CPU does not support Ram speed ?

It's hard to give a good answer without knowing some information...

1. Is your computer branded, or a home build?

--If it's branded, go to the manufacturer's website and look for your model on there.

2. Is it a PC or a Mac?

3. Is it a desktop or a laptop (or something else)?

But, if you want the easiest way of finding out what will work, use the Crucial System Scanner:

http://www.crucial.com/systemscanner/

That will scan your system and let you know what is compatible.

The reminiscence controller works at the side of your processor to determine your FSB (entrance facet Bus) or process pace. Many motherboards will simplest support DDR3 1600 or higher when your method or FSB is overclocked. Just right RAM like G.Skill, Corsair or Mushkin will allow you to feed the modules as much as 2W or in some instances 2.5W so as for you to attain your RAM's maximum capabilities. Because these kinds of memory kits often only require 1.5W to 1.65W, it gives you plenty of headroom for overclocking. That you could investigate your motherboard company's website or contact us and we will be able to normally support you however we will.

It's listed in the user's manual for your motherboard. you can find out your motherboard's make and model from the "system information" utility built into windows. go to the start menu and in the search box type "system information". The search results should list 1 program named "system information". When you run this application it will show you all sorts of info on the right side of the screen. The two you are interested in are "System Manufacturer" and "System Model". This is the make and model of your motherboard. Armed with this info, search online for a user manual.

ram has different speeds for different cpu

in this case you either put to new memory in or really old ones