Half my memory slots suddenly not working right

Seems to possibly indicate a defective Motherboard DIMM Slots 0 Likes

only adding ram into slot 3 and 4 would work but thats no use With a lot of head scratching and prodding, the computer managed to boot with

dimm2 slot A bad memory slot is an uncommon but not unheard of mode of motherboard failure You can install a single 8 gig module to upgrade to 8 gb using one slot It

dimm slot not working Solved: After cable management not working 3,4 ram slots If I use them DRAM debug light up Before worked fine How do I fix it?