MECER CORPORATION
B880
|
Processor |
SL80486SX/80486SX/CX486DX/SL80486DX/80486DX/SL80486DX2/ 80486DX2/P24D/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Contaq |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256/512/1024KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Auxiliary keyboard connector |
JP1 |
Turbo LED |
JP59 pins 11 - 12 |
|
External battery |
JP3 |
Green PC LED |
JP59 pins 13 - 14 |
|
External battery |
JP4 |
Turbo switch |
JP59 pins 16 - 17 |
|
Green PC connector |
JP6 |
Reset switch |
JP59 pins 19 - 20 |
|
Power LED & keylock |
JP59 pins 1 - 4 |
32-bit PCI slots |
PC1 - PC3 |
|
Speaker |
JP59 pins 7 - 10 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
CMOS memory normal operation |
JP2 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP2 |
pins 2 & 3 closed | |
|
» |
PQFP CPU disabled |
JP33 |
Closed |
|
PQFP CPU enabled |
JP33 |
Open | |
|
» |
PCI clock delay select 1 delay |
JP43 |
pins 1 & 2 closed |
|
PCI clock delay select 3 delays |
JP43 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
|
2MB |
(1) 256K x 36 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(1) 1M x 36 |
|
5MB |
(1) 1M x 36 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
|
8MB |
(1) 1M x 36 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 256K x 9 |
(1) 4M x 36 |
|
17MB |
(1) 4M x 36 |
(4) 256K x 9 |
|
20MB |
(4) 1M x 9 |
(1) 4M x 36 |
|
20MB |
(1) 4M x 36 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
|
32MB |
(1) 4M x 36 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
NONE |
|
65MB |
(4) 256K x 9 |
(1) 16M x 36 |
|
65MB |
(1) 16M x 36 |
(4) 256K x 9 |
|
68MB |
(4) 1M x 9 |
(1) 16M x 36 |
|
68MB |
(1) 16M x 36 |
(4) 1M x 9 |
|
80MB |
(4) 4M x 9 |
(1) 16M x 36 |
|
80MB |
(1) 16M x 36 |
(4) 4M x 9 |
|
128MB |
(4) 16M x 9 |
(1) 16M x 36 |
|
128MB |
(1) 16M x 36 |
(4) 16M x 9 |
|
DRAM JUMPER CONFIGURATION | ||
|
Type |
JP10 |
JP11 |
|
Bank 0 = 30-pin & Bank 1 = 72-pin |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Bank 0 = 72-pin & Bank 1 = 30-pin |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Bank 0/1 = double side 72-pin |
Open |
pins 1 & 2, 3 & 4 closed |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
256KB |
(4) 64K x 8 |
NONE |
(1) 64K x 8 |
|
512KB |
(4) 64K x 8 |
(4) 64K x 8 |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(1) 32K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP49 |
JP50 |
JP51 |
|
128KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
Open |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
256KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
Open |
|
512KB |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
|
512KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
1MB |
pins 2 & 3 closed |
Open |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
JP35 |
JP36 |
JP41 |
JP52 |
|
80486SX |
1 & 2 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
|
SL80486SX |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
|
CX486DX |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
|
80486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
|
SL80486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
|
80486DX2 |
1 & 2 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
|
SL80486DX2 |
2 & 3 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
|
P24D (WB) |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
|
P24D (WT) |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2, 3 & 4 |
|
Pentium Overdrive (WB) |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
|
Pentium Overdrive (WT) |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
|
Note: WB = write back & WT = write through. Pins designated should be in the closed position. | ||||
|
CPU TYPE CONFIGURATION | ||||
|
Type |
JP53 |
JP55 |
JP56 |
JP57 |
|
80486SX |
Open |
Open |
Open |
Open |
|
SL80486SX |
1 & 2 |
Open |
3 & 4, 5 & 6 |
Open |
|
CX486DX |
2 & 3 |
2 & 3 |
4 & 5 |
5 & 6 |
|
80486DX |
Open |
2 & 3 |
Open |
Open |
|
SL80486DX |
1 & 2 |
2 & 3 |
3 & 4, 5 & 6 |
Open |
|
80486DX2 |
Open |
2 & 3 |
Open |
Open |
|
SL80486DX2 |
1 & 2 |
2 & 3 |
3 & 4, 5 & 6 |
Open |
|
P24D (WB) |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4, 5 & 6 |
2 & 3, 4 & 5 |
|
P24D (WT) |
1 & 2, 3 & 4 |
2 & 3 |
3 & 4, 5 & 6 |
1 & 2, 4 & 5 |
|
Pentium Overdrive (WB) |
1 & 2 |
1 & 2 |
5 & 6 |
3 & 4 |
|
Pentium Overdrive (WT) |
1 & 2 |
1 & 2 |
5 & 6 |
1 & 2 |
|
Note: WB = write back & WT = write through. Pins designated should be in the closed position. | ||||
|
CPU SPEED CONFIGURATION | |||||
|
Speed |
JP17 |
JP22 |
JP39 |
JP40 |
JP47 |
|
25MHz |
Closed |
Closed |
1 & 2 |
2 & 3 |
2 & 3 |
|
33MHz |
Closed |
Open |
2 & 3 |
1 & 2 |
2 & 3 |
|
40MHz |
Open |
Open |
1 & 2 |
2 & 3 |
1 & 2 |
|
50iMHz |
Closed |
Closed |
1 & 2 |
2 & 3 |
2 & 3 |
|
50MHz |
Open |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
|
66iMHz |
Closed |
Open |
2 & 3 |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JP60 |
|
0 wait states |
Open |
|
1 wait state |
Closed |
|
BUS SPEED CONFIGURATION | |
|
CPU speed |
JP61 |
|
<= 33MHz |
Open |
|
> 33MHz |
Closed |
|
PCI IRQ CONFIGURATION (IRQ3) | |
|
IRQ |
JP10A |
|
IRQ3 PCI compliant |
pins 1 & 2 closed |
|
IRQ3 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ4) | |
|
IRQ |
JP10B |
|
IRQ4 PCI compliant |
pins 1 & 2 closed |
|
IRQ4 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ5) | |
|
IRQ |
JP10C |
|
IRQ5 PCI compliant |
pins 1 & 2 closed |
|
IRQ5 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ7) | |
|
IRQ |
JP10D |
|
IRQ7 PCI compliant |
pins 1 & 2 closed |
|
IRQ7 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ10) | |
|
IRQ |
JP10E |
|
IRQ10 PCI compliant |
pins 1 & 2 closed |
|
IRQ10 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ11) | |
|
IRQ |
JP10F |
|
IRQ11 PCI compliant |
pins 1 & 2 closed |
|
IRQ11 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ12) | |
|
IRQ |
JP10G |
|
IRQ12 PCI compliant |
pins 1 & 2 closed |
|
IRQ12 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ15) | |
|
IRQ |
JP10H |
|
IRQ15 PCI compliant |
pins 1 & 2 closed |
|
IRQ15 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ9) | |
|
IRQ |
JP10I |
|
IRQ9 PCI compliant |
pins 1 & 2 closed |
|
IRQ9 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ6) | |
|
IRQ |
JP10J |
|
IRQ6 PCI compliant |
pins 1 & 2 closed |
|
IRQ6 PCI non compliant |
pins 2 & 3 closed |
|
PCI IRQ CONFIGURATION (IRQ14) | |
|
IRQ |
JP10K |
|
IRQ14 PCI compliant |
pins 1 & 2 closed |
|
IRQ14 PCI non compliant (1 card installed) |
pins 2 & 3 closed |
|
IRQ14 PCI non compliant (2 cards installed) |
pins 2 & 4 closed |
|
PCI COMPLIANCE CONFIGURATION | |
|
Slot |
JP7 |
|
Slot 1 compliant |
pins 1 & 2 closed |
|
Slot 1 non-compliant |
pins 2 & 3 closed |
|
Slot 2 compliant |
pins 4 & 5 closed |
|
Slot 2 non-compliant |
pins 5 & 6 closed |
|
Slot 3 compliant |
pins 7 & 8 closed |
|
Slot 3 non-compliant |
pins 8 & 9 closed |
|
Slot 3 non-compliant * |
pins 11 & 12 closed |
|
Note: * Slot 3 has a second non-compliant PCI card installed. | |