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M54HI, M54HI (REV. 2A)

MICRONICS COMPUTERS, INC.

M54HI, M54HI (REV. 2A)

Processor

Pentium

Processor Speed

75/90/100/120MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

256/512KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface (secondary)

J6

Speaker

J33

IDE interface (primary)

J7

IDE interface LED

J34

Parallel port

J12

Power LED & keylock

J35

Serial port 1

J13

PS/2 mouse port

J38

Serial port 2

J14

Turbo LED

J39

Floppy drive interface

J15

32-bit PCI slots

PC1 - PC4

Reset switch

J32

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

J1

N/A

Factory configured - do not alter

J37

N/A

BIOS boot block select normal

W10

pins 2 & 3 closed

 

BIOS boot block select reversed

W10

pins 1 & 2 closed

Flash BIOS write protect enabled

W11

Open

 

Flash BIOS write protect disabled

W11

Closed

CMOS memory normal operation

W12

Open

 

CMOS memory clear

W12

Closed

Monitor type select color

W16

Closed

 

Monitor type select monochrome

W16

Open

PS/2 mouse not installed

W17

Open

 

PS/2 mouse installed

W17

Closed

Note: The location of J1 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

NONE

16MB

(2) 1M x 36

(2) 1M x 36

16MB

(2) 2M x 36

NONE

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

NONE

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

NONE

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

256KB

(4) 32K x 8

(4) 32K x 8

512KB

(4) 64K x 8

(4) 64K x 8

CACHE JUMPER CONFIGURATION

Size

W8

W9

W24

None

pins 1 & 2 closed

pins 1 & 2 closed

Open

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

512KB

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

Note: The location of W24 is unidentified.

CACHE TYPE CONFIGURATION

Setting

W6

W7

Pipeline burst

pins 1 & 2 closed

pins 1 & 2 closed

Asynchronous

pins 1 & 2 closed

pins 2 & 3 closed

Burst

pins 2 & 3 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

W4

W5

W30

75MHz

Closed

Closed

pins 1 & 2 closed

90MHz

Open

Closed

pins 2 & 3 closed

100MHz

Closed

Open

pins 2 & 3 closed

120MHz

Open

Closed

pins 2 & 3 closed

CPU SPEED RATIO CONFIGURATION

Speed

W2

1.5x

Open

2x

Closed

CPU VRE CONFIGURATION

Setting

W3

VR

Open

VRE

Closed

DMA CONFIGURATION

DMA

W18

W19

None

Open

Open

DMA1

pins 1 & 2 closed

pins 1 & 2 closed

DMA3

pins 2 & 3 closed

pins 2 & 3 closed