Update of add-on memory for laptop CQ57

Regarding the upgrade memory on a laptop Compaq Presario CQ57-229WM with DDR3/1333 MHz.  Product number: LW437UA #ABA.  And I am using Windows 7 64 bit Home Premium edition.

I want to improve my memory of current populated two modules (1024 × 2) two total concert, for a total concerts three of memory by replacing a module of a concert with a module of two concert.  New configuration would be: 1024 x 2 048 and 1 x 1.

However, the user guide States: "To use a dual-channel configuration when adding a second memory module, make sure that both modules of memory are identical."

By upgrading to one of the 2 GB modules and losing two "dual-channel configuration" will degrade any benefit from the extra memory?

In addition, the HP Support Assistant reported memory as units 1 and 2 with Samsung 1066 MHz.  Maintenance and Service Guide however, 1333 MHz.   Is it important when I order the memory?

One last question: if I may add a 2-gig module, does it matter which slot it should occupy?

I would appreciate your advice.

Hello

RAM sticks are very cheap now, your machine is running 64 bit OS why not go for 8 GB (2 x 4 GB).

(a) If you want to reuse 1 stick, you must order the same speed and of course to buy Samsung.

(b) if uneven, location 0 (or slot) 1 contains normally greater ability than the slot 1 (or slot 2).

(c) unless you have a tool to measure, you do not feel the difference between single and double channel, but you can see your machine multi files/application under open a little more quickly when going from 2 GB to 3 GB.

Go once again for 8 GB.

Concerning

Tags: Notebooks

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