i think i have problem while upgrading Ram

i bought Corsair DDR2 667mhz 4gb (2x2gb 200-pin sodimm memory modules)
and put it into HP dv6768se from bestbuy.
After opening it up and putting in the modules, i turned may laptop on again.
But then memory(RAM) only appears to be 3231 mb.
Did i do something wrong? any suggestion why this happened?
Thank you for reading this.

 

32-Bit operating systems detect only 3.5 GB,

It reads 3231 mb because of Binary prefixes

http://en.wikipedia.org/wiki/Binary_prefix


its the same as my harddrive, has 160GB, but only shows 150

 

Thank you for your reply. however this brought me to more questions.
Does this mean that it is normal to appear so?
and is my laptop using the memory module in full extent then?

if not, can i just take one of the 2gb module and put back one of 1gb module the laptop came with? would that still have simliar performance?

 

NOOOOOOOOOOOOOOOOOOO !!! Binary prefix has nothing to do with this!. FYI RAM is measured and advertised as 1024 for kilo (2^10 not 1000), only HDD manufacturers misrepresent the capacity.


Its a completely different problem related to 32 bit address space limitation and how Windows manages it’s address space. There are plenty of threads going on related to this problem. Here is a MS article with more info.
Your RAM is working normally. Unless you have a new 965 series chipset with Windows Vista/XP 64bit edition you cant access full 4GB.

 

ah.. ic
so i didnt need this much memory. thank you very much.
i guess ill return it and get one 2gb module( making it 3gb total).