So today I went ahead and upgraded my system to 2gb of ram (4x512mb), but I'm having some trouble. When I boot my bios automatically detects the settings at DDR333, 2.5-3-3-7, 2t. The ram I bought however is rated for DDR400(of course) 3-3-3-8, 1t. Not only that, but when I go into the bios and manually change the settings to what they should be, it refuses to post and won't boot at all. I've tried everything, going back to completely stock clock speeds etc but I can't get it to post if I put it on the correct settings. Please help =( i'd also like to mention it works fine with only 2 sticks in.