ELITEGROUP COMPUTER SYSTEMS, INC.
UM4981 AIO
Processor | CX486S/U5S/SL80486SX/80486SX/SL80486SX2/80486SX2/AM486DX/ AM486DXL/CX486DX/SL80486DX/80486DX/AM486DXL2/AM486DX2/ CX486DX2/SL80486DX2/80486DX2/P24D/80486DX4 |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
Chip Set | UMC |
Max. Onboard DRAM | 64MB |
Cache | 64/128/256KB |
BIOS | Phoenix |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Parallel port | J1 | Power LED & keylock | JP30 |
Serial port 1 | J2 | Speaker | JP31 |
Serial port 2 | J3 | Reset switch | JP32 |
Floppy drive interface | J4 | Turbo LED | JP33 |
IDE interface (primary) | J5 | Turbo switch | JP34 |
IDE interface (secondary) | J6 | IDE interface LED | JP39 |
External battery | JP1 | 32-bit VESA local bus slots | SL1 & SL2 |
Green PC connector | JP15 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Flash BIOS voltage select 5v | JP2 | pins 1 & 2 closed |
Flash BIOS voltage select 12v | JP2 | pins 2 & 3 closed | |
» | On board I/O enabled | JP3 | pins 1 & 2 closed |
On board I/O disabled | JP3 | pins 2 & 3 closed | |
» | Parallel port IRQ select IRQ7 | JP4 | pins 2 & 3 closed |
Parallel port IRQ select IRQ5 | JP4 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP7 | N/A |
» | Parallel port mode select normal mode | JP8 | Open |
Parallel port mode select ECP mode | JP8 | Closed | |
» | Primary IDE interface enabled | JP35 | pins 1 & 2 closed |
Primary IDE interface disabled | JP35 | pins 2 & 3 closed | |
» | Secondary IDE interface enabled | JP36 | pins 1 & 2 closed |
Secondary IDE interface disabled | JP36 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | NONE |
2MB | NONE | NONE | (1) 512K x 36 | NONE |
3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
4MB | NONE | NONE | (1) 512K x 36 | (1) 512K x 36 |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
5MB | (1) 1M x 36 | (1) 256K x 36 | NONE | NONE |
6MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
7MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
8MB | NONE | NONE | NONE | (1) 2M x 36 |
9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | NONE | NONE | (1) 2M x 36 | (1) 2M x 36 |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
17MB | (1) 4M x 36 | (1) 256K x 36 | NONE | NONE |
18MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
19MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 |
24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
25MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 |
28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 | NONE |
34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 |
36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | NONE |
37MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | (1) 256K 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 |
49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 256K 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 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | JP22 | JP23 | JP24 | JP25 |
64KB | pins 2 & 3 closed | Open | Open | Open |
128KB | pins 1 & 2 closed | pins 1 & 2 closed | Open | Closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed | Closed | Closed |
CPU TYPE CONFIGURATION | |||
Type | JP16 | JP17 | JP18 |
CX486S | pins 2 & 3, 4 & 5 closed | pins 2 & 3, 4 & 5 closed | pins 1 & 2, 3 & 4, 5 & 6 closed |
U5S | Open | pins 1 & 2 closed | pins 2 & 3 closed |
SL80486SX | pins 1 & 2, 3 & 4 closed | pins 5 & 6 closed | pins 1 & 2 closed |
80486SX | Open | Open | pins 2 & 3 closed |
SL80486SX2 | pins 1 & 2, 3 & 4 closed | pins 5 & 6 closed | pins 1 & 2 closed |
80486SX2 | Open | Open | pins 2 & 3 closed |
AM486DX | Open | Open | pins 2 & 3 closed |
AM486DXL | Open | pins 1 & 2 closed | pins 2 & 3 closed |
CX486DX | pins 2 & 3 closed | pins 2 & 3, 4 & 5 closed | pins 1 & 2, 3 & 4, 5 & 6 closed |
SL80486DX | pins 1 & 2, 3 & 4 closed | pins 5 & 6 closed | pins 1 & 2 closed |
80486DX | Open | Open | pins 2 & 3 closed |
AM486DX2 | Open | Open | pins 2 & 3 closed |
AM486DXL2 | Open | pins 1 & 2 closed | pins 2 & 3 closed |
CX486DX2 | pins 2 & 3 closed | pins 2 & 3, 4 & 5 closed | pins 1 & 2, 3 & 4, 5 & 6 closed |
SL80486DX2 | pins 1 & 2, 3 & 4 closed | pins 5 & 6 closed | pins 1 & 2 closed |
80486DX2 | Open | Open | pins 2 & 3 closed |
P24D | pins 1 & 2, 3 & 4 closed | pins 3 & 4, 5 & 6 closed | pins 1 & 2, 4 & 5 closed |
80486DX4 | pins 1 & 2, 3 & 4 closed | pins 5 & 6 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION (CON’T) | |||
Type | JP19 | JP20 | JP21 |
CX486S | pins 1 & 2, 3 & 4 closed | Open | pins 2 & 3 closed |
U5S | pins 2 & 3 closed | pins 3 & 4 closed | pins 2 & 3 closed |
SL80486SX | pins 1 & 2 closed | Open | pins 2 & 3 closed |
80486SX | Open | Open | pins 2 & 3 closed |
SL80486SX2 | pins 1 & 2 closed | Open | pins 2 & 3 closed |
80486SX2 | Open | Open | pins 2 & 3 closed |
AM486DX | Open | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
AM486DXL | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed | pins 1 & 2, 3 & 4 closed |
CX486DX | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
SL80486DX | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
80486DX | Open | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
AM486DX2 | Open | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
AM486DXL2 | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed | pins 1 & 2, 3 & 4 closed |
CX486DX2 | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
SL80486DX2 | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
80486DX2 | Open | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
P24D | pins 1 & 2, 4 & 5 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
80486DX4 | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
CPU SPEED CONFIGURATION | |||
Speed | JP9 | JP10 | JP11 |
25MHz | Open | Open | Closed |
33MHz | Closed | Closed | Closed |
40MHz | Open | Closed | Closed |
50iMHz | Open | Open | Closed |
50MHz | Closed | Open | Open |
66iMHz | Closed | Closed | Closed |
75iMHz | Open | Open | Closed |
100iMHz | Closed | Closed | Closed |
CPU SPEED CONFIGURATION (80486DX4 ONLY) | |
Speed | JP29 |
2x | pins 2 & 3 closed |
3x | Open |
CPU VOLTAGE CONFIGURATION | |
Voltage | JP26 |
3.3v (from on board regulator) | pins 3 & 4 closed |
3.3v (from special power supply unit) | pins 5 & 6 closed |
5v (from standard power supply unit | pins 1 & 2 closed |
VESA WAIT STATE CONFIGURATION | |
Wait states | JP27 |
0 wait states | Open |
1 wait state | Closed |
BUS SPEED CONFIGURATION | |
CPU speed | JP28 |
<= 33MHz | Open |
> 33MHz | Closed |
ECP MODE CONFIGURATION | ||
Setting | JP5 | JP6 |
DRQ1/DACK 1 | pins 1 & 2 closed | pins 1 & 2 closed |
DRQ3/DACK 3 | pins 2 & 3 closed | pins 2 & 3 closed |
HARD DRIVE TIMING CONFIGURATION | |||||
Active time | Cycle time | Speed | HDD capacity | JP37 | JP38 |
15T | 30T | 1 | 40/50MHz | 2 & 3 | 2 & 3 |
15T | 19T | 2 | 25/33MHz | 1 & 2 | 2 & 3 |
9T | 13T | 3 | <20mhz/enhanced IDE | 2 & 3 | 1 & 2 |
18T | 37T | 0 | <40mhz/non ATA support | 1 & 2 | 1 & 2 |