I have Motherboard Monitor 5 installed for Windows XP with Asus P4B266 running P4 1.6A OC to 2.24. When I check my temp readings in MBM, I have sensor 1 set to ASUS 1, Sensor 2 set to ASUS 2 and sensor 3 set to ASUS 3. Now at CPU idle, sensor 1 and 2 read 28 C and sensor 3 is at 125 C. At full load under SANDRA BURN-in for 10 hours, sendor 1 is at 30, sensor 2 is at 40 and sensor 3 is still at 125. I assume that sensor 2 is my CPU temperature? Is this correct? It seems kind of low to me.