Solved Pros and cons of turning one of the cores OFF

June 5, 2011 at 08:35:28
Specs: Windows 7, intel i5 580/6gb ram
I have a Laptop with intel i5 580 processor. Its a dual core laptop with hyper threading, which means it works like 4 cores and has turbo boost as you may know. My battery lasts for only about 2-3 hours. I want to make it last longer. So I was thinking of turning one of the cores off. I mean it would still be powerfull in that it would still work like dual core with a base speed of 2.66 ghz, right?. So I think it would still be powerfull enough for browsing and watching videos and typing, right!!. I don't know a lot about PCs. I just wanna make sure I won't negatively affect my laptop.
So my question is, IS there any cons that I need to be concerned about other than a slight decrease in performance?

Thankyou 4 ur help =)

Hp dv7 laptop
Intel i5 580 2.66ghz turbo boost to 3.33
500GB 7200rpm hard drive
6gb ram

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June 5, 2011 at 08:58:46
If processor throttling is enabled, you may not see that much of a change. A spare battery in the laptop case might be a better solution.

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June 5, 2011 at 14:08:58
I doubt that a laptop BIOS would give you the option to disable a core--my older C2D based laptop doesn't give me that option. Some desktop BIOSes don't even let you disable CPU cores. You may be able to disable Turbo Boost and/or set a maximum CPU clock speed in the BIOS. You can configure Windows to only use one CPU core, but that method doesn't actually disable the core.
(Start-->msconfig-->Boot-->Advanced Options-->Number of Processors)

Keep in mind that the i-series processors consume very little power when idle.

Super PIII | Unlocked ES Tualatin @ 1.8GHz (150x12, 1.65v, 512K L2)
2GB PC2700 | 500GB | Radeon x1950Pro | Apollo Pro 266T | Win 7 Pro

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June 5, 2011 at 18:07:32
✔ Best Answer
You just may improve your battery life just by eliminating processes from starting with Windows. Processes that are running your CPU at slightly above idle speeds that you really do not need. Run msconfig and go to the start tab and uncheck all except MS and your antivirus program (you can later recheck anything you find you need), OK and restart the machine. All of the programs you need are still available but you do not need many of them waiting on the slight possibility that you may need them in an instant, you just launch them if/when you need them and shut them down after. This should save you considerable battery life.
Additionally, if you are using Norton or McAfee, know that they are notorious for wasting system resources and therefore probably also use battery power inefficiently as well. You may want to Google for information on the energy efficiency of AV programs, but Microsoft Security Essentials and Avast are known to work more efficiently and probably use less battery power.

You have to be a little bit crazy to keep you from going insane.

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