ACER, INC.
S7AX
| Device Type | Mainboard |
| Processor | CX 6X86L/CX 686MX/CX MII/AM K5/AM K6/AM K6-2/AM K6-III/Pentium/Pentium MMX |
| Processor Speed | 120/133/150/166/200/233/266/300/333/350/366/380/ 400/450/475/500MHz |
| Chip Set | ALI Aladdin |
| Maximum Onboard Memory | 512MB (EDO & SDRAM supported) |
| Cache | 512KB |
| BIOS | Award |
| Dimensions | 220mm x 250mm |
| I/O Options | 16-bit ISA slots (2), 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), parallel interface, PS/2 mouse interface, keyboard connector, serial interfaces (2), IR connector, USB interfaces (2), ATX power connector, AT power connector, AGP slot |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| AGP slot | AGP |
IDE interface LED | J7/Pins 6 & 7 |
| AT power connector | AT | Power switch | J7/Pins 9 & 10 |
| ATX power connector | ATX |
Green PC connector | J7/Pins 11 & 12 |
| 16-bit ISA slots | IS1 - IS2 | Power LED & keylock | J7/Pins 14-18 |
| PS/2 mouse interface | J1 | Speaker | J7/Pins 20-23 |
| Serial interface 1 | J2 | IR connector | J8 |
| Serial interface 2 | J3 | IDE interface 1 | J9 |
| USB interface 1 | J4 | IDE interface 2 | J10 |
| Parallel interface | J5 | USB interface 2 | J11 |
| Floppy drive interface | J6 | Keyboard connector | J12 |
| Green PC LED | J7/Pins 1 & 2 | 32-bit PCI slots | PC1 - PC4 |
| Reset switch | J7/Pins 3 & 4 | ||
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
CMOS memory normal operation | JP2 | Pins 1 & 2 closed |
| CMOS memory clear | JP2 | Pins 2 & 3 closed | |
SIMM CONFIGURATION |
|
Size |
Bank 0 |
8MB |
(2) 1M x 36 |
16MB |
(2) 2M x 36 |
32MB |
(2) 4M x 36 |
64MB |
(2) 8M x 36 |
128MB |
(2) 16M x 36 |
| Note: Board
accepts EDO memory. Note: Do not use mixed SIMM and DIMM memory. |
|
DIMM CONFIGURATION |
||
Size |
Bank 1 |
Bank 2 |
8MB |
(1) 1M x 64 |
None |
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
16MB |
(1) 2M x 64 |
None |
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
32MB |
(1) 4M x 64 |
None |
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
64MB |
(1) 8M x 64 |
None |
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
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 |
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
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 |
264MB |
(1) 32M x 64 |
(1) 1M x 64 |
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 EDO & SDRAM memory. Note: Do not use mixed SIMM and DIMM memory. |
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CPU SPEED SELECTION (CX 6X86L) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
150MHz |
60MHz |
2x |
Closed | Closed | Closed | Closed | Open | Open |
166MHz |
66MHz |
2x |
Open | Closed | Closed | Closed | Open | Open |
200MHz |
75MHz |
2x |
Closed | Closed | Open | Closed | Open | Open |
CPU SPEED SELECTION (CX 6X86MX) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
166MHz |
60MHz |
2.5x |
Closed | Closed | Closed | Closed | Closed | Open |
166MHz |
66MHz |
2x |
Open | Closed | Closed | Closed | Open | Open |
200MHz |
66MHz |
2.5x |
Open | Closed | Closed | Closed | Closed | Open |
| 200MHz | 75MHz | 2x | Closed | Closed | Open | Closed | Open | Open |
| 233MHz | 75MHz | 2.5x | Closed | Closed | Open | Closed | Closed | Open |
| 233MHz | 83MHz | 2x | Open | Closed | Open | Closed | Open | Open |
| 266MHz | 83MHz | 2.5x | Open | Closed | Open | Closed | Closed | Open |
| 300MHz | 75MHz | 3x | Closed | Closed | Open | Open | Closed | Open |
CPU SPEED SELECTION (CX MII) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
300MHz |
66MHz |
3.5x |
Open | Closed | Closed | Open | Open | Open |
300MHz |
75MHz |
3x |
Closed | Closed | Open | Open | Closed | Open |
333MHz |
83MHz |
3x |
Open | Closed | Open | Open | Closed | Open |
| 350MHz | 95MHz | 3x | Closed | Open | Open | Open | Closed | Open |
| 366MHz | 100MHz | 3x | Open | Open | Open | Open | Closed | Open |
CPU SPEED SELECTION (AM K5) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
133MHz |
66MHz |
2x |
Open | Closed | Closed | Closed | Open | Open |
CPU SPEED SELECTION (AM K6) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
166MHz |
66MHz |
2.5x |
Open | Closed | Closed | Closed | Closed | Open |
200MHz |
66MHz |
3x |
Open | Closed | Closed | Open | Closed | Open |
233MHz |
66MHz |
3.5x |
Open | Closed | Closed | Open | Open | Open |
| 266MHz | 66MHz | 4x | Open | Closed | Closed | Closed | Open | Closed |
| 300MHz | 66MHz | 4.5x | Open | Closed | Closed | Closed | Closed | Closed |
CPU SPEED SELECTION (AM K6-2) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
| 266MHz | 66MHz | 4x | Open | Closed | Closed | Closed | Open | Closed |
| 300MHz | 66MHz | 4.5x | Open | Closed | Closed | Closed | Closed | Closed |
| 300MHz | 100MHz | 3x | Open | Open | Open | Open | Closed | Open |
| 333MHz | 66MHz | 5x | Open | Closed | Closed | Open | Closed | Closed |
| 333MHz | 95MHz | 3.5x | Closed | Open | Open | Open | Open | Open |
| 350MHz | 100MHz | 3.5x | Open | Open | Open | Open | Open | Open |
| 366MHz | 66MHz | 5.5x | Open | Closed | Closed | Open | Open | Closed |
| 380MHz | 95MHz | 4x | Closed | Open | Open | Closed | Open | Closed |
| 400MHz | 100MHz | 4x | Open | Open | Open | Closed | Open | Closed |
| 450MHz | 100MHz | 4.5x | Open | Open | Open | Closed | Closed | Closed |
| 475MHz | 95MHz | 5x | Closed | Open | Open | Open | Closed | Closed |
CPU SPEED SELECTION (AM K6-III) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
| 400MHz | 100MHz | 4x | Open | Open | Open | Closed | Open | Closed |
| 450MHz | 100MHz | 4.5x | Open | Open | Open | Closed | Closed | Closed |
| 500MHz | 100MHz | 5x | Open | Open | Open | Open | Closed | Closed |
CPU SPEED SELECTION (PENTIUM) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
| 120MHz | 60MHz | 2x | Closed | Closed | Closed | Closed | Open | Open |
133MHz |
66MHz |
2x |
Open | Closed | Closed | Closed | Open | Open |
CPU SPEED SELECTION (PENTIUM MMX) |
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CPU speed |
Clock speed |
Multiplier |
JP4/Pins 1 & 2 |
JP4/Pins 3 & 4 | JP4/Pins 5 & 6 |
JP7/Pins 1 & 2 | JP7/Pins 3 & 4 |
JP7/Pins 5 & 6 |
| 166MHz | 66MHz | 2.5x | Open | Closed | Closed | Closed | Closed | Open |
200MHz |
66MHz |
3x |
Open | Closed | Closed | Open | Closed | Open |
| 233MHz | 66MHz | 3.5x | Open | Closed | Closed | Open | Open | Open |
CPU VOLTAGE SELECTION |
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Voltage |
JP6/Pins 1 & 2 | JP6/Pins 3 & 4 | JP6/Pins 5 & 6 | JP6/Pins 7 & 8 | JP6/P 9 & 10 |
| 2.2 | Open | Closed | Open | Open | Open |
| 2.4 | Open | Open | Closed | Open | Open |
| 2.8 | Open | Open | Open | Closed | Open |
| 2.9 | Closed | Open | Open | Closed | Open |
| 3.2 | Open | Open | Closed | Closed | Open |
| 3.3 | Open | Closed | Closed | Closed | Open |
| 3.5 | Closed | Closed | Closed | Closed | Open |