You likely installed desktop DIMMs instead of SODIMMs, or the RAM speed is too high (e.g., 3200MHz). The H110 chipset struggles with speeds above 2400MHz. Fix: Buy 2133MHz or 2400MHz DDR4 SODIMMs. Force the BIOS to run at default JEDEC timings.
: Non-ECC, unbuffered DDR3 UDIMM (Standard desktop RAM). Max Capacity : 16 GB (2 x 8 GB modules). Speed : Supports up to PC3-12800 (1600 MHz). hp 2b34 motherboard