Hi supershanks,
sorry mate it was a fluke !
Just ran the tests again, not using the old ASROCK, but comparing the two Gigabyte boards:
Both using E6550 cpu, Prime95 and Real Temp 2.70, after 30 minutes:
GA-EP45UD3LR : 53 decG, 53 degC
GA-EP35-DS3R : 53 decG, 53 degC
Yes, that's right - both exactly the same temperature.
Regards,
Neil