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Do PSU's have thermal sensors...?

post #1 of 9
Thread Starter 
that you can get a reading off of. Aside from guessing based on PSU fan speed.
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post #2 of 9
Quote:
Originally Posted by dave12 View Post
that you can get a reading off of. Aside from guessing based on PSU fan speed.
Good question, dont think so because i havent seen software that gives CPu speed, plus how would the sensor connect to the computer? there are no sensor wires like there are with fans and its not "attached" to the mobo.
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post #3 of 9
Nopers.

I say that with the caveat that there may be a PSU out there that does, but your average PSU has nowhere to plug in to a sensor to get a reading. Though you might be able to ad hoc a solution. But nothing out of the box.
Edited by ocpokey - 4/19/11 at 4:17pm
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post #4 of 9
sum do have thermal sensors
but being abut to read them is another story
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post #5 of 9
You won't find a thermal sensor on 95% of PSU's out there but they're all rated to run at a certain temperature with a certain amount of efficiency. Most PSU's run between 40 and 50c.
    
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post #6 of 9
Thread Starter 
Thanks for the input. I just noticed that the fan in my PSU varies speed (with AIDA64) depending on load and was curious if there was a way to see whatever the fan is seeing.
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post #7 of 9
The fan has a thermal sensor likely connected to a heatsink which runs on top of some component or another. That's why I said you could probably ad hoc a solution by tapping in to that sensor, but it would require some modding, and possibly dangerous modding at that.
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post #8 of 9
Some high quality PSUs have sensors and they control the fans in them. There's no way to read it though.
    
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post #9 of 9
Most retail and OEM supplies will have thermistors that work in conjunction with some sort of speed control IC. But that is just within the PSU itself.

There is no pin on the 24-pin that gives the fan speed/voltage to the computer.

The only way I could see that possible is if they put a USB host controller in the PSU and then give you a wire to run into an internal USB header.

And that would be a waste, mostly.
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