Dual channel memory problem

[ZahiC]

Hi all,

I've recently got two identical memory sticks of Kingston DDR2-800, 1GB each.
The memory works great when I place it in different channels, and, as expected, it works in a single channel mode (with 667).
When I try to place the sticks in the same channel to get a dual channel mode, I had the three beeps that indicate a memory problem.

My motherboard is D945PSN, it supports up to 667 memory speed. As I understand there shouldn't be any special problem for the memory to work in a dual channel in 667 speed each.
My BIOS version is not updated but I have passed all over the Releases notes for the BIOS update and it doesn't seems to be any update related to memory problems.

Any ideas for possible problems?

thanks

 

[ghmage]

You want a stick in each channel (that's different channels) for dual channel mode. Putting both sticks into one channel would only be one channel.

 

[ZahiC]

Yea.. sorry, I guess you right..

In other words,
When the sticks are in same color slots it beeps... any ideas why?

 

[ghmage]

Not sure, you could try clearing the CMOS.
I looked at the following - http://www.intel.com/support/motherboards/desktop/sb/cs-010249.htm and it seems that 3 beeps reports a "Base 64 K memory failure". The linked page has some information on what to try to remedy the error.