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Service Hints & Tips

Document ID: DDSE-3QNJAS

PCServer704 - Backplane Information

Applicable to: World-Wide

Backplane Connectors

J2 LED cable connector for drives 1, 2, 3
J3,J4 Drive ID and configuration jumper blocks
J5 Wide SCSI bay drive 1
J6 Wide SCSI bay drive 2
J7 Wide SCSI bay drive 3
J8 Narrow SCSI cable, output
J9 LED cable connector for drives 4, 5, 6
J10 Power and ground from power distribution board and power supply
J11 IC bus connector
J12 Wide SCSI drive bay 4
J13 Wide SCSI drive bay 5
J14 Wide SCSI drive bay 6
J15 Wide SCSI cable connector, input from channel A or B

Backplane Configuration Jumpers
SCSI Drive ID, J3 and J4

Jumper Pins SCSI ID of Drive

J3,IDA J4,IDB HD HD HD HD HD HD 1 2 3 4 5 6

1-2 1-2 0 1 10 3 4 13 1-21 2-3 0 1 2 3 4 5 2-3 2-3 8 9 2 11 12 5 2-32 1-2 8 9 10 11 12 13 Factory default setting for ARRAY models.

SCSI Flash Update Jumper, J4

Jumper Pins Description

10-11 Reserved 9-10 Normal Factory default setting.

External Backplane Jumper

Jumper Pins Description

6-7 Reserved 5-61 Internal backplane (backplane is installed in the server) Factory default setting.

Secondary Jumper, J4

Note
When more than one backplane is installed in the server, the backplane in the upper position is jumpered as primary and the backplane in the lower position is jumpered as secondary.

Jumper Pins Description

6-7 Secondary 5-61 Primary Factory default setting.

	Search Keywords
	Hint Category	Hard Drives, Hardware Maintenance Information
	Date Created	14-06-96
	Last Updated	22-01-99
	Revision Date	11-06-99
	Brand	IBM PC Server
	Product Family	PC Server 704
	Machine Type	8650
	Model	all
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes