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# MICRONICS COMPUTERS, INC.
HELIOS
Device Type Mainboard
Processor Pentium II
Processor Speed 233/266/300/333/350/400MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 1GB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS Phoenix
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (5), floppy drive interface,
game/MIDI port, IDE interfaces (2), parallel
port, PS/2 mouse port, serial ports (2), USB
connectors (2), ATX power connector, AGP
slot, line in, line out, microphone in, audio
in – CD-ROM
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+-----------+------------------+-----------|
| AGP slot | AGP | Reset switch | J28/pins |
| | | | 22 & 23 |
|-----------------+-----------+------------------+-----------|
| ATX power | ATX | Speaker | J28/pins |
| connector | | | 24 - 27 |
|-----------------+-----------+------------------+-----------|
| IDE interface 1 | J7 | CPU fan power 1 | J30 |
|-----------------+-----------+------------------+-----------|
| IDE interface 2 | J8 | CPU fan power 2 | J31 |
|-----------------+-----------+------------------+-----------|
| Floppy drive | J9 | Chassis fan | J32 |
| interface | | power | |
|-----------------+-----------+------------------+-----------|
| IDE interface | J10 | I2C connector | J33 |
| LED | | | |
|-----------------+-----------+------------------+-----------|
| PS/2 mouse port | J11 | Chassis | J34 |
| | | intrusion alarm | |
|-----------------+-----------+------------------+-----------|
| USB connector 1 | J12 | Audio in – | J35 |
| | | CD-ROM | |
|-----------------+-----------+------------------+-----------|
| USB connector 2 | J12A | Video audio | J36 |
| | | input | |
|-----------------+-----------+------------------+-----------|
| Serial port 1 | J13 | Audio auxiliary | J37 |
| | | input | |
|-----------------+-----------+------------------+-----------|
| Serial port 2 | J14 | Telephony | J38 |
| | | connector | |
|-----------------+-----------+------------------+-----------|
| Parallel port | J15 | Game/MIDI port | J39 |
|-----------------+-----------+------------------+-----------|
| PCI sideband | J21 | Microphone in | J39A |
| connector | | | |
|-----------------+-----------+------------------+-----------|
| PCI sideband | J22 | Line in | J39B |
| connector | | | |
|-----------------+-----------+------------------+-----------|
| Soft off power | J28/pins | Line out | J39C |
| supply | 1 & 2 | | |
|-----------------+-----------+------------------+-----------|
| IDE interface | J28/pins | Audio line in | J40 |
| LED | 13 - 16 | | |
|-----------------+-----------+------------------+-----------|
| Power LED | J28/pins | 32-bit PCI slots | PC1 – PC5 |
| | 18 – 20 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Flash BIOS write protect enabled | W4 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS write protect disabled | W4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | W9 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | W9 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Soft off power supply enabled | W10 | Open |
|---+-----------------------------------+-------+------------|
| | Soft off power supply disabled | W10 | Closed |
|---+-----------------------------------+-------+------------|
| » | Sound enabled/disabled through | W11 | Closed |
| | BIOS | | |
|---+-----------------------------------+-------+------------|
| | Sound disabled through hardware | W11 | Open |
|---+-----------------------------------+-------+------------|
| » | CPU speed select from BIOS | W12 | Open |
| | disabled | | |
|---+-----------------------------------+-------+------------|
| | CPU speed select from BIOS | W12 | Closed |
| | enabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 1M x 64 | (1) 1M x | (1) 1M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 1M x 64 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 2M x 64 | (1) 2M x | (1) 2M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 2M x 64 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 64 | (1) 4M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 8M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 64 | (1) 4M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 64 | (1) 8M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 136MB | (1) 16M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (1) 16M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 152MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 16M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 176MB | (1) 16M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 16M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 224MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 32M x | None | None | None |
| | 64 | | | |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | None | None |
| | 64 | 64 | | |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 272MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 280MB | (1) 32M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 288MB | (1) 16M x | (1) 16M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 304MB | (1) 32M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 352MB | (1) 32M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 384MB | (1) 16M x | (1) 16M x | (1) 16M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 448MB | (1) 32M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 512MB | (1) 32M x | (1) 32M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 512MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 640MB | (1) 32M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 768MB | (1) 32M x | (1) 32M x | (1) 32M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 1024MB | (1) 32M x | (1) 32M x | (1) 32M x | (1) 32M x |
| | 64 | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USB SELECTION |
|------------------------------------------------------------|
| Setting | W5 | W6 | W7 |
|---------------------+------------+------------+------------|
| » | USB 1 routed to | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| | J12 | closed | closed | closed |
|---+-----------------+------------+------------+------------|
| | USB 1 routed to | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | J1 | closed | closed | closed |
+------------------------------------------------------------+