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# GMX, INC.
ESA-MB
Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor 33/66(internal)MHz
Speed
Chip Set National/INTEL
Max. Onboard 256MB
DRAM
SRAM Cache 64/128 (optional on CPU card only)
BIOS AMI (located on CPU card)
Dimensions 307.34mm x 330.20mm
I/O Options Floppy drive interface, IDE interface, parallel
port,
proprietary CPU card, serial port (2)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| 8-bit ISA slot | J9 | Serial port | P7 |
| | | (COM2) | |
|---------------------+----------+----------------+----------|
| Proprietary CPU | J10 | Speaker | P10 |
| card | | | |
|---------------------+----------+----------------+----------|
| Keyboard interface | P1 | Turbo Switch | P11 |
|---------------------+----------+----------------+----------|
| Floppy drive | P2 | Power LED & | P12 |
| interface | | keylock | |
|---------------------+----------+----------------+----------|
| IDE interface | P3 | IDE interface | P13 |
| | | LED | |
|---------------------+----------+----------------+----------|
| Auxiliary power | P4 | Reset switch | P14 |
| connector | | | |
|---------------------+----------+----------------+----------|
| Parallel port | P5 | Lockable reset | P15 |
| | | switch | |
|---------------------+----------+----------------+----------|
| Serial port (COM1) | P6 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-----------------------------------+--------+---------------|
| » | IDE interface select IORDY at | JA-2 | pins 2 & 4 |
| | pin 21 | | closed |
|---+-------------------------------+--------+---------------|
| | IDE interface select IORDY at | JA-2 | pins 4 & 6 |
| | pin 27 | | closed |
|---+-------------------------------+--------+---------------|
| » | Watchdog strobe select 1.8MHz | JA-4 | pins 5 & 6 |
| | clock | | closed |
|---+-------------------------------+--------+---------------|
| | Watchdog strobe select host | JA-4 | pins 3 & 4 |
| | address strobe | | closed |
|---+-------------------------------+--------+---------------|
| | Watchdog strobe select signal | JA-4 | pins 1 & 2 |
| | watchdog | | closed |
|---+-------------------------------+--------+---------------|
| » | IDE interface address latch | JA-5 | Closed |
| | enabled at IDE pin 28 | | |
|---+-------------------------------+--------+---------------|
| | IDE interface address select | JA-5 | Open |
| | spindle sync at IDE pin 28 | | |
|---+-------------------------------+--------+---------------|
| » | ISA bus select 0 wait state | JA-7 | pins 1 & 3 |
| | | | open |
|---+-------------------------------+--------+---------------|
| | ISA bus select 1 wait state | JA-7 | pins 1 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | Posted memory write cycles | JA-7 | pins 2 & 4 |
| | enabled | | closed |
|---+-------------------------------+--------+---------------|
| | Posted memory write cycles | JA-7 | pins 2 & 4 |
| | disabled | | open |
|---+-------------------------------+--------+---------------|
| » | Factory configured - do not | JA-8 & | N/A |
| | alter | JA-9 | |
|---+-------------------------------+--------+---------------|
| » | Keyboard buffer full | JA-10 | pins 2 & 3 |
| | interrupts from keyboard | | closed |
| | controller | | |
|---+-------------------------------+--------+---------------|
| | Keyboard buffer full | JA-10 | pins 1 & 2 |
| | interrupts from 82351 at IRQ1 | | closed |
|---+-------------------------------+--------+---------------|
| » | Address enable active on slot | JA-11 | pins 1 & 2 |
| | 0 & slot 8 (J9) | | closed |
|---+-------------------------------+--------+---------------|
| | Address enable active on slot | JA-11 | pins 1 & 2 |
| | 8 (J9) only | | open |
|---+-------------------------------+--------+---------------|
| | . Factory configured - do | JA-12 | N/A |
| | not alter | | |
|---+-------------------------------+--------+---------------|
| » | Factory configured - do not | JA-13 | N/A |
| | alter | | |
|---+-------------------------------+--------+---------------|
| » | Memory speed select speed 1 | JA-14 | pins 1 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | Memory speed select speed 0 | JA-14 | pins 2 & 4 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | CMOS memory normal operation | JA-15 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | CMOS memory clear | JA-15 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | Floppy drive select 2 drives | JA-17 | Open |
|---+-------------------------------+--------+---------------|
| | Floppy drive select 3 drives | JA-17 | pins 1 & 2, 3 |
| | | | & 4 closed |
|---+-------------------------------+--------+---------------|
| » | UART type 16550 | JA18 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | UART type 16540 | JA18 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | IDE interface select National | JA-19 | pins 1 & 2 |
| | chipset | | closed |
|---+-------------------------------+--------+---------------|
| | IDE interface Intel chipset | JA-19 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | Floppy drive select National | JA--20 | pins 1 & 2 |
| | chipsey | | closed |
|---+-------------------------------+--------+---------------|
| | Floppy drive select Intel | JA-20 | pins 2 & 3 |
| | chipset | | closed |
|---+-------------------------------+--------+---------------|
| » | Keylock disabled | JA-21 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | Keylock enabled | JA-21 | pins 1 & 2 |
| | | | closed |
|------------------------------------------------------------|
| Note:SW1 & SW2 are software dependent. |
+------------------------------------------------------------+
+----------------------------------------------------------------------------------+
| DRAM CONFIGURATION |
|----------------------------------------------------------------------------------|
| Size | Bank0 | Bank1 | Bank2 | Bank3 | Bank4 | Bank5 | Bank6 | Bank7 |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 1MB | 256K | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 2MB | 256K | 256K | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 2MB | 512K | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 3MB | 256K | 256K | 256K | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 4MB | 256K | 256K | 256K | 256K | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 4MB | 512K | 512K | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 4MB | 1M | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 5MB | 256K | 256K | 256K | 256K | 256K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 6MB | 256K | 256K | 256K | 256K | 256K | 256K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 6MB | 256K | 256K | 256K | 256K | 512K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 6MB | 512K | 512K | 512K | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 7MB | 256K | 256K | 256K | 256K | 256K | 256K | 256K | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 256K | 256K | 256K | 256K | 256K | 256K | 256K | 256K |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 256K | 256K | 256K | 256K | 512K | 512K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 256K | 256K | 256K | 256K | 1M | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 512K | 512K | 512K | 512K | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 1M | 1M | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 8MB | 2M | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 9MB | 512K | 512K | 512K | 512K | 256K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 10MB | 512K | 512K | 512K | 512K | 256K | 256K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 10MB | 512K | 512K | 512K | 512K | 512K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 11MB | 512K | 512K | 512K | 512K | 256K | 256K | 256K | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 12MB | 512K | 512K | 512K | 512K | 256K | 256K | 256K | 256K |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 12MB | 512K | 512K | 512K | 512K | 512K | 512K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 12MB | 512K | 512K | 512K | 512K | 1M | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 12MB | 1M | 1M | 1M | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 14MB | 512K | 512K | 512K | 512K | 512K | 512K | 512K | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 512K | 512K | 512K | 512K | 512K | 512K | 512K | 512K |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 512K | 512K | 512K | 512K | 1M | 1M | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 512K | 512K | 512K | 512K | 2M | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 1M | 1M | 1M | 1M | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 2M | 2M | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 16MB | 4M | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 17MB | 1M | 1M | 1M | 1M | 256K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 18MB | 1M | 1M | 1M | 1M | 256K | 256K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 18MB | 1M | 1M | 1M | 1M | 512K | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 19MB | 1M | 1M | 1M | 1M | 256K | 256K | 256K | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 20MB | 1M | 1M | 1M | 1M | 256K | 256K | 256K | 256K |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 20MB | 1M | 1M | 1M | 1M | 512K | 512K | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 20MB | 1M | 1M | 1M | 1M | 1M | NONE | NONE | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 22MB | 1M | 1M | 1M | 1M | 512K | 512K | 512K | NONE |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 24MB | 1M | 1M | 1M | 1M | 512K | 512K | 512K | 512K |
|--------+---------+---------+--------+--------+--------+--------+--------+--------|
| 24MB | 1M | 1M | 1M | 1M | 1M | 1M | NONE | NONE |
|----------------------------------------------------------------------------------|
| +---------------------------------------------------------------------------+|
| | DRAM CONFIGURATION (CONTINUED) ||
| |---------------------------------------------------------------------------||
| | Size | Bank0 | Bank1 | Bank2 | Bank3 | Bank4 | Bank5 | Bank6 | Bank7 ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 24MB | 1M | 1M | 1M | 1M | 2M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 24MB | 2M | 2M | 2M | NONE | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 28MB | 1M | 1M | 1M | 1M | 1M | 1M | 1M | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 1M | 1M | 1M | 1M | 2M | 2M | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 1M | 1M | 1M | 1M | 4M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 4M | 4M | NONE | NONE | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 8M | NONE | NONE | NONE | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 32MB | 2M | 2M | 2M | 2M | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 33MB | 2M | 2M | 2M | 2M | 256K | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 34MB | 2M | 2M | 2M | 2M | 256K | 256K | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 34MB | 2M | 2M | 2M | 2M | 512K | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 35MB | 2M | 2M | 2M | 2M | 256K | 256K | 256K | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 36MB | 2M | 2M | 2M | 2M | 256K | 256K | 256K | 256K ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 36MB | 2M | 2M | 2M | 2M | 512K | 512K | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 36MB | 2M | 2M | 2M | 2M | 1M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 38MB | 2M | 2M | 2M | 2M | 512K | 512K | 512K | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 40MB | 2M | 2M | 2M | 2M | 512K | 512K | 512K | 512K ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 40MB | 2M | 2M | 2M | 2M | 1M | 1M | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 40MB | 2M | 2M | 2M | 2M | 2M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 44MB | 2M | 2M | 2M | 2M | 1M | 1M | 1M | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 48MB | 2M | 2M | 2M | 2M | 1M | 1M | 1M | 1M ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 48MB | 2M | 2M | 2M | 2M | 2M | 2M | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 48MB | 2M | 2M | 2M | 2M | 4M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 48MB | 4M | 4M | 4M | NONE | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 56MB | 2M | 2M | 2M | 2M | 2M | 2M | 2M | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 64MB | 2M | 2M | 2M | 2M | 2M | 2M | 2M | 2M ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 64MB | 2M | 2M | 2M | 2M | 4M | 4M | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 64MB | 2M | 2M | 2M | 2M | 8M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 64MB | 4M | 4M | 4M | 4M | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 64MB | 8M | 8M | NONE | NONE | NONE | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 65MB | 4M | 4M | 4M | 4M | 256K | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 66MB | 4M | 4M | 4M | 4M | 256K | 256K | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 66MB | 4M | 4M | 4M | 4M | 512K | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 67MB | 4M | 4M | 4M | 4M | 256K | 256K | 256K | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 68MB | 4M | 4M | 4M | 4M | 256K | 256K | 256K | 256K ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 68MB | 4M | 4M | 4M | 4M | 512K | 512K | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 68MB | 4M | 4M | 4M | 4M | 1M | NONE | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 70MB | 4M | 4M | 4M | 4M | 512K | 512K | 512K | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 72MB | 4M | 4M | 4M | 4M | 512K | 512K | 512K | 512K ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 72MB | 4M | 4M | 4M | 4M | 1M | 1M | NONE | NONE ||
| |-------+--------+--------+--------+--------+-------+-------+-------+-------||
| | 72MB | 4M | 4M | 4M | 4M | 2M | NONE | NONE | NONE ||
| |---------------------------------------------------------------------------||
| | +-----------------------------------------------------------------------+ ||
| | | DRAM CONFIGURATION (CONTINUED) | ||
| | |-----------------------------------------------------------------------| ||
| | | Size | Bank0 | Bank1 | Bank2 | Bank3 | Bank4 | Bank5 | Bank6 | Bank7 | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 80MB | 4M | 4M | 4M | 4M | 2M | 2M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 80MB | 4M | 4M | 4M | 4M | 4M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 88MB | 4M | 4M | 4M | 4M | 2M | 2M | 2M | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 96MB | 4M | 4M | 4M | 4M | 4M | 4M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 96MB | 4M | 4M | 4M | 4M | 8M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 96MB | 4M | 4M | 4M | 4M | 2M | 2M | 2M | 2M | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 96MB | 8M | 8M | 8M | NONE | NONE | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 128MB | 8M | 8M | 8M | 8M | NONE | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 128MB | 4M | 4M | 4M | 4M | 8M | 8M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 129MB | 8M | 8M | 8M | 8M | 256K | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 130MB | 8M | 8M | 8M | 8M | 256K | 256K | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 130MB | 8M | 8M | 8M | 8M | 512K | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 131MB | 8M | 8M | 8M | 8M | 256K | 256K | 256K | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 132MB | 8M | 8M | 8M | 8M | 256K | 256K | 256K | 256K | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 132MB | 8M | 8M | 8M | 8M | 512K | 512K | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 132MB | 8M | 8M | 8M | 8M | 1M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 134MB | 8M | 8M | 8M | 8M | 512K | 512K | 512K | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 136MB | 8M | 8M | 8M | 8M | 512K | 512K | 512K | 512K | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 136MB | 8M | 8M | 8M | 8M | 1M | 1M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 136MB | 8M | 8M | 8M | 8M | 2M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 140MB | 8M | 8M | 8M | 8M | 1M | 1M | 1M | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 144MB | 8M | 8M | 8M | 8M | 1M | 1M | 1M | 1M | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 144MB | 8M | 8M | 8M | 8M | 2M | 2M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 144MB | 8M | 8M | 8M | 8M | 4M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 152MB | 8M | 8M | 8M | 8M | 2M | 2M | 2M | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 160MB | 8M | 8M | 8M | 8M | 2M | 2M | 2M | 2M | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 160MB | 8M | 8M | 8M | 8M | 4M | 4M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 160MB | 8M | 8M | 8M | 8M | 8M | NONE | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 176MB | 8M | 8M | 8M | 8M | 4M | 4M | 4M | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 192MB | 8M | 8M | 8M | 8M | 4M | 4M | 4M | 4M | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 192MB | 8M | 8M | 8M | 8M | 8M | 8M | NONE | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 224MB | 8M | 8M | 8M | 8M | 8M | 8M | 8M | NONE | ||
| | |-------+-------+-------+-------+-------+-------+-------+-------+-------| ||
| | | 256MB | 8M | 8M | 8M | 8M | 8M | 8M | 8M | 8M | ||
| | |-----------------------------------------------------------------------| ||
| | | Note: The 512K x 36, 2M x 36, and 8M x 36 SIMMs are double-sided | ||
| | | SIMMs. | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | FLOPPY DRIVE 0 CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | A: | JA-1/pins 2 & 4 | ||
| | |----------------------------------+------------------------------------| ||
| | | 3.5" | Closed | ||
| | |----------------------------------+------------------------------------| ||
| | | 5.25" | Open | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | FLOPPY DRIVE 1 CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | B: | JA-1/pins 1 & 3 | ||
| | |----------------------------------+------------------------------------| ||
| | | 3.5" | Closed | ||
| | |----------------------------------+------------------------------------| ||
| | | 5.25" | Open | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | FLOPPY DRIVE POWER CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | Drive Type | RP3 | ||
| | |------------------------------------+----------------------------------| ||
| | | Normal 3.5" | 150 W | ||
| | |------------------------------------+----------------------------------| ||
| | | Low power 3.5" | 1K W | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | IDE INTERFACE I/O READY SIGNAL CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | IORDY | JA-2/pins 2, 4, & 6 | ||
| | |-----------------------------------------+-----------------------------| ||
| | | At pin 21 of IDE interface | pins 2 & 4 closed | ||
| | |-----------------------------------------+-----------------------------| ||
| | | At pin 27 of IDE interface | pins 4 & 6 closed | ||
| | |-----------------------------------------------------------------------| ||
| | | Note:If the hard drive has the IORDY signal at at both pins then | ||
| | | either configuration will work. | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | IDE INTERFACE DMA CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | DMA | JA-2/pins 1 & 2 | JA-2/pins 3 & 5 | JA-6 & JA-16 | ||
| | |------------+-------------------+-------------------+------------------| ||
| | | DMA6 | Closed | Closed | pins 1 & 2 | ||
| | | | | | closed | ||
| | |------------+-------------------+-------------------+------------------| ||
| | | Disabled | Open | Open | pins 2 & 3 | ||
| | | | | | closed | ||
| | |-----------------------------------------------------------------------| ||
| | | Note:If the drive supports DMA then the IORDY signal must be at pin | ||
| | | 27 of the IDE interface. | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | WATCHDOG TIMER CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | Timeout Minimum | Timeout Typical | Timeout Maximum | JA-3 | ||
| | |-----------------+-----------------+-----------------+-----------------| ||
| | | 50ms | 150ms | 250ms | pins 1 & 2 | ||
| | | | | | closed | ||
| | |-----------------+-----------------+-----------------+-----------------| ||
| | | 250ms | 600ms | 1000ms | Open | ||
| | |-----------------+-----------------+-----------------+-----------------| ||
| | | 400ms | 1200ms | 2000ms | pins 2 & 3 | ||
| | | | | | closed | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
(IMG) IMG 2
| | ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | CONNECTIONS | ||
| | |-----------------------------------------------------------------------| ||
| | | Purpose | Location | ||
| | |------------------------------------------------------+----------------| ||
| | | CPU cooling fan power +12VDC | P1 | ||
| | |------------------------------------------------------+----------------| ||
| | | Optional secondary cache module (64K or 128K) | U7 | ||
| | |-----------------------------------------------------------------------| ||
| | | Note:All DRAM banks must be populated on the motherboard before | ||
| | | any cache modules can be installed. | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | USER CONFIGURABLE SETTINGS | ||
| | |-----------------------------------------------------------------------| ||
| | | Function | Jumper | Position | ||
| | |-------------------------------------------+--------+------------------| ||
| | | » | Flash memory normal operation at | JA-1 | pins 2 & 3 | ||
| | | | address A16 | | closed | ||
| | |---+---------------------------------------+--------+------------------| ||
| | | | Flash memory inverted operation at | JA-1 | pins 1 & 2 open | ||
| | | | address A16 | | | ||
| | |---+---------------------------------------+--------+------------------| ||
| | | » | Flash BIOS write protect enabled | JA-2 | pins 1 & 3, 2 & | ||
| | | | | | 4 closed | ||
| | |---+---------------------------------------+--------+------------------| ||
| | | | Flash BIOS write protect disabled | JA-2 | pins 1 & 3, 2 & | ||
| | | | | | 4 open | ||
| | +-----------------------------------------------------------------------+ ||
| | ||
| | +-----------------------------------------------------------------------+ ||
| | | CPU TYPE CONFIGURATION | ||
| | |-----------------------------------------------------------------------| ||
| | | Type | Speed | JA-3 | JA-4 | ||
| | |-------------+------------+-------------------+------------------------| ||
| | | 80486SX | 33MHz | pins 1 & 2 closed | pins 2 & 4 closed | ||
| | |-------------+------------+-------------------+------------------------| ||
| | | 80486DX/DX2 | 33/66i MHz | pins 1 & 2 closed | pins 1 & 2, 3 & 4 | ||
| | | | | | closed | ||
| | |-------------+------------+-------------------+------------------------| ||
| | | ODPR486DX | 33MHz | pins 1 & 2 closed | pins 1 & 2, 3 & 4 | ||
| | | | | | closed | ||
| | |-------------+------------+-------------------+------------------------| ||
| | | ODP486DX | 33MHz | pins 2 & 3 closed | pins 1 & 2, 3 & 4 | ||
| | | | | | closed | ||
| | |-----------------------------------------------------------------------| ||
| | | Note:ODPR486DX is pin compatible with the 80486DX/80486DX2 | ||
| | | processors. | ||
| | +-----------------------------------------------------------------------+ ||
| +---------------------------------------------------------------------------+|
+----------------------------------------------------------------------------------+