Luke M wrote:
Most cheap motherboards don't have heat sinks on the VRM. Is it safe to use a tower CPU cooler, or is a down-blowing cooler mandatory?
Check with the supplier of your motherboard. They may know. We don't.
Obviously this could in principle compromise your board's reliability. Whenever you go with a non-supported configuration, you're taking a chance...
But how much reliability do you really need anyway?
For real-world data about VRM cooling, see: http://www.silentpcreview.com/Small_HSF_2012/