Abit BG7 w/ Intel P4 1.8g about a year old. CPU alarm has never gone off untill today, during startup(WinXP) the CPU temp alarm will sounds for about 15 secs then stop once the CPU cools. CPU temp reaches about 70C. At idle, Winbond HD v 2,7 reports 53C CPU and 31C case. As soon as I start a small program, I can see the temp rise instantly 5 or 6 degrees. I've blown the dust off everything inside, made sure holes weren't covered on case. Using stock Intel heatsink and fan. CPU heatsink is cool to the touch. Any ideas? Lance