A warning for any one buying a new computer?

Have you looked inside the PC before this rant?

CPU-Z will record the RAM at half speed. You may notice the term "DDR" - that means "Double Data Rate", and CPUz tells you base frequency. Double the base frequency (DDR, remember) to get actual operating frequency.

Sometimes very fast ram gets picked up at lower speeds by your motherboard. In this case, picked up at 1600mhz. You should be able to correct the speeds in the bios.

Physically checking the RAM modules will tell you what you have - you'll be able to tell from the comedy giant red heat-spreaders.

Edit:

Having read your additional info, they do sound like one to avoid. Complete cowboys.

Just to confirm - Are Palicomp the ones?

That's what you get for buying (custom ordering) instead of building it yourself....

You pay more only to get screwed.

I build my own computers, that way I know exactly what goes in.

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EDIT:

Almost all processors and motherboards support only up to 1600MHz RAM by default. Computers running Windows report the half speed most of the times, which is 800 for the 1600Mhz RAM.

If they did not overclocked your PC (as you said they didn't), than your 2133MHz RAM will only run at 1600MHz speed (reported as 800 by your CPU-Z)

So I guess your only problem is that they promised to overclock and they did not.

To make sure about the RAM, open the side panel on your PC and physically check the RAM sticks (pull one out and look at it).

Last but not least, I strongly advise you not to use IE, as it is the worst browser ever, very unsafe and easy to attack and corrupt.

Use Firefox or Google Chrome.

So you are telling us they use cheap parts thinking that you are to dumb to notice it and running cpu-z check came out different than what the manufacture claim this pc had good job , i use cpu-z all the time also belarc advisor to check the programs and producy keys on my pc and laptop good luck on winning your case