LAN Section in Desktop and Laptop Motherboard
LAN Section in Desktop and Laptop Motherboard
LAN Section is used to Networking. In this section use a LAN
and Transceiver IC like 88E8038, BCM5764, RTL8110, RTL8100, RTL8139, Intel
DA82562, RC82540, 3COM, BCM440 LF8423. And also use a Crystal 25.000 MHz.
If this section is not working then create a problem PC Not
Connect another PC.In this condition Check 3.3v on LAN IC , this supply coming
from ATX PWR CN Pin No.1/2. If supply ok but same Condition then check SMD
Resistor Near LAN IC and Transceiver IC,
and also Resold IC But Same Condition finally Replace IC.
Download the Pin Detail from internet Checking Supply Pin
check supply according to pin details
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