Inspiron 1501, CPU upgrade - FSB & Memory Issue?

​RE-POST: As my original post was never answered...​

​"I recently upgraded my Inspiron 1501 from the Sempron 3600 processor to a Turion 64 x 2 TL-60 (TMDTL60HAX5DM). The CPU upgrade itself went fine, and everything is up and running. I have noticed since however, after trying to check specs, with only a half education on the area to boot, that my ram is running rather slow based on readout's from both cpu-z and aida64. They both say my effective dram frequency is 160 MHz (319/320 DDR) yet also state i have 667 MHz RAM installed. I currently have a 2 GB and 512 MB stick in, both PC5300/667 MHz. I also notice my dram/fsb ratio changes depending on CPU load - which ranges from 4 x multiplier to 10 x multiplier, when on 4 x, the ratio is CPU/5 (4/5, which at 200Mhz FSB is 160 I assume?), and when running at 10 x, the ratio is CPU/8 (10/8, which as 200 MHz FSB is 250 MHz, which is just off of the 249.4 MHz benchmark I receive when I test...)​

​Anyway, this just doesn't seem to add up, and I am open to suggestions... should I try installing a dual channel 'kit' or is there something I am missing? Any more info you want, just ask!​

​Unfortunately I did not do any benchmarks or specs before I upgraded ,so I have nothing to compare it to. I have seen posts stating that people can not get their RAM to run @ 667 MHz, that maybe there is a board limitation, but what would cause the limitation I am experiencing? It just seems weird!​

​Also; I thought maybe the memory speed was incompatible with the FSB speed, and thus being limited, since the TL-60 runs the FSB @ 200MHz, so I acquired two 1 GB 800MHz DRAM DDR2 and installed them, hoping to get both the dual memory effect, and hopefully solving this weird DRAM/FSB ratio going on.​

​I got the dual memory effect at least, other then that, the DRAM/FSB ratio is still running the same. This is so weird. If the bus can run at 200 QDR, why can it not run the memory at the same speed? Does anyone have an answer to this?"​

​Someone has to at least have an idea on this...​