ZENITH DATA SYSTEMS
EXPRESS 5800 EX1200
|
Device Type |
Mainboard |
|
Processor |
Pentium II |
|
Processor Speed |
233/266/300MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
512MB |
|
Maximum Video Memory |
1MB |
|
Cache |
256/512KB (located on Pentium II CPU) |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, ATX power connector, RAID slot |

|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
ATX power connector |
ATX |
SCSI interface |
CN3 |
|
IDE interface LED |
C3 |
IDE interface 2 |
CN4 |
|
Speaker |
C4 |
IDE interface 1 |
CN5 |
|
Soft off power supply |
C6 |
Floppy drive interface |
CN6 |
|
Dc power connector |
C7 |
32-bit PCI slots |
PC1 - PC4 |
|
Dump switch |
CN1 |
RAID slot |
SL1 |
|
Front panel connectors |
CN2 |
VRM connector |
VRM |
|
Note: CN2 includes mouse, keyboard VGA, serial ports (2), & parallel port. |
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|
USER CONFIGURABLE SETTINGS |
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|
Function |
Label |
Position |
|
|
» |
Factory configured - do not alter |
C1 |
Unidentified |
|
» |
Factory configured - do not alter |
C2 |
Unidentified |
|
» |
Factory configured - do not alter |
C5 |
Unidentified |
|
» |
Factory configured - do not alter |
C10 |
Unidentified |
|
» |
Factory configured - do not alter |
C11 |
Unidentified |
|
» |
Factory configured - do not alter |
J18 |
Pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
J20 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
J26 |
Pins 1 & 2 closed |
|
» |
Hard drive LED select separate hard drive activity signals |
J27 |
Pins 1 & 2 closed |
|
|
Hard drive LED select "OR" the 2 hard drive signals |
J27 |
Pins 2 & 3 closed |
|
» |
Flash BIOS write protect disabled |
J28 |
Pins 1 & 2 closed |
|
|
Flash BIOS write protect enabled |
J28 |
Pins 2 & 3 closed |
|
» |
Flash BIOS boot block disabled |
J29 |
Pins 2 & 3 closed |
|
|
Flash BIOSboot block enabled |
J29 |
Pins 1 & 2 closed |
|
» |
Password enabled |
J30 |
Pins 1 & 2 closed |
|
|
Password disabled |
J30 |
Pins 2 & 3 closed |
|
» |
CMOS memory normal operation |
J38 |
Pins 1 & 2 closed |
|
|
CMOS memory clear |
J38 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
J39 |
Pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
J40 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
J42 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
J44 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
J45 |
Pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
J46 |
Pins 1 & 2 closed |
|
DIMM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
32MB |
(1) 4M x 64 |
None |
None |
None |
|
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
None |
|
32MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
None |
None |
|
DIMM CONFIGURATION (CON'T) |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
None |
None |
|
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
None |
|
64MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
64MB |
(1) 8M x 64 |
None |
None |
None |
|
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
None |
|
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
None |
None |
|
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
None |
None |
|
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
None |
None |
|
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
None |
|
128MB |
(1) 16M x 64 |
None |
None |
None |
|
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
None |
|
128MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
None |
None |
|
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
None |
None |
|
176MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
None |
None |
|
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
None |
|
256MB |
(1) 32M x 64 |
None |
None |
None |
|
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
None |
None |
|
256MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
|
272MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
280MB |
(1) 32M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
288MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
320MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
None |
|
448MB |
(1) 32M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
|
512MB |
(1) 32M x 64 |
(1) 32M x 64 |
None |
None |
|
512MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium II CPU. |
|
VIDEO MEMORY CONFIGURATION |
|
Note: The location of the video memory is unidentified. |
|
CPU SPEED SELECTION |
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|
CPU speed |
Clock speed |
Multiplier |
J34 |
J35 |
J36 |
J37 |
|
233MHz |
66MHz |
3.5x |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
|
266MHz |
66MHz |
4x |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
300MHz |
66MHz |
4.5x |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
|
Note: Pins designated should be in the closed position. |
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