Guide

Intel 852GM Platform Power Delivery Guidelines
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232 Intel
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852GM Chipset Platform Design Guide
12.5.8. General LAN Decoupling
The following are general LAN decoupling recommendations:
All VCC pins should be connected to the same power supply.
All VSS pins should be connected to the same ground plane.
Four to six decoupling capacitors, including two 4.7-µF capacitors are recommended
Place decoupling as close as possible to power pins.