I purchased some pc3200 for my computer 2gb in fact now only last week i bought some 512mb moduals and they worked fine but then i read that my computer can take up to 3gb of ram so i thought i'd try some of that! (as you do)

Needless to state all hasnt gone well…. the only thing that i see as diffrent is the mhz the previose ram i got that works is 200mhz and the new stuff is 400mhz what have i done wrong?

Answer:
hi mate

ddr pc3200 ram actually works at 200mhz(http://en.wikipedia.org/wiki/DDR_SDRAM)h… with the double data rate it will appear in some diagnostic utilitys as 400mhz(clock 200mhz x ddr effective = 400mhz frequency)

since the installation of your memory has gone well theres nothing to worry about,however its good to see you’re finding these issues,it shows that you’re good at pc diagnostics and with time you could use this skill and knowledge in the I.T industry

any problems let me know

good luck mate !

Answer:
Normally the RAM defaults to the highest frequency common to the two. If one is at 200 and the other at 400, the 400 will drop to 200 as that’s the highest frequency they have the ability to both do.

But wait - before you panic:

DDR-RAM is 200MHz base, doubled => 400MHz actual. Most manufacturers list the 400MHz number because it's larger, rather than the underlying frequency. Many benchmarking programs, on the other hand, list the underlying frequency for older DDR-RAM, showing it as 200. It's entirely possible (likely, even) that the 200 you see is the underlying frequency, and in fact both sets of RAM are the same speed.

Answer:
Well first of all, all your RAM needs to be the clocked at the same frequency, or it's overall going to slow your system down. Second, the clock speed of your RAM needs to be a multiple of your bus speed (not FSB, I meant the main northbridge bus speed). Thirdly, as long as it matches those constraints, it doesn't really matter what clock speed you choose for your RAM, because faster RAM will have looser timings (meaning it comes out to about the same) but for DDR2 RAM, since it can retrieve 8 consecutive bytes almost as fast as 1, you might want to go with a higher clock rate, because the clock rate determines the latency within bits.

So, same clock speed is important, clock speed as a multiple of bus speed is important, ram bus speed vs latency doesn't make that much difference, and I also wouldn't suggest mixing 512 modules with 1g modules.

Check out CPUZ, it will tell you a LOT about your system, it's a real swift d/l (like 200k or something)

Answer:
PC 3200 is 400mhz and is mostly backward compatible to 2100 2700, if the motherboard supports the timings.

The Bus supporting the DDR400 is a 200mhz bus,but DDR is Double Data Rate so the 400 label

Mixing different types can also cause it not to work, once again timings can be an issue.

Answer:
Sum RAMS do - BUTT - Sum RAMS don't if you get my drift?

If your computer keeps beeping when you try to begin, it's a sure sign that the blended RAMS are BUTTING each other to death!

Go for same clock speed and stop all the IFS and BUTTS!

Answer:
If u have ram running at 200Mhz and you have new ram at 400Mhz, im pretty sure it will drop the 400 to 200 to make it balanced.
Answer:
It is very important to get the correct frequency.