Overclocking ! *Laptop/Notebook*

[Turk4n]

Hey, C.C !

Yesterday, I was over my friends house and she held a "gaming/movie/fun" party. Anyways, I was questioned how safe it is to overclock a laptop/notebook cpu. She wanted to overclock a Thinkpad T60 Intel GM945 chipset. I couldn't answer her question, because I was like what? Overclocking a laptop? It runs normally at 55 celsius !
What should I tell her next time and future questions regarding overclocking laptops :S?

[Jordan]

Never heard of it being done on a laptop except when they come stock with an overclocking button.

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[Turk4n]

Okay, well I haven't google'd anything since wanting to see if anyone here is or was familiar with it.

[TcM]

Does she plan to overclock it from the BIOS?

Well.. my laptop runs normally at 60+degrees... and it came stock with an over clock button... so I don't think that makes any difference.

[Turk4n]

Does she plan to overclock it from the BIOS?

Well.. my laptop runs normally at 60+degrees... and it came stock with an over clock button... so I don't think that makes any difference.

Okay...

[Chinmoy]

most manufacturers have any overclockng options disabled in bios and you need softwares. Nvidia provides softwares-ntune to overclock GPU. For CPU i dont trust any software as they render your system unstable. Better try flashing the bios. And a cooling pad is a must if you overclock the notebook. They need a lot of maintainance. Be careful. If you need detailed instructions, i am ready to help.

[Turk4n]

most manufacturers have any overclockng options disabled in bios and you need softwares. Nvidia provides softwares-ntune to overclock GPU. For CPU i dont trust any software as they render your system unstable. Better try flashing the bios. And a cooling pad is a must if you overclock the notebook. They need a lot of maintainance. Be careful. If you need detailed instructions, i am ready to help.

Cool, but I think now that overclocking would be risky on her laptop :X. Her CPU temp is around 53 Celsius idle and 69 Celsius at full work...

[TkTech]

...
...
A. The intel GMA series are very well documented. It is both possible to overclock and underclock the base frequency.
B. nVidia provides Windows, Mac, and Linux tools to over/under-clock their GPU's as well as control voltage lanes and some model-specific features like the fan voltage.
C. You can easily overclock a laptop but heating is an issue. Mine runs a script that underclocks to 800Mhz if a full screen application isn't running and the temperature passes 80˚C. Overclocking your laptop can easily reach 100˚C plus (which is still functional, FYI)
D. Mine idles at around 65˚C. 69˚C is nothing.

[Turk4n]

...
...
A. The intel GMA series are very well documented. It is both possible to overclock and underclock the base frequency.
B. nVidia provides Windows, Mac, and Linux tools to over/under-clock their GPU's as well as control voltage lanes and some model-specific features like the fan voltage.
C. You can easily overclock a laptop but heating is an issue. Mine runs a script that underclocks to 800Mhz if a full screen application isn't running and the temperature passes 80˚C. Overclocking your laptop can easily reach 100˚C plus (which is still functional, FYI)
D. Mine idles at around 65˚C. 69˚C is nothing.

OUCH, 100˚C in core temp , I wouldn't want a portable oven

[Chinmoy]

really 100 degrees! it is too much and will definitely cause degradation of processor life. Even after heavy overclocking you should never let the temp. go over 72 degrees. Dont you think you are spoiling your motherboard TkTech! Also, there appears there is some problem. I have an acer aspire 4520, and my idle temperature is around 50 degrees and full GPU and CPU throttle tests sent it to 83 degrees. 100 degrees is not impossible but highly improbable.
And overclocking or underclocking is meant to be done to match the ram frequency.

I have a 1.8 GHz and 667 MHz DDR2. So divide 667 by 2, you get 333. Now find the nearest multiple of 333 close to 1800. That is 1665, and 1998. So I have two options for optimum performance. Underclocking to 1600 or overclocking to 2000 MHz. Both will give better performance overall.
Also, if you want to overclock more, increase the speed by 200MHz, and check for any unstable behaviour. Good luck, and once again, her temperatures are quite normal. Can you post a detailed specification sheet of her hardware?