Per Lenovo ThinkPad E14 Gen 2 5B21C71884 i7-1165G7 MX450 scheda madre computer portatile
Due to transportation safety, CMOS battery cannot be installed normally. For Lenovo:FRU:XXXXXXX or 5BXXXXXXXX. box contains: is only one motherboard. In order to avoid buying the wrong, leading to compatible processors.