A3010 with a noisy transformer.

[Nutter]

I recently bought an A3010. I've had it powered on a few times with the motherboard out of the case and it was pretty much silent. Now that I have it back in the case (both transformer case screws in) it makes an irritating hum. Is this usual for an A3010?

I have two A3000s and they're both silent in their cases.

All the metalwork is attached and seems fairly tight. Is there something I'm overlooking here?

[RobC]

I've had the same problem on an A3010 - does yours have any PCB spacers fitted on the transformer?

I've seen A3010s with and without the spacers fitted and the ones with spacers seemed less noisy.

[Nutter]

I'm not sure what you mean by "spacers". Mine has the transformer attached to the mainboard by 2 screws from underneath. They screw into 2 diagonally opposite hex pillars - I suppose you could call them spacers. Wonder would it help trying to brace the other 2 corners of the transformer?

Pity it's so noisy as I was hoping to make it my everyday machine, now it has 4MB of RAM.

[1024MAK]

A transformer that is fixed to something else can result in the something else acting as a sounding board

A better method of fixing can sometimes help, but not always. In some situations, rubber washers or similar can help dampen the vibrations.

Mark