MICRONICS MOTHERBOARD

80386-16 (Baby size)

This document is for the baby-sized (13.3" x 8.5") 80386-16 motherboard.

It's identifying features are: an LED between expansion slots #5 and #6; a

proprietary memory card slot #7; a bank of eight switches between slot #1

and the keyboard connector; two ROM sockets; 8-bit slots for #2 and #5;

16-bit slots for #1, #3, #4, #6, and #8; and a socket for an 80387 math

coprocessor.

The bus speed for this motherboard is fixed at 8MHz.

+=============================+

+ +

+ MOTHERBOARD SWITCH SETTINGS +

+ +

+ * = Default setting +

+=============================+

Settings for Award Bios version C3.04

------------------------------------------

1 Reserved *On

2 80387 Coprocessor installed On

80387 Coprocessor not installed *Off

3 Reserved *Off

4 Bios relocation enabled *On

Bios relocation disabled Off

5 Reserved *Off

6 Color video adapter *On

Monochrome video adapter Off

7 Reserved *Off

8 Cache enabled (w/M100C or M400C) On

Cache disabled Off

Settings for Phoenix Bios version 1.10 03

------------------------------------------

1 Reserved *On

2 80387 Coprocessor installed On

80387 Coprocessor not installed *Off

3 Cache enabled (w/M100C or M400C) On

Cache disabled Off

4 Bios relocation enabled *On

Bios relocation disabled Off

5 Reserved *Off

6 Color video adapter *On

Monochrome video adapter Off

7 Reserved *Off

8 Reserved *Off

Settings for Phoenix Bios version 1.10 05 and later

---------------------------------------------------

1 Reserved *On

2 80387 Coprocessor installed On

80387 Coprocessor not installed *Off

3 Reserved *Off

4 Bios relocation enabled *On

Bios relocation disabled Off

5 Reserved *Off

6 Color video adapter *On

Monochrome video adapter Off

7 Cache enabled (w/M100C or M400C) On

Cache disabled *Off

8 Reserved *Off

+=============================+

+ +

+ MOTHERBOARD JUMPER SETTINGS +

+ +

+=============================+

J1 External 6-volt battery connector

Pin 1 - Battery Positive

Pin 2 - no connector

Pin 3 - Ground

Pin 4 - Ground

J21 Keylock / Power LED

Pin 1 - Power LED signal

Pin 2 - no connector

Pin 3 - Ground

Pin 4 - Keyboard lock signal

Pin 5 - Ground

J22 External speaker

Pin 1 - Speaker

Pin 2 - no connector

Pin 3 - Ground

Pin 4 - +5 volts

W1 Reset switch

Pin 1 - Signal

Pin 2 - Ground

W3 Reserved

Pins 1-2

W9 Turbo LED

Pin 1 - Signal

Pin 2 - Ground

W10 Reserved

No connector

+==============+

+ +

+ MEMORY CARDS +

+ +

+==============+

M100 memory card:

=================

The M100 memory card can hold 1MB or 2MB. The first MB is usually soldered

on the board.

NOTE: All of the memory on the M100 must be static column DRAM (as opposed

to page mode DRAM) in order for the 2M-08, or 4M-08 to operate.

There is a row of nine (9) jumper pins in the lower left corner of the

M100 memory card. They should be positioned as follows:

1MB Pin 2-3, Pin 4-5, Pin 7-8

2MB Pin 1-2, Pin 4-5, Pin 7-8

4MB Pin 1-2, Pin 4-5, Pin 7-8 (with 2M-08)

6MB Pin 1-2, Pin 4-5, Pin 7-8 (with 4M-08)

10MB Pin 1-2, Pin 4-5, Pin 7-8 (with 4M-08)

Recommended memory chips for the second MB

------------------------------------------

Hitachi HM51258P-8 256Kx1 static column DRAM

Hitachi HM51258P-10 256Kx1 static column DRAM

Hitachi HM51258P-12 256Kx1 static column DRAM

NMB AAA2800P-07 256Kx1 static column DRAM

NMB AAA2800P-08 256Kx1 static column DRAM

NMB AAA2800P-10 256Kx1 static column DRAM

Panasonic MN41256A-08 256Kx1 page mode DRAM (see note above)

Hyundai HY53C256LS-80 256Kx1 page mode DRAM (see note above)

NMB AAA2801P-08 256Kx1 page mode DRAM (see note above)

NMB AAA2801P-10 256Kx1 page mode DRAM (see note above)

M200 memory card:

=================

The M200 memory card can hold 4MB or 8MB using 1Mx1 DRAM. The top two rows

of chips make up bank 0, and the bottow two rows make up bank 1.

There is a set of five (5) two-pin jumpers in the lower left corner of the

M200 memory card. They should be set as follows:

W1 W2 W3 W4 W5

4MB ON ON OFF OFF OFF

8MB OFF ON OFF OFF OFF

12MB OFF OFF OFF OFF OFF (with 4M-08)

16MB OFF OFF OFF OFF OFF (with 4M-08)

Recommended memory chips

------------------------

Toshiba TC511000P-85 1Mx1 page mode DRAM

Toshiba TC511000P-10 1Mx1 page mode DRAM

Samsung KM41C1000P-10 1Mx1 page mode DRAM

Samsung KM41C1000P-80 1Mx1 page mode DRAM

Mitsubishi M5M4100AP 1Mx1 page mode DRAM

Motorola MCM511000P-10 1Mx1 page mode DRAM

Motorola MCM511000P-85 1Mx1 page mode DRAM

Siemens HYB511000-85 1Mx1 page mode DRAM

Siemens HYB511000-70 1Mx1 page mode DRAM

Intel P21010-08 1Mx1 page mode DRAM

Intel P21010-10 1Mx1 page mode DRAM

M300 memory card:

=================

The M300 memory card can hold 1MB, 2MB, or 6MB. Each of the first two MB

is made up of four (4) 256Kx1, and eight (8) 256Kx4 chips. The lower

four rows of chips hold 1Mx1 chips, and must be filled in completely. It

is not possible to partially fill the lower bank of memory.

There is a bank of eight (8) switches in the upper left corner of the

M300 memory card. They should be set as follows:

SW1.1 SW1.2 SW1.3 SW1.4 SW1.5 SW1.6 SW1.7 SW1.8

1MB OFF OFF OFF OFF ON ON OFF ON

2MB OFF OFF ON OFF ON ON OFF ON

6MB OFF ON ON OFF ON ON OFF ON

10MB ON ON ON OFF ON ON OFF ON (with 4M-08)

14MB ON ON ON OFF ON ON OFF ON (with 4M-08)

Recommended memory chips

------------------------

Hyundai HY53C256LS-10 256Kx1 page mode DRAM

Hyundai HY53C256LS-80 256Kx1 page mode DRAM

NMB AAA2801P-07 256Kx1 page mode DRAM

NMB AAA2801P-08 256Kx1 page mode DRAM

OKI M514256-10 256Kx4 page mode DRAM

Fujitsu MB81C4256-10P 256Kx4 page mode DRAM

Siemens HYB514256A-80 256Kx4 page mode DRAM

Samsung KM44C256AP-80 256Kx4 page mode DRAM

Toshiba TC511000P-10 1Mx1 page mode DRAM

Toshiba TC511000P-85 1Mx1 page mode DRAM

NEC D421000C-80 1Mx1 page mode DRAM

Motorola MCM511000P-10 1Mx1 page mode DRAM

Motorola MCM511000P-85 1Mx1 page mode DRAM

Samsung KM41C1000P-10 1Mx1 page mode DRAM

Siemens HYB511000-85 1Mx1 page mode DRAM

Siemens HYB511000-70 1Mx1 page mode DRAM

Mitsubishi M5M4100AP 1Mx1 page mode DRAM

M100C memory card:

==================

The M100C memory card can hold 1MB or 2MB. It has an Austek cache

controller in the lower left corner of the card. It accommodates either

the 2M-08, or the 4M-08.

NOTE: Static column DRAM (as opposed to page mode DRAM) is recommended when

using either the 2M-08, or the 4M-08.

There are two jumpers on the M100C memory card. W1 is in the upper left

corner, and W3 is in the lower left corner. They should be set as follows:

W1 W3

1MB Pin 1-2 ON

2MB Pin 2-3 ON

4MB Pin 2-3 ON (with 2M-08)

6MB Pin 2-3 ON (with 4M-08)

10MB Pin 2-3 ON (with 4M-08)

Recommended memory chips

------------------------

Hitachi HM51258P-8 256Kx1 static column DRAM

NMB AAA2800P-07 256Kx1 static column DRAM

NMB AAA2800P-08 256Kx1 static column DRAM

Panasonic MN41256A-08 256Kx1 page mode DRAM (see note above)

Sharp LH21256-08 256Kx1 page mode DRAM (see note above)

NMB AAA2801P-06 256Kx1 page mode DRAM (see note above)

NMB AAA2801P-08 256Kx1 page mode DRAM (see note above)

M400C memory card:

==================

The M400C memory card can hold 4MB or 8MB. It has an Austek cache

controller in the lower left corner. The M400C cannot accommodate either

of the memory expansion cards, as it has no connectors.

There are two jumpers on the M400C memory card. W1 is in the upper left

corner, and W3 is in the lower left corner. They should be set as follows:

W1 W3

4MB Pin 1-2 ON

8MB Pin 2-3 ON

Recommended memory chips

------------------------

NEC D421000C-80 1Mx1 page mode DRAM

Motorola MCM511000P-85 1Mx1 page mode DRAM

Siemens HYB511000-70 1Mx1 page mode DRAM

Siemens HYB511000-85 1Mx1 page mode DRAM

Intel P21010-08 1Mx1 page mode DRAM

Samsung KM41C1000P-80 1Mx1 page mode DRAM

2M-08 memory expansion board:

=============================

The 2M-08 provides an additional 2MB, and is compatible with the M100, and

M100C memory cards. It is not compatible with the M200, the M300, or the

M400C. The 2M-08 comes populated, and has no jumpers or switches to set.

4M-08 memory expansion board:

=============================

The 4M-08 provides an additional 4MB (expandable to 8MB) for the M100, M200,

M300, and M100C memory cards. It is not compatible with the M400C. There

is a bank of four (4) switches on the card. The settings differ for each

of the main memory boards.

Recommended memory chips

------------------------

Use the tables above for the 1Mx1 page mode DRAM used for the appropriate

main memory card.

With the M100:

--------------

S1 S2 S3 S4

6MB ON OFF OFF OFF

10MB ON OFF ON OFF

With the M200:

--------------

S1 S2 S3 S4

12MB OFF ON OFF OFF

16MB OFF ON ON OFF

With the M300:

--------------

S1 S2 S3 S4

10MB ON ON OFF OFF

14MB ON ON ON OFF

With the M100C:

---------------

S1 S2 S3 S4

6MB ON OFF OFF OFF

10MB ON OFF ON OFF