been there, still is, and no reply from Dell

 

TOHJ

Could it be a loose pease of plastic inside the fan vent, that is vibrating due to the air circulation?

Or a little cable that is vibrating?

Normaly the shouldn`t be anything able to produce a high ptch noise at the heat-sink.

 

regards

Ken

It is coming from the heat sink.  Same as before.  If I put my hand over the vent covering the heat sink it blocks the sound.

Thanks,

Malinda

What does Dell tell you? 

dumb question, but the 280`s have a heatpipe on the CPU. These heatpipes are passive coolers and don`t have anything on them to unplug.

When you replaced it, was there a cooling-pad or heatsink compound on the CPU/heatpipe base?

If compound, could it be, that you didn`t put any, or not enough compound on the heatsink?

Are you 100% sure, that the noise is not coming from the case fan?

You could try to unplug the fan and listen, if the noise is still there. But only let the system run as short as possible.

One more question, when does this noise start? Directly on boot, or first when the system has been running a while?

regards

Ken

Message Edited by ken4711 on 01-31-2005 06:42 AM

On the first system, we took the entire thing apart with help from the Dell tech.  When the heat sink was unplugged the noise stopped.  A new heat sink was put in.  The sound continued.  They sent a replacement system and it is doing the same thing.  The fan is quiet.  The noise is not as severe with the replacement system but it is still very present.  I truly hate to send this system back as I've got a lot of business stuff on it and do remove it all and save it all is a hassle.  But, I don't know if I can stand it much longer!!!  It's a communist plot to drive me crazy.

I don't know anything about the computer.  When the Dell tech was on the phone he had us unplug the heat sink, he called it.  He also had us unplug other things. The componet (heat sink) was green, I think with a cover on the top that flips up.  The noise didn't used to start until it had been running awhile but now it pretty much starts on start up.

Thanks