How to check if a RAM slot is working?

Question

motherboards

There is a motherboard with 2 slots for RAM. And there are 2 sticks of RAM.
Everything worked well, but after I decided to clean the block (I removed and cleaned the cooler, smeared thermal paste, took out the processor), the computer stopped starting when there was memory in both slots (that is, it started, but without an image). When the RAM is only in the first slot, it works. If only in the second slot or both, then no. I checked both dies, they work in the first slot.
After all this, I began to examine the motherboard, I did not find swollen capacitors, broken tracks either, the only one antennae on the socket was slightly skewed away from the others.
Is the problem in the mustache possible or not? If yes, then fix it? If not, where and how to troubleshoot?
Thanks in advance!

Answer 1

Of course, cool pros will climb into the socket with a super-fast oscilloscope and find the same defect. But for a simple user, there is only one way - this is the exclusion method . We take a few sticks of memory and stick them into the available slots. Planks in serviceable slots will confirm their notorious serviceability, and where they do not start, this is the defective slot.
Actually, you have already done all this. It is only advisable to confirm your suspicions by taking more of both slots and slats - a couple of pieces are not enough for complete certainty.

Answer 2

"Usyk on the socket" - is it a ro processor? If it is damaged, then it is possible that the contact may be bent in the problem slot. To get started, take a flashlight and carefully check the legs inside the RAM slot. Under bright lighting, a bent leg is more likely to be visible if it is really bent.