I have a pentium 4 3 Ghz system with intel 915 chipset for 2 and a half years without nay problems. I recentlly installed a 300Gb seagate disk and 512 mb kingston DDR400 RAM to and changed my monitor 17" Wide Acer monitor. I formatted the new hard disk and after successful installation of windows Xp pro edtion i found that my Pc keeps on restarting over and over again sometimes only.
I will be able to log in and and see the desktop screen and all the icons and it will keep restarting. I have formatted the hard and reinstalles but still same. i have a leadtek tuner card, audigy4 sound card and a geforce6500 256mb graphics card all was working fine for the past one year. now my total memory is 1 Gb knston DDR400. Norton antivirus 2007 detects no problems.