Qi 486 (Panther Motherboard) Revision 'D' (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

Routes composite sync pulses to the Video DAC

B

Composite sync pulses required

 


Additional Options

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

Rear Panel

 


CMOS Discharge

If the settings in CMOS need to be removed then it will require the ribbon cable running from the LED board at the front of the system to be disconnected for approx. 20 minutes.



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