Xeon Thermal Throttling

[ecalosyt]

I recently bought an X5670 Xeon CPU and slapped a stock cooler on it. I got the Intel DX58OG mobo so that i can maybe overclock it in the future, but as of right now, I cant even run it at stock. I used the Intel Extreme Tuning Utility and the stress test in it showed that my cpu thermal throttled when it reached 90C(when it was 60C idle). So I put some new thermal paste and found that it was now at 45C idle, but when I ran the stress test again it reached around 65C but thermal throttled??!. I went into my bios and set the voltage to like 1.5 and lowered my multiplier to even less than the stock and it is still thermal throttling at ~65-70C whereas before it would reach 90C without throttling to 1.8ghz. Someone help I am so confused, could it possibly be the cooler or some setting in BIOS, any help would be appreciated, thanks.

 

[sirstinky]

The Intel stock cooler was not meant for overclocking or tuning and neither was the Xeon. Yes, you can overclock it, but only so far. Your processor is generating too much heat and that cooler can't draw it out fast enough to prevent the throttling. It just doesn't have enough surface area and mass to remove the thermal energy from that CPU, which is I believe a 95W TDP. Get yourself an aftermarket cooler like a Cooler Master 212 or something like a Zalman CNPS. Make sure it will take LGA 1366 though.