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# MICRONICS COMPUTERS, INC.
M54HI, M54HI (REV. 2A)
Processor Pentium
Processor 75/90/100/120MHz
Speed
Chip Set Unidentified
Max. Onboard 128MB
DRAM
Cache 256/512KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface, IDE
interfaces (2), parallel port, PS/2 mouse port,
serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| IDE interface | J6 | Speaker | J33 |
| (secondary) | | | |
|--------------------+----------+-----------------+----------|
| IDE interface | J7 | IDE interface | J34 |
| (primary) | | LED | |
|--------------------+----------+-----------------+----------|
| Parallel port | J12 | Power LED & | J35 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| Serial port 1 | J13 | PS/2 mouse port | J38 |
|--------------------+----------+-----------------+----------|
| Serial port 2 | J14 | Turbo LED | J39 |
|--------------------+----------+-----------------+----------|
| Floppy drive | J15 | 32-bit PCI | PC1 - |
| interface | | slots | PC4 |
|--------------------+----------+-----------------+----------|
| Reset switch | J32 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J1 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J37 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | BIOS boot block select normal | W10 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS boot block select reversed | W10 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Flash BIOS write protect enabled | W11 | Open |
|---+----------------------------------+--------+------------|
| | Flash BIOS write protect | W11 | Closed |
| | disabled | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | W12 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | W12 | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | W16 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | W16 | Open |
|---+----------------------------------+--------+------------|
| » | PS/2 mouse not installed | W17 | Open |
|---+----------------------------------+--------+------------|
| | PS/2 mouse installed | W17 | Closed |
|------------------------------------------------------------|
| Note: The location of J1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W8 | W9 | W24 |
|-------+-----------------+-----------------+----------------|
| None | pins 1 & 2 | pins 1 & 2 | Open |
| | closed | closed | |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|------------------------------------------------------------|
| Note: The location of W24 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE TYPE CONFIGURATION |
|------------------------------------------------------------|
| Setting | W6 | W7 |
|------------------+--------------------+--------------------|
| Pipeline burst | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Asynchronous | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Burst | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | W4 | W5 | W30 |
|-------------+-------------+------------+-------------------|
| 75MHz | Closed | Closed | pins 1 & 2 closed |
|-------------+-------------+------------+-------------------|
| 90MHz | Open | Closed | pins 2 & 3 closed |
|-------------+-------------+------------+-------------------|
| 100MHz | Closed | Open | pins 2 & 3 closed |
|-------------+-------------+------------+-------------------|
| 120MHz | Open | Closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED RATIO CONFIGURATION |
|------------------------------------------------------------|
| Speed | W2 |
|------------------------------+-----------------------------|
| 1.5x | Open |
|------------------------------+-----------------------------|
| 2x | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VRE CONFIGURATION |
|------------------------------------------------------------|
| Setting | W3 |
|-------------------------------+----------------------------|
| VR | Open |
|-------------------------------+----------------------------|
| VRE | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | W18 | W19 |
|------------------+--------------------+--------------------|
| None | Open | Open |
|------------------+--------------------+--------------------|
| DMA1 | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| DMA3 | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+