Qi 900 (Scorpion Motherboard) (Rev 1.1.13)

RAM Configuration
Ethernet Options
Disk Drives
Switch Settings
Additional Options
Rear Panel
CMOS Discharge



RAM Configuration

Switches

SIMM Capacity

Memory Fitted

1

2

3

Bank 0

Bank 1

1 MByte

Off

Off

Off

256k

-

1 MByte

On

Off

Off

256k

-

2 MByte

Off

On

Off

256k

256k

4 MByte

Off

Off

On

1 M

-

5 MByte

On

On

Off

256k

1 M

8 MByte

On

Off

On

1 M

1 M

12 MByte

Off

On

On

2 M

1 M

16 MByte

On

On

On

2 M

2 M


Disk Drives

MB Make Model Type Part Number
50 Quantum LPS52S SCSI 14588431
100 Quantum LPS105S SCSI 14588331
380 IBM 0661 SCSI 14771431

Tape Drives

MB Make Model Type Part Number
120 Irwin 3.5" XB45915

Floppy Drives

MB Make Model Type Part Number
2 MB 3.5"

Ethernet Options

Via Expansion Card Only.


Switch Settings

SW1

Position

Second Floppy

A

5.25"

B

3.5"

 

SW2

Position

Second Floppy

A

Present

B

Not Present

 

SW5

SW5

position B

 

SW3

Switch

On

Off

1

Pipeline 386 enable

Pipeline 386 disable

2

Pipeline 385 enable

Pipeline 385 disable

3

ROM's disabled

ROM's enabled

4

Refresh enabled

Refresh disabled

 

SW4

Switch

On

Off

1

RAM configuration

2

RAM configuration

3

RAM configuration

4

CPU speed select

5

CPU speed select

6

Not currently used

7

Weitek present *

Weitek not present

8

Not currently used

* PAL required to enable

 

RAM
 

Switches

SIMM Capacity

Memory Fitted

1

2

3

Bank 0

Bank 1

1 MByte

Off

Off

Off

256k

-

1 MByte

On

Off

Off

256k

-

2 MByte

Off

On

Off

256k

256k

4 MByte

Off

Off

On

1 M

-

5 MByte

On

On

Off

256k

1 M

8 MByte

On

Off

On

1 M

1 M

12 MByte

Off

On

On

2 M

1 M

16 MByte

On

On

On

2 M

2 M

 

Clock speed

CPU speed MHz

Switches

 

4

5

25 MHz

Off

On


Additional Options

Apricot LOC Technology security.


Rear Panel


CMOS Discharge

To drain CMOS remove the battery and wait approx. 20 minutes to drain.


 

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