Qi 486 (Panther Motherboard) Revision 'F' (Rev 1.1.16)

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
200 Maxtor LXT-213SY SCSI 14881831
380 IBM 0661 SCSI 14770431

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

3Com 32 bit bus master Ethernet card, thin/thick wire (3C527B) XB50379
3Com 16 bit Ethernet card, thin/thick wire (3C523B) XB48125
3Com 16 bit Ethernet card, UTP/thick wire (3C523B-TP) XB48127
IBM Token Ring 4/16Mb/s LAN card (25F9528) XB49546

Switch Settings

SW1

Switch

On

Off

1

Cache disable

Cache enable

2

ROM data on micro channel

ROM data not on Micro Channel

3

ROM's disabled

ROM's enabled

4

Refresh enabled

Refresh disabled

 

SW2

Position

Second Floppy

A

5.25"

B

3.5"

 

SW3

Position

Second Floppy

A

Present

B

Not present

 

SW4

Switch

On

Off

1

RAM configuration

2

RAM configuration

3

RAM configuration

4

CPU speed select

5

CPU speed select

6

FTs

FTe*

7

Reserved

Reserved

8

FTe/FTs

Qi*

* When installed in Qi and FTs FE1 must be removed
to stop power being supplied on floppy cable

 

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

 

Clock speed

CPU speed MHz

Switches

 

4

5

16/33

Off

Off

20

On

Off

25/50

Off

On

Reserved

On

On

 

SW5

Position

 

A

No sync on video

B

Sync on video

 

SW7

Position

 

A

2MB Floppy disk drive

B

4MB floppy disk drive

 

SW8

Position

 

A

Battery connected

B

Battery disconnected and VBAT line discharged

Additional Options

Apricot LOC Technology security.
Co - Processor
486SX 80487SX-25 XB48848

Rear Panel

 


CMOS Discharge

Switch SW8 used to drain CMOS. If SW8 is set to 'B' CMOS configuration will not be retained.



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