ADDTECH RESEARCH, INC.
4GLX3
Processor | CX486S/80486SX/80487SX/CX486DX/AMD486DX/80486DX/80486DX2/ 80486DX4/Pentium Overdrive |
Processor Speed | 25/33/40(internal)/50(internal)/50/66(internal)/100(internal)MHz |
Chip Set | Cypress |
Max. Onboard DRAM | 128MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | JP10 | External battery | JP17 |
Speaker | JP11 | Turbo switch | JP95 |
Power LED & keylock | JP13 | 32-bit VESA Local bus slots | SL1 & SL2 |
Reset switch | JP15 |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CPU type select Intel/AMD | JP2A | pins 1 & 2 closed |
| CPU type select Cyrix | JP2A | pins 2 & 3 closed |
» | CPU type select PGA | JP12 | Closed |
| CPU type select PQFP | JP12 | Open |
» | CMOS memory normal operation | JP16 | pins 1 & 2 closed |
| CMOS memory clear | JP16 | pins 2 & 3 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 |
5MB | (4) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 256K x 9 | (4) 4M x 9 |
17MB | (4) 4M x 9 | (4) 256K x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE |
65MB | (4) 256K x 9 | (4) 16M x 9 |
65MB | (4) 16M x 9 | (4) 256K x 9 |
68MB | (4) 1M x 9 | (4) 16M x 9 |
68MB | (4) 16M x 9 | (4) 1M x 9 |
80MB | (4) 4M x 9 | (4) 16M x 9 |
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 |
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 | JP7 | JP8 |
64KB | pins 2 & 3 closed | pins 2 & 4 closed |
128KB | pins 1 & 2 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | |||
Type | JP2 | JP3 | JP4 |
80486SX (PQFP) | Open | Open | Open |
80486SX (PGA) | pins 2 & 3 closed | Open | Open |
80487SX | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | Closed |
80486DX/DX2 | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed | Open |
DX4/Overdrive | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | Closed |
Note: This mainboard was manufactured with either a PQFP socket or a PGA ZIF socket. |
CPU SPEED CONFIGURATION | ||||||||
Speed | ID3 | JP5 | JP5A | JP33 | JP36 | JP37 | JP38 | JP72 |
25MHz | Open | 2 & 3 | 4 & 5 | 2 & 4 | Closed | 1 & 2 | 2 & 3 | Closed |
33MHz | Open | 2 & 3 | 4 & 5 | 2 & 4 | Closed | 2 & 3 | 1 & 2 | Open |
40MHz | Closed | 1 & 2 | 3 & 5 | 2 & 3 | Open | 1 & 2 | 2 & 3 | Open |
50iMHz | Open | 2 & 3 | 4 & 5 | 2 & 4 | Closed | 1 & 2 | 2 & 3 | Closed |
50MHz | Closed | 1 & 2 | N/A | 1 & 2 | Open | 2 & 3 | 1 & 2 | Open |
66iMHz | Open | 2 & 3 | 4 & 5 | 2 & 4 | Closed | 2 & 3 | 1 & 2 | Open |
100iMHz | Open | 2 & 3 | 4 & 5 | 2 & 4 | Closed | 2 & 3 | 1 & 2 | Open |
Note: Pins designated should be in the closed position. JP5 corresponds to PGA ZIF socket & JP5A corresponds to PQFP socket. |
VESA WAIT STATE CONFIGURATION | |
Wait states | ID2 |
0 wait states | Open |
1 wait state | Closed |