Our coldplate levelness test is next. For this one, we’re using specialized equipment for measuring the depth of the coldplate from a known 0-point, as tested with a needle that gauges the depth point-by-point on the coldplate. The depth is measured in microns, and the unachievable-but-ideal result would be that the depth is the same across the entire coldplate when mounted, ensuring flat contact. Note we specifically said “when mounted,” here, because there will be some warping of the plate to match the curvature of the IHS with some coolers.
The chart shows the maximum depth measured, the minimum, and quartile results in the box.