Comment 38 for bug 422536

Karmic since two weeks (new installation).
First time it occured after an update (via Synaptic) and reboot today.
Message about ECC (Error Correction Code) was in the logs all along, but no Apport bug report till this moment.
System runs still stable.
History:
Since the message occured in logfiles I did a search on this and acknowledged the GUI system monitor showed 999,9 MB RAM instead of 1024 as before in Hardy. My BIOS also isn't capable of ECC. (Details of sys specs are in the uploaded Apport report)
Related message in logfile was:
Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.

$free
            total used free shared buffers cached
Mem: 1023932 980728 43204 0 59672 399912
-/+ buffers/cache: 521144 502788
Swap: 3478032 0 3478032

$free -m
             total used free shared buffers cached
Mem: 999 957 42 0 58 390
-/+ buffers/cache: 508 490
Swap: 3396 0 3396

As suggested here I ran MEM Test, passed without any errors.
http://ubuntuforums.org/archive/index.php/t-1084863.html

Only Synaptic was open during update.
Commit Log for Fri Oct 16 19:49:53 2009
apport (1.9.3-0ubuntu1) to 1.9.3-0ubuntu2
apport-gtk (1.9.3-0ubuntu1) to 1.9.3-0ubuntu2
apt (0.7.23.1ubuntu1) to 0.7.23.1ubuntu2
apt-transport-https (0.7.23.1ubuntu1) to 0.7.23.1ubuntu2
apt-utils (0.7.23.1ubuntu1) to 0.7.23.1ubuntu2
compiz (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
compiz-core (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
compiz-fusion-plugins-extra (0.8.3+git20090914-0ubuntu1) to 0.8.4-0ubuntu1
compiz-fusion-plugins-main (0.8.3+git20091006-0ubuntu1) to 0.8.4-0ubuntu1
compiz-gnome (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
compiz-plugins (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
compiz-wrapper (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
compizconfig-backend-gconf (0.8.2-0ubuntu2) to 0.8.4-0ubuntu1
cups (1.4.1-4) to 1.4.1-5ubuntu2
cups-bsd (1.4.1-4) to 1.4.1-5ubuntu2
cups-client (1.4.1-4) to 1.4.1-5ubuntu2
cups-common (1.4.1-4) to 1.4.1-5ubuntu2
devicekit-power (011-1) to 011-1ubuntu1
evince (2.28.0-0ubuntu4) to 2.28.0-0ubuntu5
gnome-power-manager (2.28.0-0ubuntu6) to 2.28.0-0ubuntu7
gnome-settings-daemon (2.28.0-0ubuntu3) to 2.28.0-0ubuntu5
libcompizconfig0 (0.8.3+git20090901-0ubuntu1) to 0.8.4-0ubuntu1
libcups2 (1.4.1-4) to 1.4.1-5ubuntu2
libcupscgi1 (1.4.1-4) to 1.4.1-5ubuntu2
libcupsdriver1 (1.4.1-4) to 1.4.1-5ubuntu2
libcupsimage2 (1.4.1-4) to 1.4.1-5ubuntu2
libcupsmime1 (1.4.1-4) to 1.4.1-5ubuntu2
libcupsppdc1 (1.4.1-4) to 1.4.1-5ubuntu2
libdecoration0 (1:0.8.3+git20091005-0ubuntu5) to 1:0.8.4-0ubuntu1
libdevkit-power-gobject1 (011-1) to 011-1ubuntu1
libevdocument1 (2.28.0-0ubuntu4) to 2.28.0-0ubuntu5
libevview1 (2.28.0-0ubuntu4) to 2.28.0-0ubuntu5
libgudev-1.0-0 (1:147~-5) to 1:147~-6
libpolkit-agent-1-0 (0.94-1) to 0.94-1ubuntu1
libpolkit-backend-1-0 (0.94-1) to 0.94-1ubuntu1
libpolkit-gobject-1-0 (0.94-1) to 0.94-1ubuntu1
libudev0 (147~-5) to 147~-6
nvidia-173-modaliases (173.14.20-0ubuntu2) to 173.14.20-0ubuntu3
nvidia-96-modaliases (96.43.13-0ubuntu3) to 96.43.13-0ubuntu4
openoffice.org-thesaurus-de (20080808-1) to 20080808-1ubuntu2
openoffice.org-thesaurus-de-ch (20080808-1) to 20080808-1ubuntu2
policykit-1 (0.94-1) to 0.94-1ubuntu1
python-apport (1.9.3-0ubuntu1) to 1.9.3-0ubuntu2
python-cupshelpers (1.1.12+git20090826-0ubuntu6) to 1.1.12+git20090826-0ubuntu7
python-problem-report (1.9.3-0ubuntu1) to 1.9.3-0ubuntu2
software-center (0.5.2) to 1.0
synaptic (0.62.7ubuntu5) to 0.62.7ubuntu6
system-config-printer-common (1.1.12+git20090826-0ubuntu6) to 1.1.12+git20090826-0ubuntu7
system-config-printer-gnome (1.1.12+git20090826-0ubuntu6) to 1.1.12+git20090826-0ubuntu7
system-config-printer-udev (1.1.12+git20090826-0ubuntu6) to 1.1.12+git20090826-0ubuntu7
ubuntu-wallpapers (0.29) to 0.30
ubuntu-xsplash-artwork (0.8.3-0ubuntu2) to 0.8.4-0ubuntu1
udev (147~-5) to 147~-6
update-manager (1:0.126.3) to 1:0.126.4
update-manager-core (1:0.126.3) to 1:0.126.4
update-notifier (0.89) to 0.90
update-notifier-common (0.89) to 0.90
upstart (0.6.3-9) to 0.6.3-10
xsplash (0.8.3-0ubuntu2) to 0.8.4-0ubuntu1

Hope this helps.