Testing a bad mobo/CPU/power-supply?

[Dan Ritter]

On Fri, May 18, 2007 at 08:34:58PM -0400, Derek Atkins wrote:
> I just acquired the parts to build a new computer but it's
> not working.  I put the mobo into the case, installed the
> CPU and RAM, then plugged it in and.... nothing happened.
> The mobo is getting power because the mobo's "power led"
> (warning light) is lit.
> 
> When I hit the power button the fan doesn't turn on, the
> HDD doesn't spin up (when I have it attached)...  Nothing.
> I even tried uninstalling the RAM, just in case.  Still
> nothing.  Nothing on the monitor.  Just.. nothing.

I've seen this with bad power supplies. One rail is working
(enough to turn on the mobo light) but not the other.

If you have a voltmeter to hand, checking +/- 5V and 12V output
ought to show the problem.

-dsr-

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