ACER, INC.
PSWMA
| Device Type | Mainboard |
| Processor | Celeron/Pentium II/Pentium III |
| Processor Speed | 233/266/300/333/350/366/400/433/450/500/550/600MHz |
| Chip Set | Intel |
| Audio Chip Set | ADI |
| Maximum Onboard Memory | 512MB (SDRAM supported) |
| Maximum Audio Memory | Unidentified |
| Cache | 0/128/256/512KB (located on the CPU) |
| BIOS | Award |
| Dimensions | 244mm x 190mm |
| I/O Options | 32-bit PCI slots (3), floppy drive interface, game/MIDI port, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial port, serial interface, VGA port, Audio Modem Riser slot, IR connector, USB ports (2), ATX power connector, line in, line out, microphone in, audio in - CD-ROMs (2), Wake-on-LAN connector, SB-Link connector |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| ATX power connector | ATX |
IDE interface 1 | CN15 |
| PS/2 mouse port | CN1 | Audio in - CD-ROM (Sony) | CN16 |
| USB port 1 | CN2 | Audio in - CD-ROM (Mitsumi) | CN17 |
| USB port 2 | CN3 | SB Link connector | CN18 |
| Parallel port | CN4 | IR connector | CN19 |
| Serial port | CN5 | Serial interface | CN20 |
| VGA port | CN6 | Wake-on-LAN connector | CN21 |
| Game/MIDI port | CN7 | Green PC connector | CN22/Pins 1 & 2 |
| Line out | CN8 | Reset switch | CN22/Pins 3 & 4 |
| Line in | CN9 | IDE interface LED | CN22/Pins 6 & 7 |
| Microphone in | CN10 | Power Switch | CN22/Pins 9 & 10 |
| CPU fan power | CN11 | Power LED & keylock | CN22/Pins 14-18 |
| Chassis fan power | CN12 | Speaker | CN22/Pins 20-23 |
| Floppy drive interface | CN13 | 32-bit PCI slots | PC1 - PC3 |
| IDE interface 2 | CN14 | Audio Modem Riser slot | SL1 |
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
Audio CODEC enabled | JP1 | Pins 1 & 2 closed |
| Audio CODEC disabled | JP1 | Pins 2 & 3 closed | |
| » | CMOS memory normal operation | JP2 | Pins 2 & 3 closed |
|
CMOS memory clear | JP2 | Pins 1 & 2 closed |
| » | Keyboard voltage selection 5v | JP3 | Pins 1 & 2 closed |
| Keyboard voltage selection 5v stand by | JP3 | Pins 2 & 3 closed | |
DIMM CONFIGURATION |
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Size |
Bank 0 |
Bank 1 |
16MB |
(1) 2M x 64 |
None |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
32MB |
(1) 4M x 64 |
None |
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
64MB |
(1) 8M x 64 |
None |
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
128MB |
(1) 16M x 64 |
None |
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
256MB |
(1) 32M x 64 |
None |
272MB |
(1) 32M x 64 |
(1) 2M x 64 |
288MB |
(1) 32M x 64 |
(1) 4M x 64 |
320MB |
(1) 32M x 64 |
(1) 8M x 64 |
384MB |
(1) 32M x 64 |
(1) 16M x 64 |
512MB |
(1) 32M x 64 |
(1) 32M x 64 |
| Note: Board supports SDRAM memory. | ||
CACHE CONFIGURATION |
| Note: 256KB/512KB cache is located on the Pentium II/Pentium III CPUs. 128KB cache is located on the Celeron 300A and greater CPUs. |
CPU SPEED SELECTION (CELERON) |
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CPU speed |
Clock speed |
Multiplier |
JF0 |
JF1 |
JF2 |
JF3 | JP4 |
333MHz |
66MHz |
5x |
2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
366MHz |
66MHz |
5.5x |
2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
400MHz |
66MHz |
6x |
1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
433MHZ |
66MHz |
6.5x |
1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
| Note:
Pins designated should be in the closed position. Note: Clock speed may be set to auto-detect by leaving JP4 open. |
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CPU SPEED SELECTION (PENTIUM II) |
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CPU speed |
Clock speed |
Multiplier |
JF0 |
JF1 |
JF2 |
JF3 | JP4 |
| 233MHz | 66MHz | 3.5x | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
| 266MHz | 66MHz | 4x | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
| 300MHz | 66MHz | 4.5x | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
333MHz |
66MHz |
5x |
2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
350MHz |
100MHz |
3.5x |
1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
400MHz |
100MHz |
4x |
2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
450MHZ |
100MHz |
4.5x |
2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
| Note:
Pins designated should be in the closed position. Note: Clock speed may be set to auto-detect by leaving JP4 open. |
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CPU SPEED SELECTION (PENTIUM III) |
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CPU speed |
Clock speed |
Multiplier |
JF0 |
JF1 |
JF2 |
JF3 | JP4 |
450MHZ |
100MHz |
4.5x |
2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
500MHz |
100MHz |
5x |
2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
550MHz |
100MHz |
5.5x |
2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
| 600MHz | 100MHz | 6x | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
| Note:
Pins designated should be in the closed position. Note: Clock speed may be set to auto-detect by leaving JP4 open. |
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CPU VOLTAGE SELECTION |
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Voltage |
JVID0 | JVID1 | JVID2 | JVID3 | JVID4 |
| auto-detect | Open | Open | Open | Open | Open |
| 1.8v | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 |
| 1.85v | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 |
| 1.9v | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
| 1.95v | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
| 2v | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| 2.05v | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| 2.1v | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| 2.2v | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
| Note: Pins designated should be in the closed position | |||||