I had two boards that I needed to return it to the vendor due to code 53. Memory has been changed and still with the problem. The third board when completed the hardware installation and I turned on the system, it started and turned off then restarted and recognized 16 GB and was able to go to the BIOS and Windows. I had the memory on slot 2 and 4 slot dual channel memory configuration. The memory is listed under qualified Vendors Lists as CMK32GX4M4B3200C16, 32 GB (4x8GB) DS. The difference with mine is that I have 16 GB instead of 32GB as CMK16GX4M2B3200C16. My first question before continuing what happened is if I do not have 32 GB would that trigger code 53 that means invalid memory type or incompatible memory speed?
The computer was doing fine but overclocking over 4.6 was not stable with RealBench 15 minutes test in spite adequate temperatures. I decided to change the memory to slots to one and three to be sure they are working as two and four were. That triggered code 53 and beep of no memory. I tested two and four and it was not working anymore. I tried later and recognized only 8 GB. That was my experience of the previous boards. I tested one memory at time and did not work, code 53 triggered. Later I tried slot 4 only and posted. I tried the other memory and posted too. Therefore, memory is good. It is something with the motherboard. I tried others slots, three, two, and one and back to four, again code 53 reappeared, no working anymore again. Then, later I tried again slot four and decided to post. It looks erratic code 53. It is definite the motherboard. What is the cause of code 53? Does anyone have the same experience, what is the solution? Is a factory defective motherboard or all I need to place 32GB of memory? Should I have the motherboard replaced again and go to the fourth? The first motherboard had a newer serial number. The last two have been older than the first one. I tried to get newer one but it did not happen. Moreover, the second one had a white area in a circuit between the CPU and memory. I knew that I would have problem and I was right. Right away, I had code 53.