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PC SERVER 520 (TYPE 8641) MODEL MZO, MZV, MZS, MZL, MZE Motherboard Settings and Configuration






IBM CORPORATION

PC SERVER 520 (TYPE 8641) MODEL MZO, MZV, MZS, MZL, MZE

Processor

Pentium

Processor Speed

Unidentified

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

256MB

Maximum Video Memory

Unidentified

Cache

512KB

BIOS

Unidentified

Dimensions

355mm x 304mm

I/O Options

32-bit PCI slots (2), floppy drive interface, IDE interfaces (2), SCSI interface, Wide SCSI interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, cache slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

SCSI interface LED

J2

Serial port 2

J21

IDE interface

J3

Serial port 1

J24

Chassis fan power

J4

Reset switch

J25

Speaker

J6

SCSI interface

J28

CPU fan power

J8

Wide SCSI interface (internal)

J35

CPU fan power

J9

Wide SCSI interface (external)

J39

Power LED

J10

VGA port

J40

IDE interface

J13

PS/2 mouse port

J42

Parallel port

J19

32-bit PCI slots

PC1 -& PC2

Floppy drive interface

J20

Cache slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J3A

Unidentified

»

Factory configured - do not alter

J12

Open

»

Factory configured - do not alter

J14

Unidentified

»

Password write enabled

J15

Pins 2 & 3 closed

 

Password write disabled

J15

Pins 1 & 2 closed

»

Factory configured - do not alter (C2 cover)

J16

Unidentified

»

Factory configured - do not alter (C2 keylock)

J17

Unidentified

»

On board video enabled

J26

Pins 1 & 2 closed

 

On board video disabled

J26

Pins 2 & 3 closed

»

On board SCSI enabled

J27

Pins 1 & 2 closed

 

On board SCSI disabled

J27

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(2) 1M x 36

None

None

None

16MB

(2) 2M x 36

None

None

None

16MB

(2) 1M x 36

(2) 1M x 36

None

None

24MB

(2) 2M x 36

(2) 1M x 36

None

None

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

None

32MB

(2) 4M x 36

None

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

None

32MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

40MB

(2) 4M x 36

(2) 1M x 36

None

None

48MB

(2) 4M x 36

(2) 2M x 36

None

None

48MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

None

64MB

(2) 4M x 36

(2) 2M x 36

(2) 2M x 36

None

64MB

(2) 8M x 36

None

None

None

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

64MB

(2) 4M x 36

(2) 4M x 36

None

None

64MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

72MB

(2) 8M x 36

(2) 1M x 36

None

None

80MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

None

80MB

(2) 4M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

80MB

(2) 8M x 36

(2) 2M x 36

None

None

88MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

96MB

(2) 8M x 36

(2) 2M x 36

(2) 2M x 36

None

96MB

(2) 8M x 36

(2) 4M x 36

None

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

None

112MB

(2) 8M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

128MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

None

128MB

(2) 8M x 36

(2) 8M x 36

None

None

128MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

160MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

192MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

None

256MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

Note: The locations of the banks are unidentified.

CACHE CONFIGURATION

Size

Bank 0

512KB

512KB module installed

VIDEO MEMORY CONFIGURATION

Note: The size & location of the video memory is unidentified.

CPU CLOCK SPEED SELECTION

Speed

J43

50MHz

Pins 2 & 3 closed

60MHz

Pins 1 & 2 closed








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