Bad ram? No, just needs to be reseated.

http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?CategoryID=1&DetailID=685&DetailName=Feature&MenuID=24&LanID=9

5 beeps = ?

http://www.bioscentral.com/postcodes/awardbios.htm

only post codes -- no post code reader.

remove ram, eraser the contacts and then replace.

fixed.

every 15 second mode

aliasing problems (full second resolution timing) coming from motion events turns out to be the limiting factor:

/usr/local/bin/on_event_start:

LAST=$(cat /tmp/last_nsec)
# NS resolution counter:
NOW=$(awk 'NR == 3 { print $3 }' /proc/timer_list)
DELTA_MS=$(( (NOW - LAST) / 1000000 ))
echo $NOW > /tmp/last_nsec
echo $DELTA_MS > /tmp/last_ms_per_wh

/root/wattvision:
POST_DATA1=(as before)
while true ; do
  POST_DATA2="time=$(date -u +%Y-%m-%dT%H:%M:%S)"
  POST_DATA3="ms_per_wh=$(cat /tmp/last_ms_per_wh)"
  POST_DATA="${POST_DATA1}&${POST_DATA2}&${POST_DATA3}"                
    
  wget -q -O - --post-data="${POST_DATA}" http://www.wattvision.com/api
  code=$?                     
  echo $POST_DATA3, return code: $code     
         
  sleep 17
done

Next up - patch motion to allow events to be of a sub-second interval.