hi all. i need help here because im not sure how to do this by myself.
i have in my system 3 sticks of DDR RAM
now when i run cpu-z it shows me the following
WHAT?!!? my memory is only running at 100mhz. now i thought that for some reason i have a slow stick in there thats slowing the system down....but in cpu-z i went to my memory tab and saw that all three sticks are rated at 200Mhz without any problems or discrepancies. what is going on? and how can i fix it. ive tried bios but theres no options for sync/async mem or anything besides setting the DDRRAM limit.
You need to post your system build to help in analyzing your problem,
i.e. DDR-???, MB, CPU as a minimum. And it would help if you knew the timing settings for your memory sticks both from Bio’s actual and by SPD.
Well if your computer isn't a prebuilt (IE: Dell, Gateway, ect) then you should be able to go into the bios and there will be an option to change the ram:fsb divider. It's right now at 1:2, and you should set it to 1:1. If it doesn't, then I have no idea.
CPU/18 is 1802/18 = 100MHZ, that’s your problem.
You are correct, 64's don’t like more the 2 matched sticks. More so in the older 64's. If you are running 3 sticks you may be disabling DDR support.
Check your ram timings and force them to MANUAL and set it to 400MHz, or Ram Divider of 1:1.
If that doesn’t help;
Try taking the 512 stick out and ensure the other two are in sockets designed to operate in DDR and check to make sure your Bio's are set to Dual Channel support.
See if that helps.
I believe it was only the socket 754 processors that didn't support dual channel. S939 should.
Performance will most likely be better with the 2 sticks in it, but if you want to upgrade, go for 2 identical memory sticks...