Is there a difference in which channel to install RAM A1 B1 or A2 B2?

Question

RAM

I assembled a computer on amd r5 2600, mother asrock b450 gaming k 4, inserted xyper x fury 3200 RAM into 2 channels (8GBx2), in a1 and b1 slot, bsod blue screen constantly crashed, if you don’t touch the computer for a long time (5 hours), then after the display went out, all sorts of attempts (via the keyboard and mouse) to force it to display at least something on the monitor were unsuccessful, when loading, it often climbed into system recovery, the memtest program found errors in memory, and with the xmp profile set to 3200mhc each time you exited The bios started up only 3 times, overloading itself and the food with the speaker several times. Once even uefi hung. The stress test of Aida also did not please with green. (Rearranging Windows, updating the BIOS did not help) After I put the memory into slots a2 and b2 (the same two-channel), everything went off without a hitch. What was the problem? Is there something wrong with the motherboard with slots or what? and if I want to add another 16 gig after scoring all the slots, will I run into the same problem?

Answer 1

2.3 Installing Memory Modules (DIMMs) page 23.