For HP EliteBook 840 G1 850 G1 6050A2560201 Motherboard w/ I3 I5 I7 4th Gen CPU | eBay
Stonetaskin 802523-601 802523-001 For Hp Elitebook 840 G1 Motherboard Upgrade I3 I5 6050a2560201-mb-a03 Uma W I7-4500u Cpu Mb - Laptop Motherboard - AliExpress
For HP ELITEBOOK 840 G1 Motherboard 802516-001 6050A2559101 w/Intel i5-4200U CPU | eBay
HP Elitebook 840 G1 Motherboard Replacement - iFixit Repair Guide
778964-001 For Hp Elitebook 840 G1 850 G1 Laptop Motherboard With Sr1ee I5-4310u Cpu 6050a2560201-mb-a03 100% Tested - Laptop Motherboard - AliExpress
HP Elitebook 840 G1 Disassembly, fan cleaning and thermal paste replacement - YouTube
For HP 840 G1 Motherboard 6050A2560201 SR1ED I5-4300U Mainboard 802511-001 | eBay
For Hp Elitebook 840 G1 Laptop Motherboard Integrated Graphics Card I5-4310u Cpu Motherboard 100% Test - Laptop Motherboard - AliExpress
Amazon.com: MB for HP EliteBook 840 G1 850 G1 Intel i7-4600U Motherboard 802518-001 802518-601 802518-501 : Electronics
HP Elitebook 840 G1 Motherboard Replacement - iFixit Repair Guide