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XEN-LS Venus IV Motherboard Layout (Rev 1.1.12)

 


RAM Configurations

XEN-LS 386SX-16

On-board

Module

Product Code

Total

1MB

1MB

1MB

2MB

XB48037

3MB

1MB

4MB

XB48038

5MB

1MB

8MB

XB44940

8MB

  
XEN-LS 386SX-20

2MB

2MB

2MB

2MB

XB48036

4MB

2MB

4MB

XB48038

6MB

2MB

6MB

XB48039

8MB

  
XEN-LS 486

4MB

4MB

4MB

2MB

XB48036

6MB

4MB

4MB

XB48038

8MB


Ethernet Options

On-board Thick and Thin Ethernet


Drives

MB Make Model Type Part Number
52 Quantum LSP52AT 30 IDE KR47540
105 Quantum LPS105AT 31 IDE KR47539
240 Quantum LPS240AT 22 IDE 14799231


Switch Settings

SW1

Switch

Function

Off

On

1

Password

Disable

Enable

2

Serial COM 1

Disable

Enable

3

Floppy

Disable

Enable

4

Hard Disk

Disable

Enable

5

Serial COM 2

Disable

Enable

6

Ethernet

Disable

Enable

7

Parallel Port

Disable

Enable

8

VGA *

Disable

Enable

* When disabling on-board VGA the Password (SW1,1) must be set to Enable.

 

Mono / Colour Selection
 

SW2

Colour

Mono

 

SW3 & SW4
Motherboard Ethernet - Fitted

Motherboard Ethernet - Not fitted

 

SW5 - 486 ONLY

Cache On

Cache Off


Additional Options

Processor

Co-Processor

Product Code

386SX-16

80387SX-16

XB42663

386SX-20

80387SX-20

KR45557

486SX-20

80487SX-25

XB48848


Rear Panel


CMOS Discharge

Remove jumper PL23 near the battery at the front of the system. After removing this jumper, CMOS may be drained by shorting the two points labelled TPVBAT1 and GROUND1 using a 10 Ohm resistor.


 

Computing for a Connected World