ACER, INC.
ACERPOWER425SE/433E/466DE (J3 PROJECT)
|
Processor |
80486SX/80487SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive/Pentium (depends on CPU card installed) |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/66MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
256MB |
|
Cache |
64/128/256/1024KB (depends on CPU card installed) |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
External CPU card, 32-bit VESA local bus slots (2), PS/2 mouse port |
|
NPU Options |
None |

|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
CN1 |
Chassis fan power |
JJ1 |
|
SCSI interface LED |
J5 |
Chassis fan power |
JJ2 |
|
Speaker |
J6 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
Optional mouse/keyboard |
J7 |
External CPU slot |
SL3 |
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
» |
Factory configured - do not alter |
JP5 |
N/A |
|
» |
Password disabled |
JP6 |
pins 2 & 3 closed |
|
|
Password enabled |
JP6 |
pins 1 & 2 closed |
|
» |
CMOS memory normal operation |
JP7 |
Open |
|
|
CMOS memory clear |
JP7 |
Closed |
|
» |
IRQ select IRQ11 |
JP8 |
pins 2 & 3 closed |
|
|
IRQ select IRQ10 |
JP8 |
pins 1 & 2 closed |
|
» |
Onboard buzzer enabled |
JP9 |
pins 1 & 2 closed |
|
|
External speaker enabled |
JP9 |
pins 2 & 3 closed |
|
DRAM CONFIGURATION (SYSTEM BOARD) |
||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
24MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
28MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
28MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
36MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 16M x 36 |
NONE |
NONE |
NONE |
|
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
NONE |
|
80MB |
(1) 4M x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
84MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
NONE |
|
84MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
NONE |
|
88MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
88MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
NONE |
|
96MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
NONE |
|
100MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
100MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
DRAM CONFIGURATION (SYSTEM BOARD CON'T) |
||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
112MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
112MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
128MB |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
132MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
NONE |
|
136MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
136MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
144MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
|
144MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
NONE |
|
148MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
148MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
160MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
160MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
160MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
192MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
|
208MB |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
208MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
256MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
VESA WAIT STATE CONFIGURATION |
|
|
Wait states |
JP3 |
|
0 wait states |
pins 1 & 2 closed |
|
1 wait state |
pins 2 & 3 closed |
|
BUS SPEED CONFIGURATION |
|
|
CPU speed |
JP4 |
|
<= 33MHz |
pins 1 & 2 closed |
|
> 33MHz |
pins 2 & 3 closed |
|
EXTERNAL BATTERY CONFIGURATION |
||||
|
Type |
JP10 |
JP11 |
JP12 |
JP13 |
|
Dallas |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Benchmarq |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
AIC-7770 CONFIGURATION |
||
|
Setting |
JP1 |
JP2 |
|
Installed |
Open |
Open |
|
Not installed |
Closed |
Closed |

|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
» |
LADS for VLB select 33MHz |
JP3 |
pins 1 & 2 closed |
|
|
LADS for VLB select 50MHz |
JP3 |
pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP5 |
N/A |
|
» |
Factory configured - do not alter |
JP6 |
N/A |
|
» |
Factory configured - do not alter |
JP7 |
N/A |
|
» |
Local bus disabled |
JP10 |
pins 1 & 2 closed |
|
|
Local bus enabled |
JP10 |
pins 2 & 3 closed |
|
CACHE CONFIGURATION |
||||
|
Size |
Bank 0 |
Bank 1 |
TAG |
TAG (DIRTY) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 16K x 1 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
(1) 16K x 1 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 16K x 1 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 128K x 8 |
(1) 64K x 1 |
|
Note: The orientation of the cache banks and TAG banks are unidentified. |
||||
|
CACHE JUMPER CONFIGURATION |
|||||||
|
Size |
JP11 |
JP12 |
JP13 |
JP14 |
JP18 |
JP19 |
JP20 |
|
64KB |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
128KB |
Closed |
Open |
Open |
Open |
Open |
Closed |
Open |
|
256KB |
Closed |
Closed |
Open |
Open |
Open |
Closed |
Closed |
|
1MB |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
CACHE BANK CONFIGURATION |
||
|
Type |
JP15 |
JP16 |
|
Single bank |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Double bank |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CPU SPEED CONFIGURATION |
||||
|
Type |
JP1 |
JP2 |
JP8 |
JP9 |
|
25MHz |
Open |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
33MHz |
Open |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
40MHz |
Closed |
Closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
50iMHz |
Open |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
50MHz |
Closed |
Closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
66iMHz |
Open |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION |
|
|
Type |
JP4 |
|
80486SX |
pins 1 & 2 closed |
|
ODP486SX |
pins 2 & 3 closed |
|
80487SX |
pins 2 & 3 closed |
|
80486DX |
Open |
|
80486DX2 |
Open |
|
Pentium Overdrive |
pins 2 & 3 closed |
|
BUS SPEED CONFIGURATION |
|
|
CPU speed |
JP17 |
|
<= 33MHz |
pins 1 & 2, 3 & 4 closed |
|
> 33MHz |
pins 2 & 3 closed |

|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
» |
Local bus disabled |
JP4 |
pins 2 & 3 closed |
|
|
Local bus enabled |
JP4 |
pins 1 & 2 closed |
|
CACHE CONFIGURATION |
||||
|
Size |
Bank 0 |
Bank 1 |
TAG |
TAG (DIRTY) |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 16K x 1 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 32K x 8 |
(1) 64K x 1 |
Note: The orientation of the cache banks and TAG banks are unidentified. The location of the TAG is unidentified. |
||||
|
CACHE JUMPER CONFIGURATION |
||||
|
Size |
JP11 |
JP12 |
JP14 |
JP15 |
|
256KB |
Open |
Open |
Open |
Open |
|
1MB |
Closed |
Closed |
Closed |
Closed |
|
CPU FREQUENCY CONFIGURATION |
|||
|
Speed |
JP1 |
JP2 |
JP3 |
|
33MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
40MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
50MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
66MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |