i just checked my mainboard temperature is too high.How do i reduce it i just cleaned my all the fans i even opened the casing so that temperature decreases at the moment it is 74°C but it goes till 86°C. http://img36.imageshack.us/img36/51...

All the other temperatures are great! signature

I suggest checking the temperature in bios rather than using a third party prog. The motherboard temp could not be that high while the CPU is only at 35 degC. I suspect the program is incorrectly reporting your CPU temp as Motherboard. That said it is still very high and you may need to look at cleaning more than just the fans. The CPU heatsink could be clogged up with accumulated crud. You may have a poor contact between CPU and heatsink. Remove the heatsink. Clean off old dried up thermal pad/compound. Renew thermal compound and reinstall the heatsink after cleaning out the cooling fins. Goin' Fishin' (Some day)

I checked it at bios it was 79 at the moment and i did clean the heat sink and the cooling fan.So what do u suggest should i buy new cpu fan or it could be something else like PSU or anything else.This is a new motherboard i just bought it 2 months ago Gigabyte GA-P43-ES3G,PSU is 600W

You realize the mainboard temp is basically the the same thing as the internal case temp, right? How would cleaning or replacing the heatsink & cooling fan affect that? I can all but guarantee you that your board is NOT at 79C. If it was, how could your CPU & HDD be in the 30's? 79C = 175F. If your system was truly that hot, it would be like an oven. The sides of the case would be very warm to the touch & when you removed the side panel, you'd get hit in the face with a blast of hot air. All you have is a temp reporting problem. You're trying to fix a hardware problem that doesn't exist. Try updating your BIOS.

well i just now checked the CPU temperature is 75 and i just used a software called speed fan it shows my GPU temperature is 58 at the moment.It is really unstable if i use some application like photoshop it just shuts down without any warning. speed fan http://img19.imageshack.us/img19/18... http://img62.imageshack.us/img62/74... bios(pc health) http://img84.imageshack.us/img84/62...

system temperature is absolutely fine and even the HDD and motherboard temperature is fine only the Cpu temperature is not fine.