Re: [OT] RaQ2 and power

[Andy Ruhl <acruhl%gmail.com@localhost>]

On Tue, Dec 8, 2009 at 2:41 AM, Jukka Ruohonen <jruohonen%iki.fi@localhost> 
wrote:
> Hello.
>
> Slightly off-topic, but I would like to share this observation nevertheless.
>
>  Setup: RAQ2, NetBSD 5.0, 256 mb of memory, 2.5" drive, no fan.
>
>  Problem: random reboots under either heavy disk or network load.
>
>  Observation: when the fan is connected, no problems occur whatsoever.
>
> I have stress tested the system by repeatedly transferring about 200 gb of
> data to it. No problems when the fan is connected; when it is disconnected,
> the system reboots after about 50 mb. Heating can be ruled out by the fact
> that the box is running fine if the fan is connected but it is blocked by a
> small bolt.
>
> Would the conclusion be that the (default) PSU is defective (by design)?

Well, the fan probably works as an inductor to some extent.

Or you could have bad capacitors in the power supply. This is probably
more likely than anything else. These things are getting old now.

Andy