Poor man's way to check cooling effectiveness....
Straight_Man
Geeky, in my own wayNaples, FL Icrontian
I use a very simple tool to tell if my case is positive pressure inside (bad) or is negative pressure inside. I got a little electronic clock plus indoor-outdoor thermometer in one, for all of $5.99 plus tax. Clock\thermometer sits on top of case Iam testing. Outdoor temp bulb probe sits outside case fans about 1\2" from them.
Exhaust temp is 1.5 C reliably GREATER than case ambient temp from MBM 5, and case temp floats at 4.4-5.7 C more than room temp. That tells me I am doing effective cooling (temp out should be more than temp of air going in, and room temp is what goes in). Right now CPU is 15 C above case, that is universally true even if room temp gets up to 33 C (IT CAN, in Florida if AC goes out due to thunderstorms in hotter rainy season,and HAS, with boxes running on UPS), and Barton CPU is stable up to 53 C. My room temp in room with the two boxes running in summer is normally 27 C to 28 C, with AC on. Right now room is 22.7 C, Case temp is 27 C, and CPU is floating between 42 and 43 C.
John.
Exhaust temp is 1.5 C reliably GREATER than case ambient temp from MBM 5, and case temp floats at 4.4-5.7 C more than room temp. That tells me I am doing effective cooling (temp out should be more than temp of air going in, and room temp is what goes in). Right now CPU is 15 C above case, that is universally true even if room temp gets up to 33 C (IT CAN, in Florida if AC goes out due to thunderstorms in hotter rainy season,and HAS, with boxes running on UPS), and Barton CPU is stable up to 53 C. My room temp in room with the two boxes running in summer is normally 27 C to 28 C, with AC on. Right now room is 22.7 C, Case temp is 27 C, and CPU is floating between 42 and 43 C.
John.
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