Undervolting has the following benefits
-longer lifespan
-cooler running
-power savings (and electricity bill savings at that )

Only downside is that it might not be stable, but how to check for that is already mentioned here. You can stabilise a undervolted proc by
-underclocking
-increasing the voltage slightly
-cooling it further (not very effective, needs to be subzero for any significant effect)

stock Vcore for my proc is 1.35V. last time with stock cooler, i undervolt to 1.185V, oc to 3.01GHz, stable.

now using TT Big Typ, can oc to3.15GHz, but then need to increase Vcore to 1.225V

still lower than the stock Vcore..

orthos all stable saja, 24/7 running no problem...

if both cpu remain at stock vcore but one is OC (the other one stays at stock clock), will both still have the same temperature and power consumption? thks~

Sorry for my noob question, can I undervolt the proc like e2140 and in the same time overclock the proc?

Since the e21xx series got is a good oc proc, undervolt it and overclock a bit of speed, is it possible??

Possible. The limit of overclocking will then be determined by your Vcore.

Another question,will it be cooler and save more powers?

yes, undervolt & oc gradually and test the stability with orthos

i suppose that is the purpose of undervolt

UNCLOCKING
- confirmed it will reduce LOTS of heat from proc

jz tested using stock HSF on my e6400@2.13Ghz stock spd but undervolt to 0.99v

on TAT,
stock voltage ~68C(idle), load 100% >80C
at 0.99v ~53C(idle), load 100% <65C

close case, in A/C room....dam gd im gonna cont undervolt 24/7 from now on unless i OC

running Opty144 @ 1.30V (stock 1.4V) and push a lil' bit speed (aound 35%) .
stable , lower heat produce .

idle at 68C... very hot temp dude....

Yeah, there's something wrong with your rig. It shouldn't be that hot even in a closed case system. Are you sure the CPU HSF is seated properly and the fan is running?

◎toda6866, RokXIII & kmarc are right, the temp shud not be that "furious" even at stock vcore, hsf & clock, how do u get the readings? is yours es? what about bios readings?

brisbane 4000+ @1Ghz 0.784V, @2.1Ghz (stock) 1.008V. using crystalcpuid, readings by cpuz, ccpuid settings are actually at 0.800V and 1.025V. @1Ghz can go as low as 0.752, but no options on ccpuid. 1 don't like rmclock

turion x2 tl-52 taylor. @800Mhz can go as low as 0.732 using rmclock. but using ccpuid. i tried changing the settings in the ini files and get 0.775V @1.6Ghz 0.85V.

all stable with orthoz.

unfortunately, 2 notebooks and 3 desktop, i only bought an AMD system not that i'm a fan, its just cheaper.

Opty 146
1.16G @ 0.85v [idle]
2.32G @ 1.125v [middle]
2.9G @ 1.4v [load]

using RMClock.

Running at 1.25v ( stock 1.35 ), all good

hi guys, just some update on my undervolted e6600, pairing it with g92 8800gts, during playing cm:dirt, the game hang occasionally, so i increase a bit from 1.020V to 1.075V (stock is 1.325V), the hang issue solved

That is pretty high temp.I oc an E4500 to 3.05ghz(305x10),1.44v i think and load 66C also very scary liao but pass OCCT

should be no problem, my friend undervolt his sempron to 1.1v

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Added on December 18, 2007, 8:41 pmyes.. it is possible, oc a bit only does not effect too much things

This post has been edited by MyCJS01: Dec 18 2007, 08:41 PM

i had try once oc my opty170 from stock 1.35V to 1.2V and oc to 250mhx , 2.5Ghz 1000htt and runnning occt for few hours no problem.
my ram was setting lower to 333mhz rather then ddr400

For those who doens know much about OC stuff....there is a way of Unclocking. wat i did was i enables the Speedstep function in the bios (using Asus P5n-e-sli) and then once i'm in windows, go to the power option in control panel...just choose portable/laptop as ur power scheme...this will lower down everything.

it saves energy, reduce heat productivity and its a instant setting. u can change it back to the default speed at anytime as long as u are in the window

but the downside is that the speed is fixed. E.G i'm using e6420. at Home/office desk setting..it runs at 2.13ghz the default speed, when i change it to protable/laptop power scheme the speed is 1.60ghz.... normally wat i did was i change it to protable/laptop when i'm downloading and then i go to slep

i'm using watercooling for my system.

home/office 2.13ghz 29c 1.300v (LYN & web surfing)
Protable/laptop 1.60ghz 26c 1.138v (LYN & web surfing)

the tempreture will be 2c-3c lower when i'm not using the pc.

This post has been edited by melvyn: Jan 5 2009, 02:48 AM