Windows XP ntoskrnl.exe mem. corruption

[JuPPiE]

Hey all, since i got this new gaming rig i get bsod's, after the 10th bsod i downloaded WinDbg (debugging tool for memory dumps) i couldnt analyze anything, but the name of the suspicious proccess/file
i had many problems with nv4_disp.dll,Norton antyvirus2009 caused fail at Symefa.sys, had daemon tools bsods (SPTD.SYS) but most of them dont exists, i removed the program(s), now i got ntosrknl.exe as problem,it randomly bsods me,even if idle.
STOP: 0x0A
i tryed to google out all of the proccesses that bsod me, most of the codes are about bad RAM, so i opened my computer, took out the ram, and moved its position to the second rail. after 2 days bsods about bad ram attacked me again.
so you can help me, how do i identify the Memory?(what company makes these)
specs:
Intel Core 2 Duo E7400 @ 2.80Ghz
2GB RAM (one stick)
Motherboard:MSI
300 HDD
NViDiA GeForce 8400GS
im downloading the symbols for windows debugging tool now, ill try add all the dumps (about 30,maybe more) in .zip file so maybe one of u who is a specialist in comps would help me =)
thanks,

J.L

EDIT: ive added the file from debugger, after analyzing it, appears a memory corruption, as said above..
need help fixing this memory ( i alose tryed Memtest 86, it showed me 12 erros on my 6th test, so then i wanted to play some cod4 xD )