Hey, i have got a pretty descent pc at the moment but i am looking at upgrading my memory. i have 2 x 256 kingston dimm's running dual channel and i was wondering if i can run 4 x 256, still running dual channel? i did try with some cheaper ram (hynix) that i had lying around but it wouldnt work, windows didnt like it very much (sometimes the pc wouldnt even boot up). i do think that was because of the cheaper ram running with my kingston ram but id like to know what you think before i order more kingston! thanx in advance 4 ur time.