI termination information.

Table 2-1, I/O Board - S1 Switch Settings

Function	1	2	3	4
Supervisory Interrupt IRQ 10 *	on	off
Supervisory Interrupt IRQ 15	off	on
No Supervisory Interrupt	off	off
Disable Lower 8 bit SCSI #1 Termination			on	off
Disable Upper 8 bit SCSI #1 Termination			off	on
Disable Lower 8 bit SCSI #2 Termination			off	off
Disable Upper 8 bit SCSI #2 Termination			off	off
*Factory Settings	on	off	off	off

Jumper Settings - I/O Board

Refer to figure 2-2 for jumper locations.

JP1 - Ethernet Adapter

A DEC 21140 PCI Fast Ethernet (10/100 Mbps) controller is integrated onto the DP series I/O card. The controller can be disabled via jumper JP1 on the I/O card.

JP2 - SCSI Adapters

Table 2-2, I/O Board Jumpers

Jumper	Function	Jumper 1-2	Jumper 2-3
JP1	Ethernet #2 (DEC 21140 Chipset)	Enabled	Disabled
JP2	SCSI #2 (Symbios 825A Controller)	Enabled	Disabled

DP 6200 Series Processor Board

Figure 2-2, DP 6200 Series Processor Board

Jumper Settings - Processor Board

Refer to figure 2-1 for jumper locations.

Table 2-3, Flash BIOS and Password Jumpers

Jumper	Function	Jumper ON	Jumper OFF
JP1	BIOS Password	Normal	Disabled
JP13	Flash Reprogram	Enabled	Disabled

Video

A hardware jumper (JP14) can be set on the processor board to disable the on-board S3 Trio64V+(765) video controller. If this controller is disabled, an external video controller with a video BIOS at address C0000 hexadecimal must be installed.

Table 2-4, Video Enable/Disable Jumper

Jumper	Function	Jumper Pins	Jumper Pins
JP14	S3 Video Enable	1-2	2-3

Other Processor Board Jumpers

Jumpers 3 to 11 are processor dependent, and should not be changed from the factory settings.