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
HP Elitebook 840 G1 Motherboard Replacement - iFixit Repair Guide
Comp XP MB for HP EliteBook 840 G1 850 G1 Intel i7-4600U Motherboard 730809-501
HP Elitebook 840 G1 Motherboard Replacement - iFixit Repair Guide
HP Elitebook 840 G1 Motherboard Replacement - iFixit Repair Guide
MB for HP EliteBook 840 G1 850 G1 i7-4600U Motherboard 730810-601 802519-6C1