Will a high density ram work on my emachine T2682

I am trying to upgrade my memory on my computer but i dont want to buy something that will end up not working so…. those of you that do know all these stuff, can you guys help me out and tell me if a high density RAM will work on my computer? Thanks
Here is my computer specs………………..

Memory: Mem, DDR-RAM 256MB (Max. 2GB) 1848
ODD2: 48X CDRW (48X24X48) 2434
ODD1: 16X DVD 100127
HDD: HDD, 80GB 5400rpm 100125
MB: MB,IMPERIAL-GV (845GV) MBEM100614IM
FDD Model: FDD, SFD-321B/LTGNQ FDEM2097BLCK
Chassis: Chassis, Nexgen 2 main chassis frame
Power Supply: PS, 250 watt 1670
CPU: CPU,CELERON 2.6G 478P 128K F400
LAN: LAN, 10/100 integrated
Modem: Modem,Conexant, fax/modem v.92 56K
CPU Fan Type: Fan,H/S Cel-P4 2.6 462P 100611