from the ss nga, i dont see the mobo brand (though im guessing its asus)
you have a AGP slot for your video card, your pc is socket 775
PC2700 is DDR333, and you only have 256MB of ram and since your video is on board then your actual ram is lower than 256MB. so yeah adding another RAM module will be of great help. however, mahirapan ka maghanap ng DDR333 these days. you can go for PC3200 (DDR400) since your mobo will support it. but, there might be a compatability issue with the existing DDR333 installed.
boss bodie salamat sa reply.
medyo naaalala ko na, asrock yata mobo ko.
ask lang, pwede ko ba samahan ng 1GB ang 256 ram ko? at sabi kasi ng napagtanungan ko sa shop knna, wala daw sila ng pc2700, pero pwede daw ang pc3880 ddr400 sa pc ko. pero eto sabi mo pwede din ang pc3200 ddr400, pero bigla mo yata binawi sa compatability issue. di ko tuloy nakuha. chaka kung AGP nga akin, ano yung socket 775?
salamat po, sana lahat ng tanong ko masagot.
-edit
added question lng, ano mairerekomenda nyo sakin na bilin kong VC? kahit 256mb lng.