Is your CPU staying clocked at 4.2Ghz the whole time when playing RE4?
You may need to OC just a bit more to get full speed.
Also: Speedstep is perfectly safe being off. It's better having it off (IMO) because with it on you will frequently get stutters in just about everything in windows when the CPU is changing clocks. And it can be quite annoying. 40c Idle at 4.2Ghz is good idle temps.
I've got a first gen i7 950(Readower and heat whore 125wTDP. These things get hot) and I run it at 4 and 4.2Ghz and my idle temps are usually between 43 and 47c on the cores.(CPU itself is only like 30 something) and my CPU is still running strong.(Been running this OC with speedstep turned off for 2 years now)
You may need to OC just a bit more to get full speed.
Also: Speedstep is perfectly safe being off. It's better having it off (IMO) because with it on you will frequently get stutters in just about everything in windows when the CPU is changing clocks. And it can be quite annoying. 40c Idle at 4.2Ghz is good idle temps.
I've got a first gen i7 950(Readower and heat whore 125wTDP. These things get hot) and I run it at 4 and 4.2Ghz and my idle temps are usually between 43 and 47c on the cores.(CPU itself is only like 30 something) and my CPU is still running strong.(Been running this OC with speedstep turned off for 2 years now)