my new RAM running dual mode?

[niggles]

I have two sticks of mismatched RAM and the bios says they are running in Dual mode. 1 stick is a gig, and the other is 256. It's an Inspiron 6000. Does DDR 2 allow mismatched sizes for RAM to run in dual mode, or is this simply a glitch that simply doesn't show what is really happening?

 

[niggles]

bump

 

[bacillus]

suggest you run cpu-z and see what it says.
technically you shouldn't be running in dual mode.

 

[Fox5]

It's asynchronous dual channel mode. Intel's new platforms support both synchronous and asynchonous modes. I don't know what the exact difference is, but async performs better than none at all, and synchronous performs better than async.

 

[niggles]

interesting. I wonder what the performance hit is between sync and a-sync. Just did a quick look and can't find much.

 

[fbrdphreak]

I ran Sandra to bench 2x256, 1x512, & 1x256+1x512. No diff in bandwidth. You see so little improvement in dual channel Pentium M it won't matter anyway.

 

[Fox5]

I'd think the primary differences would occur when using integrated graphics, at least in the test I saw using 3dmark there was like a 200 mark improvement using async over none, and then another 200 using sync over async.