[Bigmack]

to get the rated Qmax of 80 watts the chip consumes 8 amps at 16.1 volts or 128.8 watts. basic ohm's law: E=IxR (E=volts, I=amps, R=ohms) the resistance of each chip at rated voltage and current is 2 ohms (R=E/I) in a series circut, resistances add (2ohms +2 ohms + 2 ohms =6ohms) total applied voltage, 24 volts, total circut amprage 4amps(I=E/R). watts =volts x amps, total watts consumed by the three chips in series, 96 watts. this results in cooling performance less than a single pelter at rated voltage and current. as far as the power supply is concerned using the +12v and the -12v rails will produce 24 volts, however, only at a current equal to the -12v rail. trying to draw more will either damadge or shut down the power supply.