...I know that... but does the CAS latency affect the compatibility as well? Say for example I'm using cl2, I buy cl3 RAM, will it still work?

CL can be set in your motherboard settings. What the RAM packaging has on is (CL2, CL2.5, CL3) is the recommended max. You can go under those things, but you're risking stability. You can go over (slower) without any real risk.

Cas Latency will not effect compatibility at all. It will only effect the response rate of the memory chips themselves. If you have a motherboard which can't cater to the full reponse speed of a particular RAM module, the module will work at an accordingly reduced response timing.

Don't you mean increased response timing Catweazle? :p

The CL (and other timings) can be a problem if you have sticks of RAM with a different rating. If you try, for example, running CL3 RAM with CL2 RAM, you may experience instability if the cheaper RAM cannot handle CL2. Then of course you just change to timings that both sticks can handle.

so cl2 is the fastest am I correct?

The simple answer is 'yes', even though that's not technically correct.

If you have two RAM modules, in identical systems, and both modules set to operate at a clockspeed of, for example, 400MHz, then the system with its RAM timing set to cas latency 2 will outperform the system with its cas latency set to 3. The difference between the two RAM modules is quality, rather than speed. Both operate at the same clockspeed, remember.

But the but the higher quality module, which is capable of operating at the improved RAM timings, will work with stability in a system capable of using the faster timings. The RAM is still operating at the same speed, but the system is taking less time to communicate with it.

It's sorta like how some people are better than others at picking up everything a Rap singer is saying!

Thank you guys, all of you so much.


I am now 1 point wiser.

Slade

What if you change the input unit IN YOUR COMPUTER to accomadate 200 pins instead of 144?? (Take one from an DDR TOWER and put it in yours)

I dont see any reason why it wouldnt work then.......

Just thinking out loud here

too loud ,and responding to a 4 yr old post

neg repped