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I have the monitor user manual and it is of no help. All there is on the adjustment menu is the three presets of "Blue Preset", "Red Preset" and "sRGB Preset". Unfortunately, this does not help me as I do no know what temperature those presets are calibrated for. Without knowing the values for the presets, I cannot even use the custon RGB setting portion of the menu to adjust, since I have no starting reference.
Surely somewhere in Dell these values must be known.