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Underclocking Pentium 4 CPU


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#1
cmtr2000

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I was stupid and got a notebook with a Pentium 4 3.2 GHz. I love its capabilites, but it eats up my battery hardcore. Would it do me any good/is it possible to underclock my processor to centrino-like speeds when i need my battery to last-such as when i am doing work on a flight.

Futhermore, i cant for the life of me figure out what kind of motherboard i have--assistance on that please.
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#2
OneCool

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Go to your control panel and click on "Power Options"

Maybe set it to "MAX BATTERY"

Dont know if you can underclock it or not.

What model lapper is it?
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#3
cmtr2000

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Do you see an option on startup to enter setup?  It should be something along the lines of pressing F1 or Delete key.  This will get you into the BIOS, from there you need to find the FSB setting, and then just lower it, this is the easiest way to do it, you will also in effect be lowering your memory speeds and video speeds as well, but it is probably no big deal on a laptop.

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Does anyone know what value to set the FSB to? I want a setting that keeps my battery life high and not lowering my video and memory speeds.

I have a HP Pavilion zx5280us. What kind of motherboard do i have-it doesnt specifically say in Device Manager-so someone help me out. I need to know the brand and model so i can get a motherboard/cpu monitor.

Edited by cmtr2000, 05 June 2005 - 01:14 PM.

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#4
hudihoo

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go to majorgeeks.com
download speedswitch XP you can change settings of processor and ram to get max battery time. i slowed my celeron 2.8ghz to about 1.3 ghz and my ram only used one of the 2 sticks. This more then doubled my battery life. I will take no responsibility to any damage you do as you have to be technically advanced to be able to this. You really need to know compter stuff to do this.
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