Now that is a serious heatsink/fan combo! I don't trust the EXIF temp info because I have heard the sensor used for that is located away from the sensor itself. If your using a 12706 TEC your going to need 6 amps to get it really going. A few seconds at 6amps and you shoud have good cooling on the cold side immeadiately provided the heatsink fan is running to extract. Where is Rowland, he knows all about the voltage and current requirements of these things. Even throttled way back that fan/heatsink shoud be giving you good cooling that you can feel straight away.
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