Log in Register. What's new. New posts. Log in. Install the app. Please check out our forum guidelines for info related to our community. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. I checked every inch of the bios for HPET but it's definitely not there.
Others on OC. My gigabyte X58 board that I purchased during the release of nehalem has the setting. PliotronX said:. JoeRambo Golden Member. Jun 13, 1, 1, Whether HPET gives any benefits or disadvantages is really dependent on the kind of hardware you have. JoeRambo said:. And disabling HPET is very stupid idea in general. Since Windows 7, the operating system runs tests on the underlying hardware to see which hardware is best used for timekeeping.
This is the architectural behavior moving forward. TSC reads are much more efficient and do not incur the overhead associated with a ring transition or access to a platform resource. HPET is programmable timer with plenty of functions. For example on modern operating systems with so called tickless mode, OS will look at it's timer, job etc queues and will set HPET to fire exactly when it is needed for example 66ms later, when some of your app demands wakeup in some system call and not periodically every 10 or 15 ms needlessly burning CPU cycles on doing nothing.
Invariant TSC is cool feature, engineering marvel from Intel in its day. But having same "clock" tick value across all CPU cores in the system is good for time keeping and measurement and sadly can't magically bring back CPU from sleep. Interesting, didn't know about TSC and the Core line.
I'll play with it when I find some time VirtualLarry No Lifer. Aug 25, 52, 7, Since disabling HPET, I haven't noticed anything out of the ordinary other than faster loading, greater responsiveness and smoother gaming. VirtualLarry said:. Surely, it has benefits, or it wouldn't have been created. Note "wall clock". Invariant TSC is great for keeping track of time, but it's not an event timer source, capable of firing off events interrupts at certain times.
HPET is. Details required :. Cancel Submit. Hi, Thank you for posting your query in Microsoft Community. Let me help you. Are you referring to High precision Event Timer? What is the make and model of your computer?
How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. In reply to A. User's post on February 28, Hi Aswin, Apologies I should have provided more detail. In reply to TylerDominick's post on July 20, And I am still waiting patiently after 5 months for someone knowledgeable at Microsoft to enlighten us. In reply to raufzero's post on March 6, As part of our standard lifecycle support policies, Microsoft made a commitment to provide 10 years of product support for Windows 7 when it was released on October 22, If I buy a new PC with Windows 10, how long will it be supported?
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