Hi. I keep getting BSODs at random time with various stop messages. I've tried everything in the "Troubleshooting Sudden Reboots/crashes" and "Before posting your minidumps, please read this" posts. I've found some errors on my RAMs so I got new ones from store. My system is brand new and this is happening since I built it. I've got newst drivers and BIOS. Specs: MB: Asus P5Q-E CPU: Intel Quad Core Q9400 2.66GHz GPU: MSI NX8800GT ZILENT 512MB PSU: Fortron 500W Blue storm II RAM: Corsair 4096MB XMS2-8500 2x240 DIMM, unbuffered, 5-5-5-15, E.P.P. Technology, paired Cooler: Asus Silent Square EVO DVD-RW/CD-RW Asus HDD: Samsung 400GB Audio: External USB - M-Audio MobilePre OS: Win XP SP3 (also tried Vista 64b) In event viewer I got only TCP/IP warning messages (TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts. ). I tried some games (Spore, Flatout 2, FarCry2). All of em were crashing and freezing :/ Please somebody help me. I'm desperate, it's new machine and it's crashing constantly I'm attaching few minidump files.