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# GIGA-BYTE TECHNOLOGY CO., LTD.
GA-5486AL
Processor 80486DX/IBMDX2/CX486DX2/80486DX2/AM486DX4/ST486DX4/80486DX4/ P24D/Pentium
Overdrive/AM5X86/CX5X86
Processor 25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)/
Speed 120(internal)/133(internal)MHz
Chip Set ALI
Max. 128MB
Onboard
DRAM
Cache 128/256/512KB
BIOS Award
Dimensions 220mm x 210mm
I/O 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE
Options interfaces (2), parallel port, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN1 | IDE interface | J2 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | Reset switch | J3 |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | Turbo switch | J4 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | Green PC LED | J5 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN5 | Speaker | J6 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN6 | Power LED & | J7 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Green PC | J1 | 32-bit PCI slots | PC1 - |
| connector | | | PC3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+---------+----------|
| » | Factory configured - do not alter | JP3 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 512K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 2M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 512K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 512K x | (1) 8M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 8M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+---------------+---------------+---------+---------|
| 64MB | (1) 16M x 36 | NONE | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 66MB | (1) 16M x 36 | (1) 512K x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 66MB | (1) 512K x 36 | (1) 16M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 72MB | (1) 16M x 36 | (1) 2M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 72MB | (1) 2M x 36 | (1) 16M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 96MB | (1) 16M x 36 | (1) 8M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 96MB | (1) 8M x 36 | (1) 16M x 36 | NONE | NONE |
|--------+---------------+---------------+---------+---------|
| 128MB | (1) 16M x 36 | (1) 16M x 36 | NONE | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 16K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP4 |
|----------------------------+-------------------------------|
| 128KB | Open |
|----------------------------+-------------------------------|
| 256KB | pins 2 & 4 closed |
|----------------------------+-------------------------------|
| 512KB | pins 1 & 3, 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J9 | JP11 | JP12 | JP13 |
|----------------+------------+--------+--------+------------|
| 80486DX-33 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| IBM DX2 | pins 1 & 2 | Open | Closed | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| CX486DX2-66 | pins 1 & 2 | Open | Closed | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| 80486DX2-66 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| CX486DX4-100 | pins 1 & 2 | Open | Closed | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| AM486DX4-100 | pins 1 & 2 | Closed | Open | pins 3 & 4 |
| (NV8T) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| AM486DX4-100 | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| (SV8B) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| AM486DX4-120 | pins 2 & 3 | Closed | Open | pins 3 & 4 |
| (NV8T) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| AM486DX4-120 | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| (SV8B) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| ST486DX4-100 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| 80486DX4-75 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| (3v) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| 80486DX4-75 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| (5v) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| 80486DX4-100 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| (3v) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| 80486DX4-100 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| (5v) | closed | | | closed |
|----------------+------------+--------+--------+------------|
| P24D | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| P24T 63WB | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| P24T 83WB | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| AM5X86-P75 | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| CX5X86-100 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| CX5X86-120 | pins 2 & 3 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
|----------------+------------+--------+--------+------------|
| CX5X86-133 | pins 1 & 2 | Closed | Open | pins 1 & 2 |
| | closed | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP14 | JP15 | JP16 |
|-----------------+----------------+----------------+--------|
| 80486DX-33 | pins 3 & 6 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| IBM DX2 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| CX486DX2-66 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| 80486DX2-66 | pins 3 & 6 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| CX486DX4-100 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| AM486DX4-100 | pins 2 & 5 | pins 1 & 2 | Open |
| (NV8T) | closed | closed | |
|-----------------+----------------+----------------+--------|
| AM486DX4-100 | pins 2 & 5 | pins 1 & 2 | Open |
| (SV8B) | closed | closed | |
|-----------------+----------------+----------------+--------|
| AM486DX4-120 | pins 2 & 5 | pins 1 & 2 | Open |
| (NV8T) | closed | closed | |
|-----------------+----------------+----------------+--------|
| AM486DX4-120 | pins 2 & 5 | pins 1 & 2 | Open |
| (SV8B) | closed | closed | |
|-----------------+----------------+----------------+--------|
| ST486DX4-100 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| 80486DX4-75 | pins 2 & 5 | pins 1 & 2 | Open |
| (3v) | closed | closed | |
|-----------------+----------------+----------------+--------|
| 80486DX4-75 | pins 3 & 6 | pins 1 & 2 | Closed |
| (5v) | closed | closed | |
|-----------------+----------------+----------------+--------|
| 80486DX4-100 | pins 2 & 5 | pins 1 & 2 | Open |
| (3v) | closed | closed | |
|-----------------+----------------+----------------+--------|
| 80486DX4-100 | pins 3 & 6 | pins 1 & 2 | Closed |
| (5v) | closed | closed | |
|-----------------+----------------+----------------+--------|
| P24D | pins 3 & 6 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| P24T 63WB | pins 3 & 6 | pins 1 & 2 | Closed |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| P24T 83WB | pins 3 & 6 | pins 1 & 2 | Closed |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| AM5X86-P75 | pins 2 & 5 | pins 2 & 3 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| CX5X86-100 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| CX5X86-120 | pins 2 & 5 | pins 1 & 2 | Open |
| | closed | closed | |
|-----------------+----------------+----------------+--------|
| CX5X86-133 | pins 2 & 5 | pins 2 & 3 | Open |
| | closed | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP17 | RN3 | RN4 |
|---------------+------------+---------------+---------------|
| 80486DX-33 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| IBM DX2 | pins 2 & 3 | Not installed | Installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| CX486DX2-66 | pins 2 & 3 | Not installed | Installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| 80486DX2-66 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| CX486DX4-100 | pins 2 & 3 | Not installed | Installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| AM486DX4-100 | pins 1 & 2 | Installed | Not installed |
| (NV8T) | closed | | |
|---------------+------------+---------------+---------------|
| AM486DX4-100 | pins 1 & 2 | Installed | Not installed |
| (SV8B) | closed | | |
|---------------+------------+---------------+---------------|
| AM486DX4-120 | pins 1 & 2 | Installed | Not installed |
| (NV8T) | closed | | |
|---------------+------------+---------------+---------------|
| AM486DX4-120 | pins 1 & 2 | Installed | Not installed |
| (SV8B) | closed | | |
|---------------+------------+---------------+---------------|
| ST486DX4-100 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| 80486DX4-75 | pins 2 & 3 | Installed | Not installed |
| (3v) | closed | | |
|---------------+------------+---------------+---------------|
| 80486DX4-75 | pins 2 & 3 | Installed | Not installed |
| (5v) | closed | | |
|---------------+------------+---------------+---------------|
| 80486DX4-100 | pins 2 & 3 | Installed | Not installed |
| (3v) | closed | | |
|---------------+------------+---------------+---------------|
| 80486DX4-100 | pins 2 & 3 | Installed | Not installed |
| (5v) | closed | | |
|---------------+------------+---------------+---------------|
| P24D | pins 1 & 2 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| P24T 63WB | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| P24T 83WB | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| AM5X86-P75 | pins 1 & 2 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| CX5X86-100 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| CX5X86-120 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
|---------------+------------+---------------+---------------|
| CX5X86-133 | pins 2 & 3 | Installed | Not installed |
| | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP7 | JP8 | JP9 | JP10 |
|---------+---------------+------------+------------+--------|
| 25MHz | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 33MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 40MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | Closed |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 50iMHz | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 66iMHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 75iMHz | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 80iMHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | Closed |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 100iMHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | Open |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 120iMHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | Closed |
| | closed | closed | closed | |
|---------+---------------+------------+------------+--------|
| 133iMHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | Open |
| | closed | closed | closed | |
+------------------------------------------------------------+