VEXTREC TECNHOLOGY, INC.
GMB-486UNP (VER. 3.01)
|
Processor |
CX486S(WB)/CX486S(WT)/CX486S2(WB)/CX486S2(WT)/80486SX/ 80487SX/CX486DX(WB)/CX486DX(WT)/CX486DX2(WB)/CX486DX2(WT)/80486DX/80486DX2/P24T |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
None |
|
Cache |
32/64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J2 |
Turbo switch |
J51 pins 15 - 17 |
|
Power LED & keylock |
J51 pins 1 - 5 |
Reset switch |
J51 pins 19 & 20 |
|
Speaker |
J51 pins 7 - 10 |
32-bit VESA local bus slots |
SL1 - SL3 |
|
Turbo LED |
J51 pins 12 & 13 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Monitor type select color |
JP32 |
Closed |
|
Monitor type select monochrome |
JP32 |
Open | |
|
|
CMOS memory normal operation |
JP33 |
Pins 1 & 2 closed |
|
CMOS memory clear |
JP33 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP74 |
Unidentified |
|
|
Factory configured - do not alter |
JP75 |
Unidentified |
|
|
Factory configured - do not alter |
JP76 |
Unidentified |
|
|
Factory configured - do not alter |
JP77 |
Unidentified |
|
|
VL-BUS clock adjust normal operation |
JP118 |
Pins 1 & 2 closed |
|
VL-BUS clock adjust reserved |
JP118 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP121 |
Unidentified |
|
|
Factory configured - do not alter |
JP122 |
Pins 1 & 2 closed |
|
|
Factory configured - do not alter |
JP123 |
Open |
|
|
Factory configured - do not alter |
JP124 |
Open |
|
|
Factory configured - do not alter |
JP125 |
Open |
|
|
Factory configured - do not alter |
JXN |
Pins 1 & 2 closed |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
None |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
None |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
None |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
None |
|
80MB |
(4) 16M x 9 |
(4) 4M x 9 |
|
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
32KB |
(4) 8K x 8 |
None |
(1) 8K x 8 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
None |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP5 |
JP7 |
JP58 |
|
32KB |
Open |
Open |
Pins 2 & 3 closed |
|
64KB |
Closed |
Open |
Pins 1 & 2 closed |
|
128KB |
Closed |
Closed |
Pins 1 & 2, 3 & 4 closed |
|
256KB |
Closed |
Closed |
Pins 1 & 2, 4 & 5 closed |
|
CPU SPEED SELECTION | |||
|
Speed |
JP34 |
JP35 |
JP36 |
|
25MHz |
Closed |
Open |
Closed |
|
33MHz |
Closed |
Closed |
Open |
|
40MHz |
Open |
Open |
Closed |
|
50iMHz |
Closed |
Open |
Closed |
|
50MHz |
Open |
Closed |
Open |
|
66iMHz |
Closed |
Closed |
Open |
|
CPU TYPE SELECTION | |||
|
Type |
JP25 |
JP28 |
JP30 |
|
CX486S (WB) |
Closed |
Open |
Pins 5 & 6 closed |
|
CX486S (WT) |
Closed |
Open |
Pins 5 & 6 closed |
|
CX486S2 (WB) |
Closed |
Open |
Pins 5 & 6 closed |
|
CX486S2 (WT) |
Closed |
Open |
Pins 5 & 6 closed |
|
80486SX (PQFP) |
Open |
Open |
Open |
|
80486SX (PGA) |
Closed |
Open |
Pins 5 & 6 closed |
|
80487SX |
Closed |
Open |
Pins 1 & 2, 4 & 5, 6 & 7 closed |
|
CX486DX (WB) |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
CX486DX (WT) |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
CX486DX2 (WB) |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
CX486DX2 (WT) |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
80486DX |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
80486DX2 |
Closed |
Open |
Pins 2 & 3, 4 & 5, 6 & 7 closed |
|
P24T |
Closed |
Open |
Pins 1 & 2, 4 & 5, 6 & 7 closed |
|
CPU TYPE SELECTION (CONT) | ||||
|
Type |
JP70 |
JP72 |
JP80 |
JP120 |
|
CX486S (WB) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Open |
|
CX486S (WT) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Open |
|
CX486S2 (WB) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Closed |
|
CX486S2 (WT) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
|
80486SX (PQFP) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
80486SX (PGA) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
80487SX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
CX486DX (WB) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Open |
|
CX486DX (WT) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Open |
|
CX486DX2 (WB) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Closed |
|
CX486DX2 (WT) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
|
80486DX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
80486DX2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
P24T |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |