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# ACHME COMPUTER, INC.
MS-5128
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS AMI/Award
Dimensions 280mm x 220mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), cache slot, IR connector, USB
connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| Serial port 1 | CN1 | Speaker | J20 pins |
| | | | 7 - 10 |
|------------------+----------+------------------+-----------|
| Serial port 2 | CN2 | Turbo LED | J20 pins |
| | | | 12 & 13 |
|------------------+----------+------------------+-----------|
| Parallel port | CN3 | Turbo switch | J20 pins |
| | | | 15 - 17 |
|------------------+----------+------------------+-----------|
| Floppy drive | CN4 | Reset switch | J20 pins |
| interface | | | 19 & 20 |
|------------------+----------+------------------+-----------|
| IDE interface 2 | CN5 | IDE interface | J20 pins |
| | | LED | 21 & 22 |
|------------------+----------+------------------+-----------|
| IDE interface 1 | CN6 | Chassis fan | J21 |
| | | power | |
|------------------+----------+------------------+-----------|
| USB connector | CN7 | IR connector | JIR |
|------------------+----------+------------------+-----------|
| PS/2 mouse | CN8 | Green PC | JG2 |
| interface | | connector | |
|------------------+----------+------------------+-----------|
| PS/2 mouse port | CN9 | 32-bit PCI slots | PC1 - PC4 |
|------------------+----------+------------------+-----------|
| Power LED & | J20 pins | Cache slot | SL1 |
| keylock | 1 - 5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Jumper information unavailable | JP8 | Unidentified |
|---+---------------------------------+-------+--------------|
| | PS/2 IRQ12 mouse enabled | JP10 | Closed |
|---+---------------------------------+-------+--------------|
| | PS/2 IRQ12 mouse disabled | JP10 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 8MB | None | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | None | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | None | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | None | (2) 8M 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 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 128MB | None | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 136MB | (2) 1M x 36 | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 144MB | (2) 2M x 36 | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 160MB | (2) 4M x 36 | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 192MB | (2) 8M x 36 | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 |
|--------------+--------------------+------------------------|
| 256KB | (2) 32K x 32 | None |
|--------------+--------------------+------------------------|
| 512KB | (2) 32K x 32 | 256KB module installed |
|------------------------------------------------------------|
| Note: The size of the TAG chip is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Setting | JS1 |
|-------------------------------+----------------------------|
| SL1 installed | Closed |
|-------------------------------+----------------------------|
| SL1 not installed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| Speed | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
|--------+--------+--------+--------+--------+-------+-------|
| 120MHz | Off | On | Off | Off | On | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 133MHz | Off | On | Off | On | On | On |
|--------+--------+--------+--------+--------+-------+-------|
| 150MHz | Off | On | Off | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 166MHz | Off | On | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD/PENTIUM) |
|------------------------------------------------------------|
| Speed | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
|--------+--------+--------+--------+--------+-------+-------|
| 75MHz | Off | Off | Off | Off | On | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 90MHz | Off | Off | Off | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 100MHz | Off | Off | Off | Off | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 120MHz | Off | On | Off | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 133MHz | Off | On | Off | Off | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 150MHz | Off | On | On | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 166MHz | Off | On | On | Off | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 180MHz | Off | Off | On | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 200MHz | Off | Off | On | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JV1 | JV2 | JV3 |
|-----------------+------------------+--------------+--------|
| 2.8v - 2.9v | Open | 1 & 2, 4 & 5 | Open |
| (P55) | | | |
|-----------------+------------------+--------------+--------|
| 3.3v - 3.45v | 1 & 2, 3 & 4, 5 | 3 & 4 | Open |
| (STD/VR) | & 6 | | |
|-----------------+------------------+--------------+--------|
| 3.45v - 3.6v | 1 & 2, 3 & 4, 5 | 3 & 4 | Closed |
| (VRE) | & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+