User Guide
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MX3S-U / MX3SP-U ............................................................................................................................... 1 
What’s in this manual ......................................................................................................................................................2 
You Must Notice ..............................................................................................................................................................8 
Before You Start ..............................................................................................................................................................9 
Overview .......................................................................................................................................................................10 
Feature Highlight ...........................................................................................................................................................11 
Quick Installation Procedure..........................................................................................................................................15 
Motherboard Map ..........................................................................................................................................................16 
Block Diagram ...............................................................................................................................................................17 
Hardware Installation..................................................................................................................... 18 
About “Optional” and “Upgrade Optional”… ...................................................................................................................19 
JP14 Clear CMOS Data.................................................................................................................................................20 
CPU Installation.............................................................................................................................................................21 
JPX2 EEPROM Select Jumper ......................................................................................................................................24 
CPU Jumper-less Design...............................................................................................................................................25 
CPU Fan Connector (with H/W Monitoring) ...................................................................................................................29 
DIMM Sockets ...............................................................................................................................................................30 
Support 10/100 Mbps LAN onboard...............................................................................................................................32 










