Temperature Problem on Stock Speed

[thingieing]

i have a ASUS P5B board w/ E6420 running at stock speed 2.13GHz and Arctic Freeze Pro as HSF, i was getting 42-47C idle before i applied Arctic Silver 5 compound, now i'm getting 90C during idle, what's the problem here (is it the MB or the Thermal Paste)?

 

[r_manic]

Have you tried cutting down on the amount of thermal paste you've applied? Too much paste will reduce heat conductivity.

 

[mike99]

Check HS is fitted tightly at all 4 point, sounds like one has come loose.

Mike.

 

[hundredislandsboy]

After you reset reseat the cooler tightly, check your temps from the BIOS before Windows loads up. If it's crazy high then you know your cooler is not seated properly.