ACER, INC.
V55LA-2
|
Device Type |
Mainboard |
|
Processor |
CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium/Pentium MMX |
|
Processor Speed |
75/90/100/120/133/150/166/180/200/233MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
128MB (EDO supported) |
|
Maximum Video Memory |
2MB |
|
Cache |
256/512/1024KB |
|
BIOS |
Acer |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
Floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connector, line in, wavetable connector, audio in CD-ROM |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Ethernet/multimedia connector |
CN1 |
CPU fan power |
CN18 |
|
Audio in CD-ROM |
CN2 |
Front panel connector |
CN19 |
|
USB connector |
CN5 |
VGA port |
CN21 |
|
Wavetable connector |
CN6 |
Modem connector |
CN22 |
|
PS/2 mouse port |
CN8 |
ATI media connector |
CN23 |
|
Audio connector |
CN9 |
Line in |
CN31 |
|
Floppy drive interface |
CN10 |
Green PC connector |
JP15 |
|
IDE interface 2 |
CN11 |
External battery |
JP30 |
|
IDE interface 1 |
CN12 |
IDE interface LED |
JP48/pins 1/3/5 |
|
Serial port 1 |
CN13 |
Power LED |
JP48/pins 2/4/6 |
|
Serial port 2 |
CN14 |
Power on connector |
JP50 |
|
Parallel port |
CN17 |
Riser slot |
SL1 |
|
Note: The location of CN1 is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
CN30 |
Unidentified |
|
BIOS type select Acer |
JP1 |
Pins 1 & 2 closed | |
|
BIOS type select OEM |
JP1 |
Pins 2 & 3 closed | |
|
LED select IDE LED only |
JP2 |
Pins 2 & 3 closed | |
|
LED select IDE & floppy |
JP2 |
Pins 1 & 2 closed | |
|
CN19/pins 19 & 20 supports green PC |
JP11 |
Pins 1 & 2 closed | |
|
UPS enabled |
JP16 |
Pins 1 & 2 closed | |
|
UPS disabled |
JP16 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP42 |
Unidentified |
|
On board sound enabled |
SW2/5 |
Off | |
|
On board sound disabled |
SW2/5 |
On | |
|
Password disabled |
SW2/6 |
On | |
|
Password enabled |
SW2/6 |
Off | |
|
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 |
|
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 |
|
Note: Board accepts EDO memory. | ||
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
256KB |
(2) 32K x 32 |
Unidentified |
|
512KB |
(2) 64K x 32 |
Unidentified |
|
1MB |
(2) 128K x 32 |
Unidentified |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP3 |
JP4 |
|
256KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
512KB |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
1MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
VIDEO MEMORY CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(2) 256K x 16 |
None |
|
2MB |
(2) 256K x 16 |
(2) 256K x 16 |
|
CPU SPEED SELECTION (CX 6X86) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
120MHz |
50MHz |
2x |
On |
On |
On |
Off |
|
150MHz |
60MHz |
2x |
On |
Off |
On |
Off |
|
166MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
CPU SPEED SELECTION (CX 6X86L) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
120MHz |
50MHz |
2x |
On |
On |
On |
Off |
|
150MHz |
60MHz |
2x |
On |
Off |
On |
Off |
|
166MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
CPU SPEED SELECTION (CX 6X86MX) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
166MHz |
66MHz |
2.5x |
Off |
On |
On |
On |
|
180MHz |
60MHz |
3x |
On |
Off |
Off |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (AM K5) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
75MHz |
50MHz |
1.5x |
On |
On |
Off |
Off |
|
90MHz |
60MHz |
1.5x |
On |
Off |
Off |
Off |
|
100MHz |
66MHz |
1.5x |
Off |
On |
Off |
Off |
|
120MHz |
60MHz |
2x |
On |
Off |
On |
Off |
|
133MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
166MHz |
66MHz |
2.5x |
Off |
On |
On |
On |
|
CPU SPEED SELECTION (AM K6) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
166MHz |
66MHz |
2.5x |
Off |
On |
On |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
|
233MHz |
66MHz |
3.5x |
Off |
On |
Off |
Off |
|
CPU SPEED SELECTION (INTEL) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
75MHz |
50MHz |
1.5x |
On |
On |
Off |
Off |
|
90MHz |
60MHz |
1.5x |
On |
Off |
Off |
Off |
|
100MHz |
66MHz |
1.5x |
Off |
On |
Off |
Off |
|
120MHz |
60MHz |
2x |
On |
Off |
On |
Off |
|
133MHz |
66MHz |
2x |
Off |
On |
On |
Off |
|
150MHz |
60MHz |
2.5x |
On |
Off |
On |
On |
|
166MHz |
66MHz |
2.5x |
Off |
On |
On |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (INTEL MMX) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
150MHz |
60MHz |
2.5x |
On |
Off |
On |
On |
|
166MHz |
66MHz |
2.5x |
Off |
On |
On |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
|
CPU TYPE SELECTION | |
|
Type |
JP7 |
|
Single voltage |
Closed |
|
Dual voltage |
Open |
|
CPU VOLTAGE SELECTION | |||
|
Voltage |
V core |
JP43 |
JP44 |
|
3.3v |
2.8v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
3.3v |
3.2v |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
3.5v |
2.8v |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
3.5v |
3.2v |
Pins 1 & 2 closed |
Pins 1 & 2 closed |