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# A-TREND TECHNOLOGY CORPORATION
ATC-5020+
Device Type Mainboard
Processor CX 6X86L/CX 6X86MX/AM K5/AM
K6/Pentium/Pentium MMX
Processor Speed 120/133/150/166/180/200/233MHz
Chip Set Intel 430TX
Maximum Onboard 256MB (EDO & SDRAM supported)
Memory
Cache 512KB
BIOS Award
Dimensions 305mm x 210mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), IR connector, USB connectors (2), ATX
power connector
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+-------------+-----------------+-----------|
| ATX power | ATX | Parallel port | CN3 |
| connector | | | |
|----------------+-------------+-----------------+-----------|
| Reset switch | C1/pins 1 & | USB connector 1 | CN4 |
| | 2 | | |
|----------------+-------------+-----------------+-----------|
| Green PC | C1/pins 4 & | USB connector 2 | CN5 |
| connector | 5 | | |
|----------------+-------------+-----------------+-----------|
| Turbo LED | C1/pins 7 & | PS/2 mouse port | CN6 |
| | 8 | | |
|----------------+-------------+-----------------+-----------|
| IDE interface | C1/pins 10 | Floppy drive | CN7 |
| LED | & 11 | interface | |
|----------------+-------------+-----------------+-----------|
| Speaker | C1/pins 13 | IDE interface 2 | CN8 |
| | - 16 | | |
|----------------+-------------+-----------------+-----------|
| Power LED & | C1/pins 18 | IDE interface 1 | CN9 |
| keylock | & 20 | | |
|----------------+-------------+-----------------+-----------|
| Chassis fan | C2 | IR connector | IR1 |
| power | | | |
|----------------+-------------+-----------------+-----------|
| Serial port 1 | CN1 | Soft off power | J1 |
| | | supply | |
|----------------+-------------+-----------------+-----------|
| Serial port 2 | CN2 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | JP7 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP8 | Closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP8 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 2 | Bank 3 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 128MB | (1) 16M x 64 | None |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 150MHz | 60MHz | 2x | 2 & 3, 4 | 1 & 2 | 2 & 3 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2x | 2 & 3, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 75MHz | 2x | 2 & 3, 4 | 2 & 3 | 1 & 2 |
| | | | & 5 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 150MHz | 60MHz | 2x | 2 & 3, 4 | 1 & 2 | 2 & 3 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2x | 2 & 3, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 60MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 2 & 3 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 66MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 75MHz | 2x | 2 & 3, 4 | 2 & 3 | 1 & 2 |
| | | | & 5 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 100MHz | 66MHz | 1.5x | 1 & 2, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 120MHz | 60MHz | 1.5x | 1 & 2, 4 | 1 & 2 | 2 & 3 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 133MHz | 66MHz | 1.5x | 1 & 2, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 66MHz | 3x | 1 & 2, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 233MHz | 66MHz | 3.5x | 1 & 2, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 120MHz | 60MHz | 2x | 2 & 3, 4 | 1 & 2 | 2 & 3 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 133MHz | 66MHz | 2x | 2 & 3, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|----------+---------+------------+----------+-------+-------|
| 150MHz | 60MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 2 & 3 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 180MHz | 60MHz | 3x | 1 & 2, 5 | 1 & 2 | 2 & 3 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 66MHz | 3x | 1 & 2, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+----------+-------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 200MHz | 66MHz | 3x | 1 & 2, 5 | 1 & 2 | 1 & 2 |
| | | | & 6 | | |
|----------+---------+------------+----------+-------+-------|
| 233MHz | 66MHz | 3.5x | 1 & 2, 4 | 1 & 2 | 1 & 2 |
| | | | & 5 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP2 |
|----------------------------+-------------------------------|
| AM K5 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| AM K6 | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| AM K6-233 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| CX 6X86L | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| CX 6X86MX | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| Intel MMX | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| Intel STD | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| Intel VRE | Pins 1 & 2 closed |
+------------------------------------------------------------+