GEMLIGHT COMPUTER, LTD.
GMB-486SPS (VER. 1.03)
Processor |
AM486/UMCU5SX/80486SX/SL80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/(SL)AM486DX2(WB)/(SL)AM486DX2(WT)/ 80486DX2/SL80486DX2/(SL)AM486DX4(WB)/(SL)AM486DX4(WT)/ AM486DX4/ 80486DX4/CXM1SC(WB)/CXM1SC(WT)/P24D/P24T |
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)/133(internal)MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
128MB |
Maximum Video Memory |
None |
Cache |
64/128/256/512/1024KB |
BIOS |
Award |
Dimensions |
250mm x 220mm |
I/O Options |
32-bit PCI slots (4), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Reset switch |
J1 |
IDE interface 1 |
J12 |
Turbo LED |
J2 |
IDE interface 2 |
J13 |
Power LED & keylock |
J3 |
Serial port 1 |
J14 |
Speaker |
J4 |
Serial port 2 |
J15 |
Turbo switch |
J5 |
Game interface |
J16 |
Green PC connector |
J6 |
Parallel port |
J17 |
IDE interface LED |
J7 |
Floppy drive interface |
J18 |
External battery |
J8 |
32-bit PCI slots |
PC1 - PC4 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
|
Turbo enabled |
J5 |
Pins 2 & 3 closed |
Turbo disabled |
J5 |
Pins 1 & 2 closed | |
|
Monitor type select color |
JP33 |
Closed |
Monitor type select monochrome |
JP33 |
Open | |
|
CMOS memory normal operation |
JP38 |
Pins 1 & 2 closed |
CMOS memory clear |
JP38 |
Pins 2 & 3 closed | |
|
Parallel port IRQ select IRQ7 |
JP51 |
Pins 1 & 2 closed |
Parallel port IRQ select IRQ5 |
JP51 |
Pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
1MB |
(1) 256K x 36 |
None |
None |
None |
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
2MB |
(1) 512K x 36 |
None |
None |
None |
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 512K x 36 |
None |
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
None |
None |
4MB |
(1) 1M x 36 |
None |
None |
None |
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
None |
None |
6MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
None |
6MB |
(1) 512K x 36 |
(1) 1M x 36 |
None |
None |
8MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
8MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
None |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
8MB |
(1) 2M x 36 |
None |
None |
None |
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
12MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
None |
None |
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
None |
None |
16MB |
(1) 4M x 36 |
None |
None |
None |
DRAM CONFIGURATION (CONT) | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
16MB |
(1) 4M x 36 |
None |
None |
None |
17MB |
(1) 256K x 36 |
(1) 4M x 36 |
None |
None |
18MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
None |
18MB |
(1) 512K x 36 |
(1) 4M x 36 |
None |
None |
20MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 4M x 36 |
None |
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
20MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
24MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
None |
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
24MB |
(1) 2M x 36 |
(1) 4M x 36 |
None |
None |
28MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
32MB |
(1) 8M x 36 |
None |
None |
None |
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 4M x 36 |
None |
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
36MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
None |
None |
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
None |
40MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 4M x 36 |
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
None |
None |
48MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
48MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 8M x 36 |
None |
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
64MB |
(1) 16M x 36 |
None |
None |
None |
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
None |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
None |
None |
65MB |
(1) 256K x 36 |
(1) 16M x 36 |
None |
None |
68MB |
(1) 1M x 36 |
(1) 16M x 36 |
None |
None |
68MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
None |
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
80MB |
(1) 4M x 36 |
(1) 16M x 36 |
None |
None |
80MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
80MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
None |
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
128MB |
(1) 16M x 36 |
(1) 16M x 36 |
None |
None |
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
TAG |
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
Unidentified |
128KB |
(4) 32K x 8 |
None |
Unidentified |
256KB (A) |
(4) 32K x 8 |
(4) 32K x 8 |
Unidentified |
256KB (B) |
(4) 64K x 8 |
None |
Unidentified |
512KB (A) |
(4) 64K x 8 |
(4) 64K x 8 |
Unidentified |
512KB (B) |
(4) 128K x 8 |
None |
Unidentified |
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
Unidentified |
CACHE JUMPER CONFIGURATION | ||||
Size |
JP19 |
JP24 |
JP25 |
JP26 |
64KB |
1 & 2 |
1 & 2 |
Open |
Open |
128KB |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
256KB (A) |
1 & 2 |
2 & 3 |
Open |
2 & 3 |
256KB (B) |
1 & 2 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
512KB (A) |
2 & 3 |
2 & 3 |
Open |
2 & 3, 4 & 5 |
512KB (B) |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2, 4 & 5 |
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Note: Pins designated should be in the closed position. |
TAG JUMPER CONFIGURATION | ||||
Size |
JP20 |
JP21 |
JP22 |
JP27 |
64KB |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
128KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
256KB (A) |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
256KB (B) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
512KB (A) |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
512KB (B) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
1MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
CPU SPEED SELECTION | |||||
Speed |
JP3 |
JP18 |
S1 |
S2 |
S3 |
20MHz |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
25MHz |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
33MHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
40MHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Open |
50iMHz |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
50MHz |
2 & 3 |
1 & 2 |
Open |
Open |
Closed |
66iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
75iMHz |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
CPU SPEED SELECTION (CONT) | |||||
Speed |
JP3 |
JP18 |
S1 |
S2 |
S3 |
80iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Open |
83iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
100iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
120iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Open |
133iMHz |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION | |||||
Type |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
AM486 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
UMC U5SX |
Open |
Open |
2 & 3 |
Open |
2 & 3 |
80486SX |
Open |
Open |
Open |
Open |
2 & 3 |
SL80486SX |
Open |
Open |
1 & 2 |
Open |
2 & 3 |
CX486DX |
Open |
Open |
1 & 2 |
2 & 3 |
2 & 3 |
AM486DX |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
80486DX |
Open |
Open |
Open |
Open |
2 & 3 |
CX486DX2 |
Open |
Open |
1 & 2 |
2 & 3 |
2 & 3 |
AM486DX2 |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
(SL)AM486DX2 (WB) |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
(SL)AM486DX2 (WT) |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
80486DX2 |
Open |
Open |
Open |
Open |
2 & 3 |
SL80486DX2 |
Open |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
(SL)AM486DX4 (WB) |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
(SL)AM486DX4 (WT) |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
AM486DX4 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
80486DX4 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
CX M1SC (WB) |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
CX M1SC (WT) |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
P24D |
Open |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
P24T |
Open |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CONT) | ||||
Type |
JP9 |
JP11 |
JP12 |
JP13 |
AM486 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 4 & 5 closed |
UMC U5SX |
Open |
Open |
Open |
Open |
80486SX |
Open |
Open |
Open |
Open |
SL80486SX |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
CX486DX |
Pins 1 & 2 closed |
Open |
Open |
Pins 2 & 3 closed |
AM486DX |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
80486DX |
Open |
Open |
Open |
Open |
CX486DX2 |
Pins 1 & 2 closed |
Open |
Open |
Pins 2 & 3 closed |
AM486DX2 |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
(SL)AM486DX2 (WB) |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
(SL)AM486DX2 (WT) |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
80486DX2 |
Open |
Open |
Open |
Open |
SL80486DX2 |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
(SL)AM486DX4 (WB) |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
(SL)AM486DX4 (WT) |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
AM486DX4 |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
80486DX4 |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
CX M1SC (WB) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 4 & 5 closed |
CX M1SC (WT) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 4 & 5 closed |
P24D |
Pins 2 & 3 closed |
Open |
Pins 1 & 2 closed |
Pins 4 & 5 closed |
P24T |
Pins 2 & 3 closed |
Open |
Open |
Pins 1 & 2 closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CONT) | ||||
Type |
JP14 |
JP15 |
JP16 |
JP17 |
AM486 |
1 & 2, 3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
UMC U5SX |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
80486SX |
2 & 3 |
Open |
Open |
Open |
SL80486SX |
2 & 3 |
Open |
3 & 4 |
Open |
CX486DX |
1 & 2, 3 & 4 |
3 & 4 |
2 & 3 |
2 & 3 |
AM486DX |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
80486DX |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
CX486DX2 |
1 & 2, 3 & 4 |
3 & 4 |
2 & 3 |
2 & 3 |
AM486DX2 |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
(SL)AM486DX2 (WB) |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
(SL)AM486DX2 (WT) |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
80486DX2 |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
SL80486DX2 |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
(SL)AM486DX4 (WB) |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
(SL)AM486DX4 (WT) |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
AM486DX4 |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
80486DX4 |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
CX M1SC (WB) |
1 & 2, 3 & 4 |
3 & 4 |
1 & 2 |
Open |
CX M1SC (WT) |
1 & 2, 3 & 4 |
3 & 4 |
1 & 2 |
Open |
P24D |
1 & 2, 3 & 4 |
3 & 4 |
3 & 4 |
Open |
P24T |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4 |
1 & 2 |
Note: Pins designated should be in the closed position. |
CPU MULTIPLIER SELECTION (DX4 ONLY) | |
Multiplier |
JP10 |
2x |
Pins 2 & 3 closed |
3x |
Open |
CPU VOLTAGE SELECTION | |||
Voltage |
S4 |
S5 |
S6 |
3.3v |
Pins 1 & 2 closed |
Open |
Open |
3.45v |
Open |
Pins 1 & 2 closed |
Open |
3.6v |
Open |
Open |
Pins 1 & 2 closed |
4v |
Open |
Open |
Open |
5v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
DMA CHANNEL SELECTION | |||||
Channel |
JP36 |
JP37 |
JP52 |
JP53 | |
Printer |
Open |
Open |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
1 |
Pins 1 & 3 closed |
Pins 1 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
3 |
Pins 2 & 4 closed |
Pins 2 & 4 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
FLASH BIOS SELECTION | |||
Setting |
JP34 |
JP35 | |
EPROM |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
5v flash |
Pins 2 & 3 closed |
Pins 1 & 2 closed | |
12v flash |
Pins 1 & 2 closed |
Pins 1 & 2 closed |