Dell XPS Studio 16 High Pitched Sound

Hi all,

Received the XPS Studio 16 several days ago, i7 processor, 6GB ram etc, very nice laptop.

Except!

There is a frustrating high pitched sound coming from the top left of the laptop. A Dell technician came round and replaced the fan and this high pitched sound is still emitting. Because I am young, I guess my ears are more sensitive to the high pitched sounds, but even though it is not very loud, the pitch of the sound is the problem.

I have Dell support calling me soon to see if they have a fix, however I am just wondering if anyone has come up with a solution?

Could anyone hold their ears up to the top left underside of the laptop and see if they can hear the sound on the 1645 model? That will determine whether there is a problem with this specific laptop or if it is general.

The sound is not continious, it is very high pitched and is in addition to the fan and hard drive spinning. The sound is like a beep on and off, sometimes longer than other beeps. When I say not continious, the duration of it going on to off and back on again is in milliseconds rather than seconds. I have a Dell Studio 15 too in front of me and this sound is not audible.

Any advice or anything regarding hardware or software changes to get it fixed would be appreciated! Thanks.

 

Hi it's definitely cpu as it switches between its C-states...Mine does the same and honestly most of the modern laptops do that, but the CPUs vary in how loud the noise is and also as you mentioned people over 30-40 are usually not able to hear that...only way to at least partially solve the problem is to try another CPU (at least with core ix cpus)

 

i think its that sqeeky sound is called CPU whine, you can turn that off with RMclock.

 

No, with new core iX architecture you can't...

 

Solution for high pitched noise:

1. We have to change the registry.
Typing in the command line "regedit", you go to the registry key:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b740d00 \ 5d76a2ca-e8c0-402f-a133-2158492d58ad

2. Included option in this branch will enable and disable the idle processor. In this case, it should be included.
To enable one or another hidden parameter, it is necessary to find and edit the value DWORD, changing its value SettingValue from 1 to 0.

3. Then, through the control panel - power - in the settings mode select power management processor.
There will be an option disabling idle processor and high pitched noise immediately disappears.

 

So the solution to the noise is to be less energy efficient hmmm.... to bad it can't be fixed with a bios update.

 

Wow, thanks a lot guys! I googled this issue on a long shot (especially since I used the specific laptop model), but I never expected such a nice little solution. I had a suspicion that it was the processor; I even thought it may have been because I somehow damaged it by setting the minimum processor state to 0%.

Anyhow thanks again. This forum is a lifesaver. The noise wasn't obvious with the fan on, but when I had it on power saver without the fan going, it got annoying real quick. I use power saver to save my lap from burning, not to save battery life, so the fix is just fine for me.

 

I love this forum, the solution is perfect.