: The core processing and communication hub.
HP Probook 4330s Repair Help: Learn How to Fix It Yourself. - iFixit hp probook 4430s schematic diagram patched
If you need help with repairing an HP ProBook 4430s: : The core processing and communication hub
: This official HP Maintenance Manual provides step-by-step removal and replacement procedures, part numbers, and diagnostic codes. and diagnostic codes.