Memory and Bus Speed

[jmFightSpam]

Hi,

I have an old Dell Inspiron 600m. Originally it came with 512 MB RAM (2 x 256MB), running at 266 MHz (PC2100).

I bought a 1 GB DIMM, PC2700 333MHz to increase the RAM.

I know that if I mix the DIMMS, the speed of the RAM will run at the slower speed, in this case 266 MHz.

But, if I just had the 1GB module installed, shouldn't the RAM run at 333MHz? I looked in the BIOS and it still shows it running only at 266MHz.

My FSB is shown at 400MHz, if that makes any difference.

Thanks.

 

[bigdogchris]

Your FSB and Memory bus can be at different speeds. FSB is only from the CPU to the ram. The ram can have a different speed itself. Your motherboard may only support 266 mhz memory, or you may need to manually change it. Try resetting the bios to defaults.

BTW, you won't notice a difference between 266 and 333, so don't feel that you're missing out on anything.