I swapped out my 6-6-6-18 memory for a 4-4-4-`1 memory and my freezing seems to ahve gone away. Of note is that my BIOS is supposed to offer 667MHz memory support, but it is not shown as a selection int he BIOS config. I have been running the system around-the-clock with Thunderbird running for 48 hours without a freeze. Also of note is that memtest86+ 4.10 (or the March 2010 verstion) does not run under Grub or Grub2 on this system. I did run memory test as the bootable 4.10 version, and it passed.
I swapped out my 6-6-6-18 memory for a 4-4-4-`1 memory and my freezing seems to ahve gone away. Of note is that my BIOS is supposed to offer 667MHz memory support, but it is not shown as a selection int he BIOS config. I have been running the system around-the-clock with Thunderbird running for 48 hours without a freeze. Also of note is that memtest86+ 4.10 (or the March 2010 verstion) does not run under Grub or Grub2 on this system. I did run memory test as the bootable 4.10 version, and it passed.