Ram upgrade can i put 4 g of ram on my zd8000? i also have a sony vaio vgn fs840w, is it posible & practical for me to upgrade my processor to a newer system

You can find firmware and registry updates for your DVD drive from Sony at the following:

http://esupport.sony.com/US/perl/swu-list.pl?mdl=VGNFS840W

The Computer has 1GB (512MBx2) PC2-4200, DDR2, 533MHz RAM Modules and the RAM can be upgraded to a maximum of 2 GB.

The complete installation instructions are available in the User Guide page # 90 to 94.

To download the User Guide, click here.
Hope this helps..

got to www.crucial.com and either run their system scan tool or input your model. Our initial lookup shows the max for your system at 2048MB (2GB)

call sony europe first and verify if you can still upgrade the memory/RAM..

make sure that you use the same type of RAM before you upgrade it..

goodluckü

Take a look at the T2700 Intel(R) 2.33Ghz or the Intel(R) T7600 2.33Ghz chipset

You should look here
There are many guides and tips for just the type of job you want to do

Hi there,
from the white page I found:

"The 17-inch widescreen Sony Vaio VGN-AR230G, the first entertainment Sony’s AR notebook with Core 2 Duo Mobile (Merom) processor, is now available at SonyStyle.com. The Vaio VGN-AR230G comes with a T5600 (1.83GHz, 2MB L2 cache) CPU, an 1GB DDR2 SDRAM (expandable to maximal 2GB), an 200GB 4200rpm SATA hard drive and a dual layer DVD burner ."

There u are, only 2GB.

/Teis

Haha!

I had such dreams too with one of my old Vaio. I really wanted to upgrade the processor and graphic chipset. Turns out that the latter is impossible (it was soldered to the motherboard - it wasn't a graphics card, just an all-in-one chip), as for the processor I was able to take it out but I ran into several problems:
1) vaio added electronic components to the motherboard that made higher CPU speeds unachievable even if the motherboard's cipset (VIA) was able to do that.
2) the cpu maker (AMD in my case) kept telling me that their mobile cpu were custom designed for that specific laptop, so new cpu would be incompatible. Also mobile CPUs are, apparently, only sold to laptop makers, unlike OEMs... (eBay but at ur own risk!).
3) When buying a new CPU, u need to check factors such as the number of pins (mobile cpu are much smaller), voltage, current, wattage and heat dissipation (very important, ur current heat sink was designed for ur current cpu).

But maybe things have changed now. In my case, I could only upgrade the RAM and the hard-drive to larger and faster versions, and the difference was quite significant difference. Faster booting and better internet experience.