I have a GL703GS that's brand new this week with terrible coil whine. I could have RMA'd it but it wouldn't have made a difference - this is simply how these laptops are built. We all need to accept that. I repeat, we all need to accept that these laptops make this noise.

Let's not worry though as we have a viable option to stop the whine.

Visit https://support.microsoft.com/en-us/help/975530/stop-error-message-on-a-windows-server-2008-r2-based...
and apply the reg tweak that Microsoft provides.

Reboot and then download Throttlestop and disable C1E. You can also click save so that next time you open Throttlestop it will automatically stop C1E.

Now go to the following and set up a task to run Throttlestop at login:
http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/#post-6865107

When it runs at login it will popup but you can close it straight away manually.

Okay so now you're sorted and can stop worrying about coil whine.

A BIOS option would be the preferred way of dealing with this! Especially because Throttlestop needs to be run again manually if you put your laptop into sleep mode and then wake it, as C1E will be back on after the reset.

I did use a watt meter on the AC plug and there was no tangible increase in wattage usage with the c-states+ C1E disabled via the method above. In fact, I tried a few tests and was shocked to see how the c-states provide only a few watts saving at idle.

ASUS should step up and offer a C1E BIOS option though. We do all need to accept however that this coil whine is an intrinsic hardware issue that can't be fixed. We're lucky however we have a way via Throttlestop to prevent it bothering us in exchange for a couple of watts.

snuffpig wrote:
I have a GL703GS that's brand new this week with terrible coil whine. I could have RMA'd it but it wouldn't have made a difference - this is simply how these laptops are built. We all need to accept that. I repeat, we all need to accept that these laptops make this noise.

Let's not worry though as we have a viable option to stop the whine.

Visit https://support.microsoft.com/en-us/help/975530/stop-error-message-on-a-windows-server-2008-r2-based...
and apply the reg tweak that Microsoft provides.

Reboot and then download Throttlestop and disable C1E. You can also click save so that next time you open Throttlestop it will automatically stop C1E.

Now go to the following and set up a task to run Throttlestop at login:
http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/#post-6865107

When it runs at login it will popup but you can close it straight away manually.

Okay so now you're sorted and can stop worrying about coil whine.

A BIOS option would be the preferred way of dealing with this! Especially because Throttlestop needs to be run again manually if you put your laptop into sleep mode and then wake it, as C1E will be back on after the reset.

I did use a watt meter on the AC plug and there was no tangible increase in wattage usage with the c-states+ C1E disabled via the method above. In fact, I tried a few tests and was shocked to see how the c-states provide only a few watts saving at idle.

ASUS should step up and offer a C1E BIOS option though. We do all need to accept however that this coil whine is an intrinsic hardware issue that can't be fixed. We're lucky however we have a way via Throttlestop to prevent it bothering us in exchange for a couple of watts.

Will try tommorow, thanks.

snuffpig wrote:
When it runs at login it will popup but you can close it straight away manually.

If ThrottleStop can solve your problem, why not set it up properly? It has a Start Minimized option so it will not popup. It has other options like Stop Data so you can leave it running in the background 24/7 with next to nothing for CPU cycles being used. You can also disable the system tray and task bar icons if you do not want to see it running quietly in the background. When you resume from sleep, it should take care of the C1E status automatically if it is left running.

Fantastic I'll do just that. I hadn't looked into the options that far.

It worked, thank you guys!

I've checked the "Start Minimized" option so there's no need to manually close it.
It works even after sleep.

meddylad wrote:
Have you noticed if the fan remains constant whilst using this tweak? I tried the other version listed below but found when idle was disabled, the fan would be on constantly

(before that, I found the Asus Lighting Service was responsible for the fan being on contantly - when the service was disable, the fans would often remain off and only cycle when needed)

This is the other option for preventing coil whine

1. Execute: "regedit"
2 .Locate: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b¬740d00 \ 5d76a2ca-e8c0-402f-a133-215849¬2d58ad
3. Change Attributes from 1 to 0.

Idle temperatures tend to rise a bit when you disable c1 states, maybe that's why the fans are always on.
Have you checked the temperatures before and after you disable C1E?

Disabling C1E will not raise temps. My fans don't come on much when set to silent when on desktop via the gaming center.

Can you set your power plan to balanced, then click on the power icon in the tray and make sure the slider is set in the middle?