RAM running under speed

[Dimitri]

I have an Apacer 4GB DDR3 1333MHz and I just realized that in task manager under performance in the memory tab it says speed 1066.

Wtf?

Why is it running at that speed? Could it be the MB doesn't support 1333?

 

[beers]

What does it say in CPU-Z? Should say 667 MHz.

The panel in Windows is notoriously inaccurate.

 

[Intel_man]

Also depends on the CPU itself. It might default to 1066 and requires an adjustment in the BIOS to run at 1333.

 

[Calin]

Just turn on XMP in the Bios, that will likely solve it, if it doesn't then there's an incompatibilty