[LUNI] Laptop makes a funny noise

[Mike Scott]

It could be a DC-DC converter .
The EL backlight uses one IIRC.
Maybe one of the transformers has come loose and you're getting harmonics.
That's usually high-pitched.

- Mike Scott


> -------- Original Message --------
> Subject: [LUNI] Laptop makes a funny noise
> From: "Jay Strauss" <me at heyjay.com>
> Date: Sat, October 13, 2007 6:12 pm
> To: "Linux Users Of Northern Illinois - Technical Discussion"
> <luni at luni.org>
> 
> Hi,
> 
> I have an old IBM thinkpad that was still running fine with Ubuntu,
> until my 2.5 y/o kicked it off the end table (my fault for leaving it
> there).
> 
> Now it does not boot.   I makes a funny, really high pitched beep
> (like dog frequency range :) & click noise that seems to be coming
> from the center of the motherboard.  Please NOTE there is NO hard
> drive in the unit (at this point, I've completely disassembed it
> looking for loose connections or unseated things).
> 
> Anyone have any clues?
> 
> If not I'll probably buy a used one on ebay for $150, or if I can find
> one for parts for less.
> 
> Thanks
> Jay
> -- 
> Linux Users Of Northern Illinois - Technical Discussion 
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