how do i know my memory frequency in my laptop(512+512)?

Question

i have acer aspire5580 laptop.it have 512mbddr ram.now i got another 512mb ddr ram.i can add that 512mb ram memory in memory card 2nd slot.now my laptop shows ,my system have 1 gb ram.
but my firend says,both memory card r in same brand & same frequency only,its works good.otherwise there is no use of ur 2nd 512mb ram.its not boost performence of ur pc.1st check ur both memory card brand & frequency.is it wright?
i dont know more about memory cards.anybody knows,how do identify my both memory card brand & frequency?

Answer 1

Check with CPUZ:
http://www.cpuid.com/cpuz.php

Matched pair usually runs in dual channel mode (faster) but not all applications really take advantage of the wider memory bandwidth.

Answer 2

Read the Acer User Manual.

Then, go to:

http://www.crucial.com/

Use their "Memory Advisor Tool" to identify your PC's RAM by make and model OR by Scanning your PC (Cool!).

Answer 3

Download and install this and run it (its free)

http://filehippo.com/download_everest_home/

For memory, click motherboard then SPD
It will show brand, CAS latency bus speed. To get memory bandwidth click motherboard then motherboard.

Video, click Display