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EXCALIBUR PCI-II PENTIUM ISA

AMERICAN MEGATRENDS, INC.

EXCALIBUR PCI-II PENTIUM ISA

Processor

Pentium

Processor Speed

60/66MHz

Chip Set

AMI

Max. Onboard DRAM

128MB

Cache

256/512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Green PC connector

J1

IDE interface LED

J28

PS/2 mouse port

J13

Serial port 1

J4

Power LED & keylock

J15

Serial port 2

J5

Speaker

J17

Parallel port

J7

Reset switch

J18

Floppy drive interface

J8

Turbo switch

J20

IDE interface (secondary)

J10

Turbo LED

J24

IDE interface (primary)

J11

Green PC connector

J25

32-bit PCI slots

SL1 - SL4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Cache write mode select write back

J29

Open

 

Cache write mode select write through

J29

Closed

Parallel port IRQ select IRQ7

J37

pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

J37

pins 2 & 3 closed

Serial port 2 IRQ select IRQ3

J38

pins 1 & 2 closed

 

Serial port 2 IRQ select IRQ4

J38

pins 2 & 3 closed

Serial port 1 IRQ select IRQ4

J39

pins 1 & 2 closed

 

Serial port 1 IRQ select IRQ3

J39

pins 2 & 3 closed

On board mouse enabled

J40

pins 1 & 2 closed

 

On board mouse disabled

J40

pins 2 & 3 closed

Factory configured - do not alter

J47

Open

CMOS memory normal operation

J48

Open

 

CMOS memory clear

J48

Closed

Factory configured - do not alter

J51

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

NONE

4MB

(2) 256K x 36

(2) 256K x 36

4MB

(2) 512K x 36

NONE

8MB

(2) 512K x 36

(2) 512K x 36

8MB

(2) 1M x 36

NONE

16MB

(2) 1M x 36

(2) 1M x 36

16MB

(2) 2M x 36

NONE

20MB

(2) 512K x 36

(2) 2M x 36

32MB

(2) 2M x 36

(2) 2M x 36

32MB

(2) 4M x 36

NONE

36MB

(2) 512K x 36

(2) 4M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 4M x 36

(2) 4M x 36

64MB

(2) 8M x 36

NONE

80MB

(2) 2M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

NONE

CACHE CONFIGURATION

Size

Bank 0

256KB

(8) 32K x 8

512KB

(8) 64K x 8

CACHE JUMPER CONFIGURATION

Size

J21

J22

J23

256KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

512KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

CPU OUTPUT SIGNAL BUFFER CONFIGURATION

Type

J30

J32

Normal system

Open

Open

Loaded system

Closed

Open

Extra loaded system

Closed

Closed

Note: The location of jumpers J30 & J32 are unidentified.

DMA CHANNEL CONFIGURATION

DMA channel

J43

J44

None

Open

Open

DRQ0

pins 1 & 2 closed

pins 1 & 2 closed

DRQ1

pins 3 & 4 closed

pins 3 & 4 closed

DRQ3

pins 5 & 6 closed

pins 5 & 6 closed