[SOLVED] X5650 Hyperthreading - Does it cause errors in Windows if turned off?

[ilievxman99]

I have a X5650 Xeon running at 45 degrees Celsius idle. I want to reduce the temperature. I changed thermal paste but I want to also configure it so its cooler. I've heard HT can increase temperatures by 8-10 degrees on modern CPUs but I am willing to try disabling it on mine to see how much cooler it will go. About 2 years ago I went into my Dell Precision T3500 bios and turned on HT. Since the CPU is a 6 core one I doubt I will benefit from HT based on my work load. My question is - if I turn it off from the BIOS will I get any errors or problems when I boot into Windows? I am running Windows 7 Professional 64 bit. Thanks in advance.

 

[kanewolf]

I have a X5650 Xeon running at 45 degrees Celsius idle. I want to reduce the temperature. I changed thermal paste but I want to also configure it so its cooler. I've heard HT can increase temperatures by 8-10 degrees on modern CPUs but I am willing to try disabling it on mine to see how much cooler it will go. About 2 years ago I went into my Dell Precision T3500 bios and turned on HT. Since the CPU is a 6 core one I doubt I will benefit from HT based on my work load. My question is - if I turn it off from the BIOS will I get any errors or problems when I boot into Windows? I am running Windows 7 Professional 64 bit. Thanks in advance.

Hyperthreading on/off won't change idle temps significantly. It could raise loaded temps by better utilizing all parts of the CPU.
You should not get any errors by disabling hyperthreading in the BIOS.

 

[SamirD]

And if you really want to cool down the processor, go into the bios and set the fans to the highest setting or remove the pwm pin from the fans in the system. It will make more noise, but will absolutely run cooler.

 

[ilievxman99]

Hyperthreading on/off won't change idle temps significantly. It could raise loaded temps by better utilizing all parts of the CPU.
You should not get any errors by disabling hyperthreading in the BIOS.

I will try it and will keep the forum updated but thanks so much.

 

[Defenestrator IX]

I have a X5650 Xeon running at 45 degrees Celsius idle. I want to reduce the temperature. I changed thermal paste but I want to also configure it so its cooler. I've heard HT can increase temperatures by 8-10 degrees on modern CPUs but I am willing to try disabling it on mine to see how much cooler it will go. About 2 years ago I went into my Dell Precision T3500 bios and turned on HT. Since the CPU is a 6 core one I doubt I will benefit from HT based on my work load. My question is - if I turn it off from the BIOS will I get any errors or problems when I boot into Windows? I am running Windows 7 Professional 64 bit. Thanks in advance.

Disabling hyperthreading will mostly reduce performance. It may reduce temps a little, but halving your threads won't half your temps.

 

[ilievxman99]

Disabling hyperthreading will mostly reduce performance. It may reduce temps a little, but halving your threads won't half your temps.

But I have 6 cores and I only want to use Autodesk Inventor which requires 1 fast core and games which are also not core count fussy so I doubt I will lose performance. I will let you know.