How do I manually control fan speed?

[K72-a]

I want to manually set the fan to run at full speed before I start a game.

This is because the fan kicks in too late to cool the cpu and gpu, and it doesn't go all the way up to 100% speed. Instead, when the cpu or gpu begin to heat up, the fan only comes up to about 50%, and then the system starts to lower performance.

The fan only ran at 100% speed when I was updating the BIOS, thats how I came to know it can run a lot faster than it usually does.

The vents are not blocked, and everything is very clean, ie no dust anywhere.

[johnwinchester]

PeerOne is correct.

However, there are a couple of things you can try- these won't let you control the fan manually, but they might solve the game lag problem:

1>Check CPU cooling policy is set to "Active", not "Passive".

If (1) doesn't solve your problem, update the BIOS.

A newer BIOS might control the fan speeds differently.

[K72-a]

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@PeerOne wrote:

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You don't this is controlled by the board and how it monitors temp that determines fan speed. And only in the high price True Gaming laptop does it give you such control not your everyday laptop.

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I know that, but I want to know why the fan never goes above 50% making the performance sluggish. It should go up to 100% when  I start a power hungry program (for example IntelBurn Test). Like I said I know the fan can run twice as fast because it does run at 100% when I am updating BIOS.

[K72-a]

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@johnwinchester wrote:

PeerOne is correct.

However, there are a couple of things you can try- these won't let you control the fan manually, but they might solve the game lag problem:

1>Check CPU cooling policy is set to "Active", not "Passive".

If (1) doesn't solve your problem, update the BIOS.

A newer BIOS might control the fan speeds differently.

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Thank you johnwinchester, but I have already tried those things. Do you have any other ideas about what might be the problem? I repeat that the fan never goes above 50% except when I am updating the BIOS.