Quote: Originally Posted by Cubicsilver
Exactly! Prime 95 on all cores.
The truth is most laptop overclocks are not going to generate a significant amount of extra heat.
Infact it's possible to undervolt a laptop processor and overclock it with the same or less heat output than stock!!
Just like desktop processors, some laptop processors are going to be better overclock canidates than others.
This is a forumla for calculating overclock watt output: Po = Ps * (Fo/Fs) * (Uo2/Us2)
Ps is the power usage of the non-overclocked CPU
Po is the power usage of the overclocked CPU
Fs is the clock speed of the non-overclocked CPU
Fo is the clock speed of the overclocked CPU
Us is the default voltage of the non-overclocked CPU
Uo is the voltage at which the overclocked CPU runs
*taken from http://http://www.heatsink-guide.com/calcpower.htm
An AMD 64 L110 has a maximum wattage of 13
and a core voltage .9
volts @ 1200mhz
I have seen this processor undervolted as low as .6
volts and the common overclock is between 1400
Say this processor was overclocked to 1400mhz
and undervolted to .8
then the formula would be: Po = 13 W * (1.4/1.2) * (0.82/0.92) = 11.98 W This is simple overclock that anyone with this processor should be able to do. Most go higher with less volts. If your model can take a must faster processor than you currently have in it and you OC, than more than likely you are not even going to make a dent in the designed cooling. For example: I have an acer aspire 5517 that came with an AMD L310 stock (13W .9v core 1200mhz) and I swapped it out with a TL-56 (1.025 core 31W 1800mhz) (which I OC on occasion to 2250). A common overclock for the L310 is around 1600mhz. (limited by clock generator)
Po = 13 W * (1.6/1.2) * (0.92/0.92) = 17.3 W !! If I can use a TL-56 with a TDP of 31W that means even with overclocking I have only used half of the designed thermal capacity of the laptops cooling!!!
When you do the math, heat really isn't that much of an issue.
When you give advice here, the main problem is you don't know who you are talking to....The OP could barely know where the power button is, or they could have designed the logic gates for the i7...There is truly no way of knowing!
That said, anytime a new member comes on here and says "I want to overclock my laptop", the stock answer will be you can't....and you can type your arguments till your fingers fall off and that won't change....
The reason is real simple, anything you post here lives forever....anybody can read it, and apply or misapply it in many ways
. The worst nightmare that I'll say anybody has here is to give advice, then have the OP say, said advice ruined his computer....and despite anything you say, overclocking is a good way to add to the paperweight collection, but the gains can be worth more than the risks....in the case of desktops.....
Laptops are nonstandard...have poor cooling systems at best, and are run on surfaces that make the cooling problems worse. The bios is often locked making under volting/ overclocking all but impossible. Any attempts to overclock will void the warranty.
The OP's system could be pristine or it could be spitting fuzz balls out the fan....if it even runs
. No way, shape, form, or fashion will I tell anything about overclocking laptops on the open forum, and if/when you have built up some reputation here you won't either