New
#1
4G memory installed 2G usable 64bit system
Hi, everyone,
I have upgraded my system from 2G to 4G(2 X 2G). I am using the windows 7 64 bit ultimate version. The laptop is hp dv6500z.
The problem is: from the system information, it say "4G installed (2G usable)".
Can any one tell me how to fix this?
Originally, I use 2X1G pc2-5300 memory, and I am using 2*2G pc2-6400 memory. But it is said to support the pc2-6400 memory from the RAM Memory Upgrade: Dell, Mac, Apple, HP, Compaq. USB drives, flash cards, SSD at Crucial.com. (Otherwise, none of the sticks should be recognized.)
Quoted as:
""Each memory slot can hold DDR2 PC2-6400,DDR2 PC2-5300 with a maximum of 2GB per slot"
The status of my laptop is as follows:
Chipset: nVidia nForce 630M
Drive Form Factor: 2.5"
Drive Interface: SATA
Maximum Memory: 4096MB
Slots: 2 (2 banks of 1)
Standard Memory: 1024 or 2048MB removable
USB Support: 2.x Compliant
I put 2 stick into the slots. , why?