https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285867
--- Comment #15 from Henrich Hartzer <h...@hartzer.sh> --- (In reply to Anthony Williams from comment #14) Very interesting! Thank you for the tip about setting hw.physmem. I did not know that could be done. I reinstalled the two 4GB dimms and I can confirm that I can boot the T500, with SMP, when I use hw.physmem="4G". I tried hw.physmem="6G" and it did not boot, unless SMP was disabled. I'm perplexed as to why hw.physmem="4G" will work, but one 4GB dimm will not. Either way, this is a much better workaround and hopefully gives useful debugging data. -- You are receiving this mail because: You are the assignee for the bug.