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