Anyone undervolted a laptop? - DFWstangs Forums
 
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post #1 of 6 (permalink) Old 04-29-2009, 06:16 PM Thread Starter
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Anyone undervolted a laptop?

I'm trying to bring the temps down on my laptop and did some reading on undervolting. Basically it reduces the amount of power going to the CPU when it's using certain software. Supposedly it doesn't affect the performance of the computer at all, but it lowers temps, increases battery life, saves power, etc.

So has anyone tried this? It doesn't seem too difficult to do and it doesn't look like you can fuck up too much if something goes wrong.

Here is my source: http://forum.notebookreview.com/showthread.php?t=263039

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post #2 of 6 (permalink) Old 04-29-2009, 09:14 PM
duh...duh....duh
 
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Isn't that what the old speedstep would do and all that? For battery life, but less cpu power is less cpu power.

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post #3 of 6 (permalink) Old 04-29-2009, 11:28 PM
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I'm doing it now, on my dell.
RMclock should be all you need, its real easy to setup profiles using rmclock.

I gained about 20minutes on the highend (watching movie), and about 35mins with regular browsing/youtube/office work. This is still with speedstep enabled.
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post #4 of 6 (permalink) Old 04-30-2009, 01:50 AM
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Reducing core voltage, but maintaining the same processing output? That's BS.

In fact, take a good benchmarking program like Sandra or FreshDiagnose and run a CPU benchmark before and after. You'll see exactly what I mean.

You are essentially downloading software to do the exact same thing the Windows GUI does when you adjust your power plan. I'm at 1.125 volts (2000 Mhz core speed) on my AMD Turion64x2 on Windows Vista performance plan. However, if I select the the power plan it kicks the processor down to .800 volts (800 Mhz core speed). And as a result the battery will last about 20% longer.

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post #5 of 6 (permalink) Old 04-30-2009, 06:18 AM
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Quote:
Originally Posted by Mustangman_2000 View Post
Reducing core voltage, but maintaining the same processing output? That's BS.
ooooh, that's what is supposed to be so spiffy?

Concur.

My '03 Sold.
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post #6 of 6 (permalink) Old 04-30-2009, 11:57 PM
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Quote:
Originally Posted by Mustangman_2000 View Post
Reducing core voltage, but maintaining the same processing output? That's BS.

In fact, take a good benchmarking program like Sandra or FreshDiagnose and run a CPU benchmark before and after. You'll see exactly what I mean.

You are essentially downloading software to do the exact same thing the Windows GUI does when you adjust your power plan. I'm at 1.125 volts (2000 Mhz core speed) on my AMD Turion64x2 on Windows Vista performance plan. However, if I select the the power plan it kicks the processor down to .800 volts (800 Mhz core speed). And as a result the battery will last about 20% longer.
read up on this again.

its the same, however. lets say instead of when your running at 2ghz and at 1.125vcore you undervolt it to 1.0vcore and your at the same clocks.
regardless of windows power plan.
rmclock essentially handles this for you, but gives you options to lower vcore too.
there's more to it, that just what you posted.
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