DDR2 upgrade issues

[ROMESKO99]

Hi everyone ,

Recently I wanted to upgrade my asus a6r notebook (i think its 2006) I bought samsung ddr2 2gb 800mhz ram. When I put it inside of my computer my pc would not boot not even bios even the sreen did not started. I tryed both slots nothing , then I added old 512mb ram into the ram slot and pc booted. CPU-Z is now displaying 2,512 mb of memory. Do I have full acess to this capacity? Or I'm just running on 512mb's? Also the freqencies are different samsung is 800mhz and old one is 667mhz. I dont understand why. Does anyone have a reasonable solution? Thanks a lot =) MB supports up to 3gb of ram

 

[snowctrl]

Sounds like your laptop doesn't support the new RAM you bought.

Use crucial.com system scanner to get the exact RAM type etc your system needs, and stick to that.

 

[The Paladin]

according to : http://www.computer-specifications.com/specifications/ASUS-A6R-Specs.html
This ASUS Laptop can take up to 2.0 GB ram, installed PC2-4200 DDR2 SDRAM SODIMMs.

crucial memory web site states http://www.crucial.com/usa/en/compatible-upgrade-for/ASUS/a6r
Your ASUS A6R system specs as shipped memory Maximum Memory:2GB Slots:2 (2 banks of 1GB)
recommended ram Crucial 2GB Kit (2 x 1GB) DDR2-666 SODIMM CT588916 DDR2 PC2-5300 • CL=5 • Unbuffered • NON-ECC • DDR2-667 • 1.8V • 128Meg x 64 •

full laptop specs found : http://icecat.us/en_in/p/asus/a6r-b040p/laptops-A6R-B040P-453264.html

 

[ROMESKO99]

But I still can't explain why is cpuZ displaying 2gb capacity even bios is displaying 2gb capacity. And computer works properly now. But I dont know if i have acess to the full memory

 

[ROMESKO99]

And rams wich are currently stick in my laptop are original 512 mb 667mhz and 2gb 800mhz and pc works and cpuz is displaying 2gb ram. Does that mean it works without any problem and I have acess to full capacity?