Low voltage - MB or PSU?

Most likely the PSU.

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Out of curiosity, is it even possible for a motherboard to cause low voltages? (I mean other than the obvious way of using electricity.) I always figued this strictly for a power supply problem.

<pre> <font color=purple>Yes I'm insane, but it's a <font color=blue><i>good</i></font color=blue> kind of <font color=red>crazy</font color=red>. </font color=purple></pre><p>@ 184K -> 200,000 miles or bust!