QUOTE(Gazc0igne @ Mar 6 2013, 04:40 AM)
only thing to look for is the supply voltage as the 360 mobo doesnt have 12V AFAIK youd need a 5V one.
its actually 5v that is hard to find a source for on the mobo...well at least one that's switched.
im assuming this console is for xbox live?
really the best sensor your going to find is in the dye, which you can access thru i2c on the phat boards (not sure about slim) so really you should just need a small cpld or pic, a bit of knowledge of codeing, lcd and driver.
but if you dont know how to code and dont want to learn just for this project you can pickup a cheap fan controller on ebay...like this one:
http://www.ebay.com/...5919#vi-contentwhich is the one i used on glow in the dark:
http://forums.xbox-s...howtopic=611313anywhere on the heatsinks is good, towards the center is better but you should go for the best thermal contact, expect it to be low by about 8-10C compared to the dye.
putting it under the heatsink is going to be a big hassle and if you get it too close to the dye then you are likely to crush the sensor (which i found out while testing deathbox: link in sig to wip).
good luck.