SOYO TECHNOLOGY CO., LTD.
SY-027 B2/B5
Processor | 80486SX/SL80486SX/CX486DX/U5/AM486DXL/80486DX/SL80486DX/ CX486DX2/AM486DX2/AM486DXL2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)100(internal)MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 64MB |
Cache | 128/256 |
BIOS | Award |
Dimensions | 220mm x 220mm |
I/O Options | 32-bit PCI slots (4), green PC connector |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
IDE interface | J1 | Turbo switch | J21 |
Power LED & keylock | J17 | Turbo LED | J22 |
Speaker | J18 | IDE interface LED | JP28 |
Reset switch | J19 | Green PC connector | JW6 |
External battery | J20 | 32-bit PCI slots | PCI1 - PCI4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | JP32 | Closed |
» | CMOS memory normal operation | JP33 | Open |
CMOS memory clear | JP33 | Closed | |
» | Factory configured - do not alter | JP65 | Open |
Note: The location of JP32 is unidentified. |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
2MB | (1) 512K x 36 | NONE |
4MB | (1) 512K x 36 | (1) 512K x 36 |
4MB | (1) 1M x 36 | NONE |
6MB | (1) 1M x 36 | (1) 512K x 36 |
8MB | (1) 1M x 36 | (1) 1M x 36 |
8MB | (1) 2M x 36 | NONE |
10MB | (1) 2M x 36 | (1) 512K x 36 |
12MB | (1) 2M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | (1) 2M x 36 |
16MB | (1) 4M x 36 | NONE |
18MB | (1) 4M x 36 | (1) 512K x 36 |
20MB | (1) 4M x 36 | (1) 1M x 36 |
24MB | (1) 4M x 36 | (1) 2M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 |
32MB | (1) 8M x 36 | NONE |
34MB | (1) 8M x 36 | (1) 512K x 36 |
36MB | (1) 8M x 36 | (1) 1M x 36 |
40MB | (1) 8M x 36 | (1) 2M x 36 |
48MB | (1) 8M x 36 | (1) 4M x 36 |
64MB | (1) 8M x 36 | (1) 8M x 36 |
CACHE CONFIGURATION | ||
Size | Bank 0 | TAG |
128KB | (4) 32K x 8 | (1) 8K x 8 |
256KB | (4) 64K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |
Size | JP26 |
128KB | Open |
256KB | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||||||
Type | JP6 | JP9 | JP10 | JP13 | JP23 | JP24 |
80486SX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
SL80486SX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
CX486DX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
U5 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 |
80486DX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
AM486DXL | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 |
SL80486DX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
CX486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
AM486DX2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
80486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
AM486DXL2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 |
SL80486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
AM486DX4 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
80486DX4 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
P24D | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
P24T | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
Note: Pins designated should be in closed position. |
CPU TYPE CONFIGURATION (CON’T) | ||||||
Type | JP52 | JP53 | JP54 | JP55 | JP56 | JP57 |
80486SX | Open | Open | Open | Open | Open | Open |
SL80486SX | Open | Open | Open | Open | 1 & 2 | Open |
CX486DX | 2 & 3 | Open | Open | 1 & 2 | 1 & 2 | 2 & 3 |
U5 | 3 & 4 | Open | Open | Open | 2 & 3 | Open |
80486DX | Open | Open | Open | Open | Open | Open |
AM486DXL | 3 & 4 | Open | Open | Open | 2 & 3 | Open |
SL80486DX | Open | Open | Open | Open | 1 & 2 | Open |
CX486DX2 | 2 & 3 | Open | Open | 1 & 2 | 1 & 2 | 2 & 3 |
AM486DX2 | Open | Open | Open | Open | Open | Open |
80486DX2 | Open | Open | Open | Open | Open | Open |
AM486DXL2 | 3 & 4 | Open | Open | Open | 2 & 3 | Open |
SL80486DX2 | Open | Open | Open | Open | 1 & 2 | Open |
AM486DX4 | Open | Open | Open | Open | Open | Open |
80486DX4 | Open | Open | Open | Open | 1 & 2 | Open |
P24D | Open | Closed | Closed | Open | 1 & 2 | Open |
P24T | 1 & 2 | Open | Open | 2 & 3 | 1 & 2 | 1 & 2 |
Note: Pins designated should be in closed position. |
CPU TYPE CONFIGURATION (CON’T) | ||||||
Type | JP58 | JP59 | JP60 | JP62 | JP63 | JP64 |
80486SX | Open | Open | Open | Open | 2 & 3 | 1 & 2 |
SL80486SX | 1 & 2 | 2 & 3, 4 & 5 | Open | Open | 2 & 3 | 3 &4 |
CX486DX | 2 & 3 | 1 & 2, 3 & 4 | Open | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
U5 | Open | Open | Open | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 |
80486DX | Open | Open | Open | 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
AM486DXL | Open | Open | Open | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
SL80486DX | 1 & 2 | 2 & 3, 4 & 5 | Open | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
CX486DX2 | 2 & 3 | 1 & 2, 3 & 4 | Open | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
AM486DX2 | Open | Open | Open | 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
80486DX2 | Open | Open | Open | 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
AM486DXL2 | Open | Open | Open | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
SL80486DX2 | 1 & 2 | 2 & 3, 4 & 5 | Open | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
AM486DX4 | Open | Open | Open | 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 |
80486DX4 | 1 & 2 | 2 & 3, 4 & 5 | Open | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
P24D | 1 & 2 | 2 & 3, 4 & 5 | Closed | 3 & 4 | 1 & 2, 3 & 4 | 3 &4 |
P24T | 1 & 2 | 2 & 3, 4 & 5 | Open | 2 & 3 | 1 & 2, 3 & 4 | 3 & 4, 5 & 6 |
Note: Pins designated should be in closed position. |
CPU SPEED CONFIGURATION | |
Speed | JP22 |
25MHz | pins 1 & 2 closed |
33MHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
40MHz | pins 1 & 2, 3 & 4 closed |
50iMHz | pins 1 & 2 closed |
50MHz | pins 5 & 6 closed |
66iMHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
75iMHz | pins 1 & 2 closed |
80iMHz | pins 1 & 2, 3 & 4 closed |
100iMHz | pins 5 & 6 closed |
CPU SPEED CONFIGURATION (AM486 ONLY) | |
Speed | JP61 |
2x | pins 2 & 3 closed |
3x | pins 1 & 2 closed |
CPU SPEED CONFIGURATION (80486DX4 ONLY) | |
Speed | JP51 |
2x | pins 2 & 3 closed |
2.5x | pins 1 & 2 closed |
3x | Open |