Quote Originally Posted by drunkenmaster View Post
don't suppose you could redo bandwidth test at stock fsb, and stock fsb.

i'm still only getting 5.3gb/s ish, with mem at 800mhz, 4,4,4,15. not used sisoft in a good few years but i seem to recall it scaling with speed, though when i bump just cpu speed by 300Mhz i get same results, i get the feeling it is just stuck in single channel mode but can't seem to get it to run dual channel.

does AOD or cpu-z actually show your mem is in dual channel at all?

Sure thing. I ran it againt I got 8153 this time. I think you are stuck with single channel.

3 things I have personaly seen create this.

1.-Odd number 1 or 3 sticks of Memory, it must be even numbers 2 or 4 sticks
Make sure your computer sees all your RAM, you can have a bad stick or might need to re-seat them.
2.-Back in the DDR1 days if you Mixed Single sided with double sided Ram there was a chance that it would not see all the RAM or it would not even work, but as far as I know DDR2 is all double sided. Im mixing different Brands of DDR2 in this PC, they differ in timings, Speed and even Voltage but they all work fine.
3.-Its your Bios. I personaly had not seen this untill I started flashing bioses with the crappy Built-in utilities that are in the Bios like ASUS EZ flash. For some weird reason with some flashes it would be stuck at 64bit no matter what... and re-flashing the bios fixed it and I got my 128bit dual channel back. Also some Bioses have a setting that you can change that will allow it ot check if it can do Dual channel, if it was disabled by accident you will always have Single-Channel.

Good luck m8t