hmm, which Motherbvoard you have? as if you are using Asus / Gigabyte or some other reputable vendor, then it will be easier for you to flash BIOS over internet in WIndow Mode, else its slightly complex and dangerous to update BIOS without having any prior knowledge. better is to see some computer vendor in nearby shop who can help you out.
if you can return the DIMMS for replacement to Samsung, then it is recommended.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"