I have an Abit IL9 Pro motherboard. I've been frustrated, because even though I have Windows 7 x64, I've been limited to 3.12GB of RAM. The BIOS would output that it only detected 3200mb during the post message.
So I decided to update my BIOS. Everything updated successfully, and the post message now correctly states that 4096mb of RAM is detected. The problem is that there is a new message as well:
DRAM frequency has been downgraded, canse 50 Ohm ODT unsupported
Now Windows 7 states that there is only 2.87GB of RAM usable (4.00GB total), which is worse than when I started!
I am using 2 sticks of PC2-4200 RAM (533 mhz, 2GB per stick, here is a link to the specific model). I've tried running the computer with only 1 stick in at a time, and I've tried using both sets of ports for the RAM on the motherboard, but no matter what I do the message doesn't go away.
What can I do to get full use of my RAM and have my system running as it should?