yes you can use your ram if you get a better board, if your referring that your Ram is DDR3 and you motherboard supports only DDR2s?

well I have windows 7 and I have a 240Gb HDD, which is separated into 2.
one part is 40GB and is called C, that where my windows is installed and the other is 200GB and its called D. i have a problem with D, its always full and I have to delete stuff, so today i counted all the stuff on my HDD and got only 90Gb, so wheres the rest of my 110 Gb? windows shows that I have that 200Gb D drive and its full. can anyone help me to find out the problem?

U can get a cheap am+2 socket motherboard for 66 dollars,

buy a AMD 6400+ processor 190 dollars

U can buy 4 gigs of like 330mhz(or what ever they were) for 60 dollars

videocard HD 4850 170 dollars or may be even a 4870 290 dollars.

a 100 dollar 650 psu..

oh and a 320 7200rpm HDD for 120 dollars or less

amd HD4870 512mb

AMD 6400X2 3.2ghz

2gigs of ram

windows xp sp2

19inch samsung 930BF

750watt PSU

some cheap motherboard.. AM2+ socket