2 memory slots on motherboard not working?

Saad Kasu

Reputable
May 4, 2015
26
0
4,540
Till yesterday everything was fine but when I removed my CPU cooler the hyper 212 x as I wanted to upgrade to h80i. I just removed the 212 x and didn't install the h80i as it was late at night and was very tired so when I tried to turn pc on without cpu cooler I got error 15 on gigabyte z87ud5th so I removed memory 2*8gb hyper x and tried different combinations only 1 and three are working 2 and 4 are not( 2 and 4 are nearest to the cpu) I did not do anything to the memory just the cpu I cleaned and applied thermal paste . Will the problem resolve if I put the new cpu cooler or is it some internal problem.

Cpu- i5 4590
Ram- 2*8 hyper x 1600mhz
Gpu - gtx 1060
Motherboard- Gigabyte z87 ud5th
Psu- Corsair rm850i