ACER, INC.
ACERALTOS 900 PRO (M11A), M11A
|
Device Type |
Mainboard |
|
Processor |
Pentium Pro |
|
Processor Speed |
180/200MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
384MB (EDO supported) |
|
Cache |
256/512KB (located on Pentium Pro CPU) |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), SCSI interface, Wide Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VRM connector |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Power LED & keylock |
CN16 |
|
Serial port 2 |
CN2 |
Reset switch/RDM cable connector |
CN17 |
|
Parallel port |
CN3 |
IDE interface LED |
CN18 |
|
Floppy drive interface |
CN5 |
CPU fan power |
FA1 |
|
IDE interface 1 |
CN6 |
VRM connector |
J7 |
|
IDE interface 2 |
CN7 |
Wide SCSI interface |
J8 |
|
RDM connector |
CN8 |
SCSI interface |
J12 |
|
RDM connector |
CN9 |
PS/2 mouse port |
MS1 |
|
Speaker |
CN15 |
32-bit PCI slots |
PC1 - PC4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
CN10 |
Unidentified |
|
|
Factory configured - do not alter |
CN11 |
Unidentified |
|
|
Factory configured - do not alter |
CN12 |
Unidentified |
|
|
Factory configured - do not alter |
CNN1 |
Unidentified |
|
|
Factory configured - do not alter |
FA2 |
Unidentified |
|
|
Factory configured - do not alter |
FA3 |
Unidentified |
|
|
Factory configured - do not alter |
FA4 |
Unidentified |
|
|
BIOS type select Acer |
J4 |
Pins 1 & 2 closed |
|
BIOS type select OEM |
J4 |
Pins 2 & 3 closed | |
|
|
Password enabled |
J5 |
Pins 1 & 2 closed |
|
Password disabled |
J5 |
Pins 2 & 3 closed | |
|
|
SCSI type select wide |
J6 |
Closed |
|
SCSI type select narrow |
J6 |
Open | |
|
|
Buzzer enabled |
J13 |
Pins 1 & 2 closed |
|
External speaker enabled |
J13 |
Pins 2 & 3 closed | |
|
|
Reset switch enabled |
JMP1 |
Pins 1 & 2 closed |
|
Reset switch disabled, Green PC enabled |
JMP1 |
Pins 2 & 3 closed | |
|
SIMM CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
8MB |
(2) 1M x 36 |
None |
None |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
None |
|
16MB |
(2) 2M x 36 |
None |
None |
|
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
None |
|
24MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
32MB |
(2) 4M x 36 |
None |
None |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
None |
|
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
None |
|
SIMM CONFIGURATION (CON'T) | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
None |
|
48MB |
(2) 4M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
56MB |
(2) 4M x 36 |
(2) 2M x 36 |
(2) 1M x 36 |
|
64MB |
(2) 8M x 36 |
None |
None |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
None |
|
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
None |
|
80MB |
(2) 8M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
88MB |
(2) 8M x 36 |
(2) 2M x 36 |
(2) 1M x 36 |
|
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
None |
|
96MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
96MB |
(2) 8M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
|
104MB |
(2) 8M x 36 |
(2) 4M x 36 |
(2) 1M x 36 |
|
112MB |
(2) 8M x 36 |
(2) 4M x 36 |
(2) 2M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
128MB |
(2) 16M x 36 |
None |
None |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
None |
|
136MB |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 1M x 36 |
|
136MB |
(2) 16M x 36 |
(2) 1M x 36 |
None |
|
144MB |
(2) 16M x 36 |
(2) 2M x 36 |
None |
|
144MB |
(2) 16M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
152MB |
(2) 16M x 36 |
(2) 2M x 36 |
(2) 1M x 36 |
|
160MB |
(2) 16M x 36 |
(2) 4M x 36 |
None |
|
160MB |
(2) 16M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
|
168MB |
(2) 16M x 36 |
(2) 4M x 36 |
(2) 1M x 36 |
|
176MB |
(2) 16M x 36 |
(2) 4M x 36 |
(2) 2M x 36 |
|
192MB |
(2) 16M x 36 |
(2) 8M x 36 |
None |
|
192MB |
(2) 16M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
200MB |
(2) 16M x 36 |
(2) 8M x 36 |
(2) 1M x 36 |
|
208MB |
(2) 16M x 36 |
(2) 8M x 36 |
(2) 2M x 36 |
|
224MB |
(2) 16M x 36 |
(2) 8M x 36 |
(2) 4M x 36 |
|
256MB |
(2) 16M x 36 |
(2) 16M x 36 |
None |
|
256MB |
(2) 16M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
264MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 1M x 36 |
|
272MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 2M x 36 |
|
288MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 4M x 36 |
|
320MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 8M x 36 |
|
384MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 16M x 36 |
|
Note: Board accepts EDO memory. | |||
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
|
CPU SPEED SELECTION (PENTIUM 5 COLUMNS) | |||||||
|
CPU speed |
Clock speed |
Multiplier |
CN13/ pins 1 & 5 |
CN13/ pins 2 & 6 |
CN13/ pins 3 & 7 |
CN13/ pins 4 & 8 |
J9 |
|
180MHz |
60MHz |
3x |
Closed |
Closed |
Open |
Closed |
1 & 2 |
|
200MHz |
66MHz |
3x |
Closed |
Closed |
Open |
Closed |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU VOLTAGE SELECTION | |||||
|
Voltage |
CN14/pins 1 & 5 |
CN14/pins 2 & 6 |
CN14/pins 3 & 7 |
CN14/pins 4 & 8 | |
|
2.1v |
Open |
Open |
Open |
Closed | |
|
2.2v |
Open |
Open |
Closed |
Open | |
|
2.3v |
Open |
Open |
Closed |
Closed | |
|
2.4v |
Open |
Closed |
Open |
Open | |
|
2.5v |
Open |
Closed |
Open |
Closed | |
|
2.6v |
Open |
Closed |
Closed |
Open | |
|
2.7v |
Open |
Closed |
Closed |
Closed | |
|
2.8v |
Closed |
Open |
Open |
Open | |
|
2.9v |
Closed |
Open |
Open |
Closed | |
|
3.0v |
Closed |
Open |
Closed |
Open | |
|
3.1v |
Closed |
Open |
Closed |
Closed | |
|
3.2v |
Closed |
Closed |
Open |
Open | |
|
3.3v |
Closed |
Closed |
Open |
Closed | |
|
3.4v |
Closed |
Closed |
Closed |
Open | |
|
3.5v |
Closed |
Closed |
Closed |
Closed | |
|
SCSI TERMINATON SELECTION | ||
|
Setting |
J10 | |
|
Termination disabled |
Open | |
|
Termination enabled |
Pins 1 & 2 closed | |
|
Termination switchable through SCSI select utility |
Pins 2 & 3 closed | |