(TXT) View Source
# DATAEXPERT CORPORATION
EXP8851
Device Type Mainboard
Processor CX 6X86/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 128MB
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS AMI
Dimensions 290mm x 220mm
I/O Options 32-bit PCI slots (4), green PC connector, VRM
connector
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN1 | Turbo LED | J4 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN2 | Parallel port | J5 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN3 | Green PC | JP19 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN4 | IDE interface | JP20 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN5 | CPU fan power | JP30 |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | 32-bit PCI slots | PC1 – |
| keylock | | | PC4 |
|-------------------+----------+------------------+----------|
| Speaker | J2 | VRM connector | VRM |
|-------------------+----------+------------------+----------|
| Reset switch | J3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Cache type select write back | JP10 | Open |
|---+-----------------------------------+-------+------------|
| | Cache type select write through | JP10 | Closed |
|---+-----------------------------------+-------+------------|
| » | CPU pipeline enabled | JP11 | Closed |
|---+-----------------------------------+-------+------------|
| | CPU pipeline disabled | JP11 | Open |
|---+-----------------------------------+-------+------------|
| » | AT bus CLK select PCICLK/4 | JP15 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | AT bus CLK select PCICLK/3 | JP15 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JP18 | Open |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP18 | Closed |
|---+-----------------------------------+-------+------------|
| » | Parallel port mode select | JP23 | Closed |
| | standard | | |
|---+-----------------------------------+-------+------------|
| | Parallel port mode select EPP | JP23 | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 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 | TAG |
|-----------+--------------+-------------+-------------------|
| 256KB (A) | (2) 32K x 32 | None | None |
|-----------+--------------+-------------+-------------------|
| 256KB (B) | None | (8) 32K x 8 | (1) 8K/16K/32K x |
| | | | 8 |
|-----------+--------------+-------------+-------------------|
| 512KB | None | (8) 64K x 8 | (1) 16K/32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 | JP13 | JP14 |
|-----------+----------------+---------------+---------------|
| 256KB (B) | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 512KB | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP5 | JP16 | JP17 |JP31|
|---------+-----------+----------+-------+-------+------+----|
| 120MHz | 50MHz | 2x |Closed | Open | Open |Open|
|---------+-----------+----------+-------+-------+------+----|
| 150MHz | 60MHz | 2x |Closed | Open |Closed|Open|
|---------+-----------+----------+-------+-------+------+----|
| 166MHz | 66MHz | 2x |Closed |Closed |Closed|Open|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP5 | JP16 | JP17 | JP31 |
| speed | speed | | | | | |
|--------+--------+------------+------+------+--------+------|
| 75MHz | 50MHz | 1.5x | Open | Open | Open | Open |
|--------+--------+------------+------+------+--------+------|
| 90MHz | 60MHz | 1.5x | Open | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP5 | JP16 | JP17 | JP31 |
|---------+-----------+----------+------+------+------+------|
| 75MHz | 50MHz | 1.5x | Open | Open | Open | Open |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Open | Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x | Open |Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |Closed| Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |Closed|Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |Closed| Open |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |Closed|Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Open |Closed|Closed|Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP27 | JP28 |
|------------------+--------------------+--------------------|
| 1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 3 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS SELECTION |
|------------------------------------------------------------|
| Setting | JP8 | JP9 |
|------------------+--------------------+--------------------|
| » | 5v flash | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 12v flash | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | EPROM | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IDE SELECTION |
|------------------------------------------------------------|
| Setting | JP21 | JP22 |
|----------------------+------------------+------------------|
| » | Normal operation | Pins 2 & 3 | Pins 2 & 3 |
| | | closed | closed |
|---+------------------+------------------+------------------|
| | Feature function | Pins 1 & 2 | Pins 1 & 2 |
| | | closed | closed |
+------------------------------------------------------------+