Z71V do I need external COoling? - Page 2

search undervolting thru the forum
go to the centrino hardware website for a quick reference on how to do it
basically.. undervolting is just lowering the voltage the CPU uses... if it can run at a lower voltage 100% stable... the ONLY effect it will have is...
- less heat produced
- less power consumption
- most likely longer life for the CPU and other components in the laptop due to less heat

if you undervolt it too much(giving the CPU at max speed lke only .8V).. it will become unstable and most likely freeze, and all you have to do is reboot and set the voltage higher...

for example.. when you overclock a PC, they set the speed higher.. and it usually becomes unstable unless you increase voltage..

well the undervolting came to life when people realized that the Pentium M processor does not need to use as much power as intel defaulty feeds it...

giving the CPU less power doesn't mean the CPU runs slower.. just cooler

why does this work? and why don't every company do it for their CPU? well... #1 intel most likely dont' want say.. a 1.6ghz dothan and maybe by end of the year.. we might see something like a 2.4ghz dothan.. they don't want the 1.6ghz dothan to have like 30 mins more battery life than the newer faster processor.. soo i guess this is why they feed all the dothans extra voltage ..

i can clock my processor at 2.4ghz and i could still undervolt it.. this tells you the potential of the pentium M... this also lets you know how much extra voltage intel is giving the P-M processors

to answer your original question, 66 is normal when not undervolted. to do this in Centrino Hardware Control, click on the "CPU Voltage" tab, and set each multiplier individually. There's a degree of variation between individual CPUs regarding how much voltage they need, but mine runs 100% stable at the following voltages (and smilepak has his voltages set lower than mine!):
6x: .748v
8x: .828v
9x: .876v
10x: .908v
11x: .956v
12x: .988v
13x: 1.036v
14x: 1.068v

using these voltages, your CPU should not get above 62 or maybe 63 for any reason for any length of time whatsoever. Average max use temp is 58-60.

i have 8 voltages i can set.. maybe try scrolling down?
or you might be using a werid version of centrino hardware control

mine is 1.86, so you would want to have your top one at 15x, instead of 14x.
give it a few minutes, and the temp will go down. Mine's 52 now, and was at 55 a minute or so ago.

and you're welcome!

you might want to up the voltage on the 15x a bit, too. say, 2 notches. other than that, you got it!

1.100

correct! undervolting is somewhat of a misnomer. it's actually more like "actual" volting as opposed to the "overvolting" that Intel does to their processors normally.

congrad.. that temp sounds good

Great stuff, undervolting my cpu has got me down to 53C-54C on 800mhz

Current hard drive temp (on for half an hour, light usage):
31 degrees Celsius.
CPU: 48-49 (and I think I hear a fan on.) (800 MHz again.)

It's a Western Digital 5400 RPM 80 GB drive. CHC is monitoring the SMART. CPU undervolted to .700/1.052 (I need to get myself motivated enough to get ALL of the multipliers down.)

I'll add that I can't measure the room's ambient temperature, but I do live in Canada and I alternate between a school that has to skimp on heating to pay their bills and my home, where I always skimp on heating to lower my bills. Climate differences may account for it.

Never mind what I said. CHC's testing program seems quite good at picking up crash points, judging by the fact that I've just crashed my computer three times in a half hour with it.