TEXT View Source
# EURONE
EM-5575
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/IBM
6X86MX/
AM K5/AM K6/IDT C6/Pentium
Processor 75/90/100/120/133/150/166/180/200/233/266/300MHz
Speed
Chip Set TX Pro
Maximum 384MB (EDO & SDRAM supported)
Onboard
Memory
Cache 1024KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
game/sound interface, green PC connector, IDE
interfaces (2), parallel port, PS/2 mouse port,
PS/2 mouse interface, serial ports (2), IR
connector, USB connectors (2), ATX power
connector, audio in – CD-ROMs (2)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+--------------+---------------+-------------|
| AT power | AT | Turbo LED | J2/pins 13 |
| connector | | | & 14 |
|---------------+--------------+---------------+-------------|
| ATX power | ATX | IDE interface | J2/pins 15 |
| connector | | LED | & 16 |
|---------------+--------------+---------------+-------------|
| Audio in – | CD1 | Reset switch | J2/pins 17 |
| CD-ROM | | | & 18 |
|---------------+--------------+---------------+-------------|
| Audio in – | CD2 | Green PC LED | J2/pins 19 |
| CD-ROM | | | & 20 |
|---------------+--------------+---------------+-------------|
| Serial port 1 | CN1 | Green PC | J2/pins 21 |
| | | connector | & 22 |
|---------------+--------------+---------------+-------------|
| Serial port 2 | CN2 | USB connector | J3/pins 1 – |
| | | 1 | 4 |
|---------------+--------------+---------------+-------------|
| IDE interface | CN3 | PS/2 mouse | J3/pins 5 - |
| 2 | | interface | 6, 15 - 16 |
|---------------+--------------+---------------+-------------|
| IDE interface | CN4 | IR connector | J3/pins 7 - |
| 1 | | | 9, 17 - 18 |
|---------------+--------------+---------------+-------------|
| Floppy drive | CN5 | USB connector | J3/pins 10 |
| interface | | 2 | - 13 |
|---------------+--------------+---------------+-------------|
| Parallel port | CN6 | Game/sound | J4 |
| | | interface | |
|---------------+--------------+---------------+-------------|
| PS/2 mouse | CN7 | Digital audio | J6 |
| port | | out | |
|---------------+--------------+---------------+-------------|
| Chassis fan | J1 | Digital audio | J7 |
| power | | in | |
|---------------+--------------+---------------+-------------|
| Speaker | J2/pins 1, | 32-bit PCI | PC1 – PC4 |
| | 3, 5, 7 | slots | |
|---------------+--------------+---------------+-------------|
| Power LED & | J2/pins 2, | PS/2 mouse | PS2 |
| keylock | 4, 6, 8, 10 | interface | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Microphone type select normal | J5 | Open |
|---+---------------------------------+-------+--------------|
| | Microphone type select special | J5 | Closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP1 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP1 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP5/C | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Sound pro enabled | JP9 | Open |
|---+---------------------------------+-------+--------------|
| | Sound pro disabled | JP9 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | None |
|------------------+--------------------+--------------------|
| 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 | Bank 4 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 2M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 56MB | (1) 4M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 4M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (1) 4M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 88MB | (1) 8M x 64 | (1) 2M x 64 | (1) 1M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 104MB | (1) 8M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 112MB | (1) 8M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 8M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 144MB | (1) 8M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 152MB | (1) 16M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (1) 8M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 168MB | (1) 16M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 176MB | (1) 16M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 200MB | (1) 16M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 208MB | (1) 16M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 224MB | (1) 16M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 256MB | (1) 16M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 384MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/SIMM VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP4A | JP4B |
|------------------+--------------------+--------------------|
| » | 3.3v | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | 5v | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 1MB | (2) 128K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 75MHz | 2x |2 & 3 |1 & 2 |Closed| Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 75MHz | 2x |2 & 3 |1 & 2 |Closed| Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 60MHz | 2.5x |2 & 3 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3x |1 & 2 |2 & 3 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 233MHz | 75MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 60MHz | 2.5x |2 & 3 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3x |1 & 2 |2 & 3 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 233MHz | 75MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7/A |JP7/B |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x |1 & 2 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x |1 & 2 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |2 & 3 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7A | JP7B |
|---------+-----------+----------+------+------+-----+-------|
| 166MHz | 66MHz | 2.5x |2 & 3 |2 & 3 |Open |Closed |
|---------+-----------+----------+------+------+-----+-------|
| 200MHz | 66MHz | 3x |1 & 2 |2 & 3 |Open |Closed |
|---------+-----------+----------+------+------+-----+-------|
| 233MHz | 66MHz | 3.5x |1 & 2 |1 & 2 |Open |Closed |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B | JP7A | JP7B |
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x |1 & 2 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x |1 & 2 |2 & 3 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B | JP7A | JP7B |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x |1 & 2 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x |1 & 2 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |2 & 3 |1 & 2 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |2 & 3 |1 & 2 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |2 & 3 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |2 & 3 |2 & 3 | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x |1 & 2 |2 & 3 |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x |1 & 2 |2 & 3 | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP5/A |JP5/B |JP7A | JP7B |
|---------+-----------+----------+------+------+-----+-------|
| 166MHz | 66MHz | 2.5x |2 & 3 |2 & 3 |Open |Closed |
|---------+-----------+----------+------+------+-----+-------|
| 200MHz | 66MHz | 3x |1 & 2 |2 & 3 |Open |Closed |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP3A | JP3B |
|------------------+--------------------+--------------------|
| AM K5 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| AM K6 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| CX 6X86 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| CX 6X86L | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| CX 6X86MX | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| IBM 6X86 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| IBM 6X86L | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| IBM 6X86MX | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| IDT C6 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| P54C | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| P55C | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP6/A | JP6/B | JP6/C | JP6/D | JP6/E | JP6/F |
|---------+--------+--------+--------+-------+-------+-------|
| | 2.2v | Open | Open | Open | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 2.5v | Open | Open | Open | Open | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
|» | 2.8v | Open | Open | Open | Open |Closed |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 2.9v | Open | Open | Open |Closed | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3.2v | Open | Open | Closed | Open | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3.3v | Open | Closed | Open | Open | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3.5v | Closed | Open | Open | Open | Open |Closed |
+------------------------------------------------------------+