Hey guys a little bit of a problem here.I have my 2600K OC'ed to 5.0Ghz on Extreme 7 and whenever i run prime95, the CPU throttles down to 3.4Ghz the go back up to 5.0Ghz then go back down again randomly.These are my settings at bios:

50x multi
250 core current limit
Core v=1.470v fixed
level 1
DRAM v=1.515v
PCH v=1.068v
CPU PLL v=1.840v
VCCSA=auto@0.925
C1E,C3,C6,Thermal throttling,speedstep disabled
spread spectrum disabled
package c=auto
I have disabled speedstep,C1E,C3,C6 and thermal throttling.Using a Corsair H100 on an open air setup.Highest temp is 83C on core 3 and the rest are about 5-8C below that.Any other settings i should know about?I heard that these chips throttle down at a certain temp like 95c or something but it shouldn't do that on mine since i'm only at 83C.Here is a pic of it when i was testing.Note the difference between real temp and cpu-z.