Comment # 3 on bug 919836 from Felix Miata

I tried to upgrade RAM from original 4G to all new 8G. Passing memtest proved
no problem beyond the 2+ hours consumed running it, but 13.1, 13.2 and 13.3 all
would lock up eventually, anywhere between several seconds into init, and
having started SeaMonkey and Firefox in KDE, even after reinstalling the
original RAM. Swapped in motherboard, CPU, NIC from another host, using the
brand new RAM (4G max supported by motherboard). All problems reported here
apparently gone now.

I do wonder how 13.1 managed to mask hardware failure exposed by both 13.2 and
TW.