PC Server 320 - Jumper information for planar 12J4534

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Service Hints & Tips

Document ID: COBN-3HQDG6

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PC Server 320 - Jumper information for planar 12J4534

Applicable to: World-Wide

The new 320 EISA board (12J4534) accepts processors from 75Mhz to 200Mhz. Because of this design change, additional processor speed jumpers have been added to the new 320 EISA board.

There is no change to 320 MCA planars.

Note that it has never been officially supported to upgrade the 320 from one processor speed to another.

The new 320 EISA board (12J4534) uses the following jumper settings for processor speed:

W2

W6

W27

W28

W40

50/75Mhz

OPEN

PIN 2/3

OPEN

OPEN

CLOSED

60/90Mhz

OPEN

PIN 1/2

OPEN

OPEN

OPEN

66/100Mhz

OPEN

PIN 2/3

OPEN

OPEN

OPEN

66/133Mhz

CLOSED

PIN 2/3

OPEN

OPEN

OPEN

66/166Mhz

CLOSED

PIN 2/3

CLOSED

CLOSED

OPEN

66/200Mhz

OPEN

PIN 2/3

CLOSED

CLOSED

OPEN

Note that the two new jumpers on the list above are W27 and W28. Jumper W6 is a three position jumper.

Other Jumper Settings Listed:

Jumper

Description

Setting

W1

L1 CACHE MODE

OPEN - L1 WRITE-BACK (DEFAULT)
CLOSED - L1 WRITE-THROUGH

W5

L2 CACHE SIZE

PINS 1/2 - L2 CACHE SIZE 256KB (DEFAULT)
PINS 2/3 - L2 CACHE SIZE 512KB

W10

L2 CACHE SIZE

PINS 1/2 - L2 CACHE SIZE 256KB (DEFAULT)
PINS 2/3 - L2 CACHE SIZE 512KB

W15

RESERVED

PINS 1/2 - NO INFO AVAIL (DEFAULT)

W17

RESERVED

CLOSED - NO INFO AVAIL (DEFAULT)

W20

MONITOR SELECTION

OPEN - MONOCHROME MONITOR SETTING
CLOSED - COLOR MONITOR SETTING (DEFAULT)

W21

RESERVED

OPEN - AT STYLE KBD
CLOSED - PS/2 STYLE KBD AND MOUSE (DEFAULT)

W25

ISA IDE IRQ SELECT

PINS 1/2 - ISA IDE USING IRQ 14 PRIMARY IDE CONTROLLER (DEFAULT)
PINS 2/3 - ISA IDE USING IRQ 15 SECONDARY IDE

W30

RESERVED

OPEN - NO INFO AVAIL (DEFAULT)

W41

PARITY

CLOSED - NO INFO AVAIL (DEFAULT)

W42

RESERVED

OPEN - NO INFO AVAIL (DEFAULT)

All new planars from FRU stock should be coming with a sheet that has the above info and a system board diagram.

Search Keywords

Hint Category

Processors, Retain

Date Created

04-06-97

Last Updated

25-01-99

Revision Date

14-07-99

Brand

IBM PC Server

Product Family

PC Server 320

Machine Type

8640

Model

Various

TypeModel

Retain Tip (if applicable)

H055192

Reverse Doclinks
and Admin Purposes

	W2	W6	W27	W28	W40
50/75Mhz	OPEN	PIN 2/3	OPEN	OPEN	CLOSED
60/90Mhz	OPEN	PIN 1/2	OPEN	OPEN	OPEN
66/100Mhz	OPEN	PIN 2/3	OPEN	OPEN	OPEN
66/133Mhz	CLOSED	PIN 2/3	OPEN	OPEN	OPEN
66/166Mhz	CLOSED	PIN 2/3	CLOSED	CLOSED	OPEN
66/200Mhz	OPEN	PIN 2/3	CLOSED	CLOSED	OPEN

Jumper	Description	Setting
W1	L1 CACHE MODE	OPEN - L1 WRITE-BACK (DEFAULT) CLOSED - L1 WRITE-THROUGH
W5	L2 CACHE SIZE	PINS 1/2 - L2 CACHE SIZE 256KB (DEFAULT) PINS 2/3 - L2 CACHE SIZE 512KB
W10	L2 CACHE SIZE	PINS 1/2 - L2 CACHE SIZE 256KB (DEFAULT) PINS 2/3 - L2 CACHE SIZE 512KB
W15	RESERVED	PINS 1/2 - NO INFO AVAIL (DEFAULT)
W17	RESERVED	CLOSED - NO INFO AVAIL (DEFAULT)
W20	MONITOR SELECTION	OPEN - MONOCHROME MONITOR SETTING CLOSED - COLOR MONITOR SETTING (DEFAULT)
W21	RESERVED	OPEN - AT STYLE KBD CLOSED - PS/2 STYLE KBD AND MOUSE (DEFAULT)
W25	ISA IDE IRQ SELECT	PINS 1/2 - ISA IDE USING IRQ 14 PRIMARY IDE CONTROLLER (DEFAULT) PINS 2/3 - ISA IDE USING IRQ 15 SECONDARY IDE
W30	RESERVED	OPEN - NO INFO AVAIL (DEFAULT)
W41	PARITY	CLOSED - NO INFO AVAIL (DEFAULT)
W42	RESERVED	OPEN - NO INFO AVAIL (DEFAULT)

	Search Keywords
	Hint Category	Processors, Retain
	Date Created	04-06-97
	Last Updated	25-01-99
	Revision Date	14-07-99
	Brand	IBM PC Server
	Product Family	PC Server 320
	Machine Type	8640
	Model	Various
	TypeModel
	Retain Tip (if applicable)	H055192
	Reverse Doclinks and Admin Purposes