ATC/UNITRON COMPUTER & COMPUTER PARTS
U 6983
|
Processor |
Pentium |
|
Processor Speed |
75/90/100/120/133/150MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
256MB |
|
Cache |
256/512/1024KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot |
|
NPU Options |
None |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J1 |
Parallel port |
J12 |
|
Turbo switch |
J2 |
Serial port 2 |
J13 |
|
Reset switch |
J3 |
IDE interface LED 2 |
J14 |
|
Speaker |
J4 |
IDE interface LED 1 |
J15 |
|
Power LED & keylock |
J5 |
IR connector |
JP32 |
|
Green PC connector |
J6 |
PS/2 mouse interface (optional) |
MS2 |
|
IDE interface 2 |
J7 |
32-bit PCI slots |
PC1 - PC4 |
|
IDE interface 1 |
J8 |
Chassis fan power |
PS1 |
|
Serial port 1 |
J10 |
Cache slot |
SL1 |
|
Floppy drive interface |
J11 |
|
|
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Jumper |
Position |
|
|
|
CMOS memory normal operation |
JP5 |
pins 1 & 2 closed |
|
|
CMOS memory clear |
JP5 |
pins 2 & 3 closed |
|
|
Factory configured - do not alter |
JP8 |
N/A |
|
|
Factory configured - do not alter |
JP10 |
N/A |
|
|
BIOS type select EPROM |
JP13 |
Open |
|
|
BIOS type select 5v flash |
JP13 |
pins 1 & 2 closed |
|
|
BIOS type select 12v flash |
JP13 |
pins 2 & 3 closed |
|
|
Factory configured - do not alter |
JP19 |
N/A |
|
|
Factory configured - do not alter |
JP22 |
N/A |
|
|
Factory configured - do not alter |
JP23 |
N/A |
|
|
Factory configured - do not alter |
JP30 |
N/A |
|
DRAM CONFIGURATION |
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|
Size |
Bank 0/0A |
Bank 1 |
|
1MB* |
(1) 256K x 36 |
NONE |
|
2MB* |
(1) 512K x 36 |
NONE |
|
4MB* |
(1) 1M x 36 |
NONE |
|
8MB* |
(1) 2M x 36 |
NONE |
|
16MB* |
(1) 4M x 36 |
NONE |
|
32MB* |
(1) 8M x 36 |
NONE |
|
64MB* |
(1) 16M x 36 |
NONE |
|
2MB |
(2) 256K x 36 |
NONE |
|
4MB |
(2) 512K x 36 |
NONE |
|
4MB |
(2) 256K x 36 |
(2) 256K x 36 |
|
6MB |
(2) 512K x 36 |
(2) 256K x 36 |
|
6MB |
(2) 256K x 36 |
(2) 512K x 36 |
|
8MB |
(2) 1M x 36 |
NONE |
|
8MB |
(2) 512K x 36 |
(2) 512K x 36 |
|
10MB |
(2) 1M x 36 |
(2) 256K x 36 |
|
10MB |
(2) 256K x 36 |
(2) 1M x 36 |
|
DRAM CONFIGURATION (CON'T) |
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|
Size |
Bank 0/0A |
Bank 1 |
|
12MB |
(2) 1M x 36 |
(2) 512K x 36 |
|
12MB |
(2) 512K x 36 |
(2) 1M x 36 |
|
16MB |
(2) 2M x 36 |
NONE |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
|
18MB |
(2) 2M x 36 |
(2) 256K x 36 |
|
18MB |
(2) 256K x 36 |
(2) 2M x 36 |
|
20MB |
(2) 2M x 36 |
(2) 512K x 36 |
|
20MB |
(2) 512K x 36 |
(2) 2M x 36 |
|
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
|
24MB |
(2) 1M x 36 |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
NONE |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
|
34MB |
(2) 4M x 36 |
(2) 256K x 36 |
|
34MB |
(2) 256K x 36 |
(2) 4M x 36 |
|
36MB |
(2) 4M x 36 |
(2) 512K x 36 |
|
36MB |
(2) 512K x 36 |
(2) 4M x 36 |
|
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
|
40MB |
(2) 1M x 36 |
(2) 4M x 36 |
|
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
|
48MB |
(2) 2M x 36 |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
NONE |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
|
66MB |
(2) 8M x 36 |
(2) 256K x 36 |
|
66MB |
(2) 256K x 36 |
(2) 8M x 36 |
|
68MB |
(2) 8M x 36 |
(2) 512K x 36 |
|
68MB |
(2) 512K x 36 |
(2) 8M x 36 |
|
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
|
72MB |
(2) 1M x 36 |
(2) 8M x 36 |
|
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
|
80MB |
(2) 2M x 36 |
(2) 8M x 36 |
|
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
|
96MB |
(2) 4M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 16M x 36 |
NONE |
|
130MB |
(2) 16M x 36 |
(2) 256K x 36 |
|
132MB |
(2) 16M x 36 |
(2) 512K x 36 |
|
136MB |
(2) 16M x 36 |
(2) 1M x 36 |
|
144MB |
(2) 16M x 36 |
(2) 2M x 36 |
|
160MB |
(2) 16M x 36 |
(2) 4M x 36 |
|
192MB |
(2) 16M x 36 |
(2) 8M x 36 |
|
256MB |
(2) 16M x 36 |
(2) 16M x 36 |
|
Note: Sizes with an * present use only Bank 0A. |
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|
CACHE CONFIGURATION |
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|
Size |
Bank 0 |
TAG |
SL1 |
|
256KB (A) |
(8) 32K x 8 |
(1) 16K x 8 |
Not installed |
|
256KB (B) |
NONE |
NONE |
Installed |
|
512KB (A) |
(8) 64K x 8 |
(1) 16K x 8 |
Not installed |
|
512KB (B) |
NONE |
NONE |
Installed |
|
1MB |
(8) 128K x 8 |
(1) 32K x 8 |
Not installed |
|
CACHE JUMPER CONFIGURATION |
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|
Size |
JP8 |
JP10 |
|
256KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
512KB |
pins 1 & 2, 3 & 4 closed |
Open |
|
1MB |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Note: If SL1 is used, these jumpers are ignored. |
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|
CPU SPEED CONFIGURATION |
|
|
Speed |
JP16 |
|
75MHz |
Open |
|
90MHz |
pins 1 & 2 closed |
|
100MHz |
pins 1 & 2, 3 & 4 closed |
|
120MHz |
pins 1 & 2 closed |
|
133MHz |
pins 1 & 2, 3 & 4 closed |
|
150MHz |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION |
||
|
Speed |
JP9 |
JP12 |
|
1.5x |
Open |
Open |
|
2x |
Closed |
Open |
|
2.5x |
Closed |
Closed |
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CPU VOLTAGE CONFIGURATION |
||
|
Voltage |
JP17 |
|
|
|
3.3v |
pins 1 & 2 closed |
|
|
3.4v |
pins 2 & 3 closed |
|
|
3.55v |
pins 4 & 5 closed |
|
DMA CONFIGURATION |
|
|
DMA |
JP29 |
|
DMA 1 |
pins 1 & 3, 2 & 4 closed |
|
DMA 3 |
pins 3 & 5, 4 & 6 closed |