• Bad Ram Slot Symptoms

I have been meaning to post this for a while, here goes finally.

This is the most likely cause behind a damaged RAM. It is also possible that the memory module is fine, but one or more memory slots on your motherboard are defective, hindering the RAM's performance. The defect may even be so bad that it damages the memory stick. Hi Madhur, I recently upgraded my pc having 4gb RAM with an additional 4gb RAM with 64bit OS. It worked fine for 4 days. Then the old ram got faulty. I tested in both the slots but didnt work. I tried the OVEN method yet it didnt work. Is it a case of incompatibility. Can this RAM be repaired or should i go for a new one. HP Slimline Desktop - 260-a010 (ENERGY STAR) OOBE, 4 GB RAM installed on the PC by default. I am looking to upgrade the RAM to 16GB Before doing that, I wanted to check both the RAM slots, (motherboard has only 2 RAM slots.) I placed the 4GB RAM on the secondary slot and the PC did not boot or det. Did I damage the memory cards somehow when I stuck them in the DDR3 slots and turned on the computer? Very well could be. The pins on DDR4 don't match DDR3. Forcing the cards in may have damaged them. I couldn't start the computer even after switching back to the old memory cards. You probably damaged the memory slots. Can I still use the.

I have a lot of system building experience, and generally held the belief that bad RAM slots on motherboards are uncommon. The first one I encountered was a couple of years ago - I opened up a brand new ITX celeron board and I eventually discovered that one of the RAM slots was bad. The motherboard wouldn't boot with any RAM installed in one of the two RAM slots on the motherboard - remove RAM from that slot, and the system booted fine with RAM in the other slot only. (Of course I had been storing the board for long enough that it was out of warranty, but that's another story...) I suspected a bad solder joint or tin whisker somewhere on the bad RAM slot, but my soldering iron was misplaced a while ago, and a visual inspection of the underside of the board looked OK.
I have been testing more boards than I used to over the past year, and I have found a number of other boards which have bad RAM slots, so I was wondering how many bad RAM slots others here have run into on otherwise good motherboards.
Also, has anyone ever successfully fixed a bad RAM slot, say with a solder reflow?
So far, in terms of failure modes with bad RAM slots, either any RAM in that slot is not recognized and ignored, or else the system won't boot with any RAM in that slot, either locking up during POST or black screen before POST, sometimes with beeps. Any time I have had memtest rack up errors, I have eventually traced it to an actual bad stick of RAM, but has anyone else noticed bad RAM slots causing other symptoms?
On dual processor Xeon boards I have further findings:

• If the blue (primary) RAM slot in a channel is bad, that whole channel is unusable
• If the first blue slot for a CPU is bad, that CPU socket is unusable
• If a non-blue slot is bad, usually only that slot is bad

Bad Ram Slot Symptoms

Does anyone else have any experiences to add?