ARTEK COMPUTER SYSTEMS, INC.
OPTI-495 SX CACHE
|
Processor |
80386DX/80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
SRAM Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
235mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J1 |
Speaker |
J4 |
|
Turbo switch |
J2 |
Power LED & keylock |
J5 |
|
Turbo LED |
J3 |
External battery |
J7 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CMOS memory normal operation |
P1 |
pins 2 & 3 closed | |
|
CMOS memory clear |
P1 |
pins 1 & 2 closed | |
|
Monitor type select color |
P2 |
closed | |
|
Monitor type select monochrome |
P2 |
open | |
|
Factory configured - do not alter |
P28 |
open | |
|
Factory configured - do not alter |
P39 |
open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SRAM CONFIGURATION | |||
|
Size |
Cache |
Location |
TAG |
|
64KB |
(8) 8K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
Bank 0 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
Banks 0 & 1 |
(1) 32K x 8 |
|
SRAM JUMPER CONFIGURATION | ||||||
|
Size |
P3 |
P5 |
P6 |
P7 |
P8 |
P9 |
|
64KB |
pins 2 & 3 closed |
open |
open |
open |
open |
open |
|
128KB |
pins 1 & 2 closed |
closed |
closed |
closed |
closed |
closed |
|
256KB |
pins 2 & 3 closed |
closed |
closed |
closed |
closed |
closed |
|
CPU CONFIGURATION | ||||
|
CPU |
P4 |
P25 |
P33 |
P100 |
|
80486 (PGA) |
pins 2 & 3 closed |
pins 1 & 2 closed |
closed |
pins 2 & 3 closed |
|
80386 (PQFP) |
pins 1 & 2 closed |
pins 2 & 3 closed |
open |
pins 1 & 2 closed |
|
80486 CPU CONFIGURATION | |||
|
CPU |
P12 |
P13 |
P14 |
|
80486DX/80486DX2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
closed |
|
80487SX |
pins 1 & 2 closed |
pins 2 & 3 closed |
closed |
|
80487SX |
pins 2 & 3 closed |
pins 2 & 3 closed |
open |
|
CPU SPEED CONFIGURATION | |||||
|
Speed |
CPU |
P30 |
P31 |
P32 |
P97 |
|
66iMHz |
80486 |
closed |
open |
closed |
closed |
|
50MHz |
80486 |
closed |
closed |
open |
closed |
|
50iMHz |
80486 |
open |
closed |
open |
open |
|
40MHz |
80386 |
open |
open |
closed |
closed |
|
33MHz |
80486 |
closed |
closed |
open |
open |
|
33MHz |
80386 |
closed |
closed |
open |
closed |
|
25MHz |
80486 |
closed |
open |
closed |
open |