Amazon.com: Motherboard Notebook Motherboard Computer Fit for HP PROBOOK 4740S 4441S 4440S 4540S Laptop Motherboard with HM76 Support I3 I5 I7 : Electronics
HP Probook 4540s 15.6" Genuine Laptop Intel Socket Motherboard 683495-001
HP ProBook 440 450 G2 Laptop Motherboard w/ Intel Core i5 Processor LA – Primelec