I did. I have two 512 megabyte sticks not running in dual channel (I changed it this morning to see if it would help). The voltage for the RAM was at 2.7 volts. I know that it's my RAM, though, my CPU is not running over 44 degrees Celsius at load, but every time I go into Far Cry with all settings up all the way, after a few seconds it will just stop and repeat the sound over and over again. Sometimes it will correct itself, but most times it just freezes and I have to reset.
I still can't find a CPU/RAM ratio/divider anywhere... I don't think it is in my BIOS. I have an Asus A8N5X motherboard for the record, with the newest BIOS available.
I changed the "memclock index value" from 400 MHz to 200 MHz. Still, no luck. For normal use and AquaMark3, I got everything okay (went through the tests) and got a score of 86,335. But, I can't play 5 seconds of Far Cry. I changed everything back right now until I know more of what I'm doing.