CPU Undervolting via RMClock help

My main laptop is a Latitude E6500 with a P8600 and 4GB DD2 800MHz RAM.

A few weeks ago I re-applied a fresh coat of AS5 to my CPU after cleaning the fan and blowing everything out. I am happy with them temps I am getting now 38-40c idle and 7-72c under load.

I have been reading about various people's success with RMClock to undervolt the CPU. I have it installed and running, and I followed the instructions from here:

http://forum.notebookreview.com/har...arket-upgrades/235824-undervolting-guide.html

I have 2 primary questions

1. Under the CPU Info tab - the CPU core and revision state unknown
2. What voltages are good for my CPU?

In the config I do have mobile CPU selected as instructed in the guide. But I am not seeing any decrease in my temps.

EDIT: Typed in the wrong CPU model. It is fixed now.

 

1. Use Throttlestop - RMClock doesn't work too well with Penryn Core 2's.

2. You'll have to find this yourself - in Throttlestop, set maximum multiplier, disable Power Saver, and lower the voltage gradually (a step every minute or so) while running Prime95 until you get an error or your laptop freezes/BSODs. Then use a voltage 1-2 steps above that - should be good, run 8-10 tests in prime95 to see if it's stable.

 

Thanks!

I will give Throttlestop a shot. I just got it loaded and it is properly identifying my CPU, so that's a good start.

I found this guide that I think will come in handy:

http://forum.notebookreview.com/har...arket-upgrades/531329-throttlestop-guide.html

 

Yeah, it works very well.

It doesn't let you set VID for each multiplier, but that's not really necessary for Core 2 Duo - you can enable Power Saver and SLFM it will automatically switch to lowest clocks and lowest voltage when idle.

You just need to find the lowest possible voltage for the maximum multiplier as described above so your cpu is cooler and uses less power at load.