Today I spent some hours to test the max stable fsb with E8400. And this time I used core temp to show the temps Dont know the ambient temperature but it should be something between 19°-20°C

Max FSB running Prime95 is 560MHz



Can run Super Pi1M with 565MHz FSB. 32M stopps after 6 loops.



And yes, these Chips will run very cold. Never seen more than 66°C on Coretemp, even if set 1.55V in Bios.