mmm, RAM.

One of the two 4 GB sticks of RAM I had decided to bid a fond farewell to this world a little less than three weeks ago. We swapped them around in the two mobo slots trying while to diagnose this, but since it would not even attempt to boot with the apparently-good RAM in slot B while slot A was empty, we weren't sure whether it was only the other RAM itself (because of a "if you have only one, it has to be A" kind of thing so a failure to boot with good RAM in only B was normal) or whether slot B might also have failed. So in buying replacement RAM I thought it would be prudent to get 2x8GB so if the slot itself was also bad, I could still have 8 GB as before by having it all in slot A. Well, it seems the mobo is OK. *stretches out like a cat into 16 GB of RAM*