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The original 2 sticks of 256 Mb of RAM gives you a total of 512
Mb of RAM. Two 512 Mb of RAM gives you a total of 1 Gb of RAM.
With two sticks of 512 Mb of RAM are you sure you got a total of 192 Mb of RAM, this is a lot less than the original RAM total of 512 Mb?
Should this be 1920 Mb of RAM?
If this 192 Mb is correct then the RAM modules are either not compatible with the laptop or if the RAM modules are not from the same manufacturer then they may not work together.
Most laptops have video cards that use part of the main RAM for video RAM, that is why the available RAM is less than the installed RAM modules. The amount of RAM the video card grabs depends upon the type of video card and in some cases the amount of video RAM can controlled in the BIOS setting.
Hi, Memory Upgrade for Sony VAIO
PCG-K35 Laptop, the Sony VAIO PCG-K35 Laptop takes the PC2100 DDR SDRAM
SODIMMs Memory Type, and comes installed with 512 MB = 256 MB
(removable) + 256 MB (removable) of Memory. You can upgrade your
Sony VAIO PCG-K35 Laptop to up to a maximum of 1.0 GB Memory, the
system has 2 sockets to install Memory, already with 512 MB = 256 MB
(removable) + 256 MB (removable) standard Memory installed. For best
Laptop performance use the maximum amount of allowed Memory per slot
for your Laptop.
What OS are you running? 768 should be enough to run XP and keep you from getting that error message. On laptops their are normally just 2 slots for ram, so you would need to replace the 256 with the 512, which would bring you up to a gig of ram. Do you know if your computer has any spyware/adware on it? Sometimes malware can take up all your memory and generate just such an error. Do you know how many processes are running when you first login? Thank you.
It sounds like something isnt working right, what operating system are you using, Vista? I would take out the original 512 and see what it says after, often ram isnt compatible if it is too different in size and speeds. Also, if your motherboard supports dual channel ram and you have the extra 512 chip it wont run in dual channel mode, you would run better with just the 2 chips then the added 512 chip.