Re: PC's RAM memory explanation

Antonio,

The speed of the memory (400 or 333) should match the speed of your FSB (front side bus) on your computer. If you install memory that's faster than the FSB of your computer, it will still run at the FSB speed -- since that's the only speed your computer is capable of.

If you try to install memory that's slower than the FSB, it won't work at all.

Therefore mixing the 400 & 333 memory will entirely depend on your PC. If it has an FSB speed of 400, it won't work. If it has an FSB of 333, then the memory will run at 333 regardless of whether you have 400 speed memory installed or not.

I guess what I'm saying is: It's the speed of your computer's FSB that matters, not the speed of the memory.


Antonio Fernandez-Vicenti wrote:

Scott Klement escribió:
Scott , thanks for your clarifications and the link!
Any suggestions about my second question?
Thanks,
Antonio

But, anyway... assuming you're only working with Kingston ValueRAM and you want to know details about Kingston's part numbers for ValueRAM, you can find details here:
http://www.valueram.com/datasheets

2- Can I mix KVR400 and KVR333 on same PC? If yes, am I wasting 400's speed in the whole lot (would all run at 333?), or is the difference negligible or even better since I'm adding additional (333) memory to the 400 dimm?

--

Antonio Fernandez-Vicenti
afvaiv@xxxxxxxxxxxxxx