[ltp] Memory bandwith result from Memtest 86+?

[linux-thinkpad@linux-thinkpad.org]

Hi all:
	I recently upgraded the memory into two Corsair 1G sticks on my 
thinkpad T43, and as routine when upgrading, I tested my memory with 
memtest 86+. A line in the screen piqued my interest: it shows that my 
memory bandwidth is "1454MB/s". I'm not a memory expert at all, but my 
two identical memories are VS1GSDS533D2, PC2-4200 DDR2 ram at 553MHz, 
identical with thinkpad spec. According to this
"http://en.wikipedia.org/wiki/List_of_device_bandwidths#Memory_Interconnect_Buses_.2F_RAM"
I should get 4.267 GB/s for single channel PC2-4200 memory, and double 
that for dual channel. Does T43 support dual channel technology?  In any 
case, my memory bandwidth is barely more than a third of the even the 
single channel figure quoted on wikipedia. Did I just somehow bungled my 
memory upgrades?
	What kind of application will make memory bandwidth its main 
bottleneck?
	Thanks for info.
								Jiang