u/BlackburnT800

So guys my pc is not turning on.There are 3 long beeps and a red led switches from cpu to dram and stays on dram after turning it on.I tried cleaning the ram connections with a rubber and the slot,removed the CMOS battery,updated bios to the latest but nothing helped

My pc was like this since like 4 months but today it turned on upon repeated restarting after showing "a required device is not connected or can't be accessed"

(My specs-msi b450 tomahawk max 2,2x8gb ddr4 xpg adata gammix ram,r7 2700,xpg gammix s11pro 256gb nvme which is a replacement unit)