Hello,
I recently got an i7-950 based PC from my uncle. I turned it on and it was idling around 70C, which concerned me, and when running games or anything more intense than a download from steam it heats up to 98C. It reaches 100C here and there, especially in Prime95. Thankfully cinebench R15 and R20 Don’t throttle it. I replaced the thermal paste with arctic silver 5 and made sure the cooler was making proper contact. I am using the stock cooler and have and extra fan blowing towards my exhaust fan and they are all running at 100%. No change with the max temps but it idles around 60C and occasionally I see sub 55C temps.