RM One Extremely loud high pitched noise coming from pc

[Tesla]

as the title says, as the pc boots, once it has started up the sound drivers, it makes an EXTREMELY loud high pitched noise (seemingly as loud as the fire alarm sirens we have in school) (this is all while it is still showing the starting windows splash screen)

 

any pointers? is this basically a dead sound card?

 

i almost dont want to work on it as the noise is unbearable.

 

thanks

Edited March 11, 2014 by Tesla

[synaesthesia]

If it#s the right model, flip the switch at the back of the PC at the top of the cable bay area

[Tesla]

it's a newer RM One touch i assume you mean the on off i can see switch that isnt the power supply?

 

I cant touch it atm as there are people working in here haha, just want some ideas thrown in for me to try later on....

 

edit: I Have a splitting headache as it is!

Edited March 11, 2014 by Tesla

[synaesthesia]

Ah, not sure for the newer ones sorry. For the last generation there's a switch, not related to power, right in the middle at the top of the cable bay which is something to do with speakers & sound.

[Tesla]

it's related to the microphone jack, as soon as i plug that into the back of the pc you get the noise.... they can probably cope with no built in microphone for now, but why would it do this????

[Bananas]

Is it feedback and the input gain on the mic has been turned right up?

[Tesla]

mic was down fairly low, it seems to be working okay now, still cant quite get my ahead around what caused it...

[Norphy]

We have had a couple do this. You can play it like a Theremin if you touch it on the right places on the case.

 

We fixed them by disconnecting the microphone in the screen. The amount of people who used them could be counted on a blind butcher's hand.

[Synkrox]

I've seen this before - As the folks above said - Mute the mic/line in.

Chris

[Kenny_G]

I've seen it before when something like a paper clip gets pushed into the microphone hole on the screen.

[rad]

If it's one of the newer ones, is it not under warranty?

[Tesla]

It will be under warranty, yes, but it seems to have fixed now, will try again in the morning. I was trying to see if nayone else had had a similar issue

[rad]

If it were mine, I'd log a call with RM, the engineer "may" of come across it before.

[truebluesteve]

We've had this here a few times - it is feedback and related to the microphone. If you disable it the problem will disappear!

[Tesla]

it seemed to work fine still this morning, (with the microphone working too) so i put it back in the ICT suite, i'm sure if it breaks again i'll be told pretty quickly!

[Chris_]

There's an RM TEC article if you want the RM solution: TEC2011705