Modelled thermal performance and sustained processor power of the fanless Thinvent PPC15 15-inch industrial panel PC
Will the fanless PPC15 run on your shop floor?
The PPC15 takes 15 W processors only and stands with its screen upright in still air. It runs at its 15 W continuous base power all day without slowing down up to 50 °C.
The processor reaches its 100 °C limit at 47 W at 25 °C and 41 W at 35 °C. It reaches 100 °C at 34 W at 45 °C and 31 W at 50 °C.
At 15 W on 25, 35 and 45 °C shop floors, the front screen and bezel reach about 33, 42 and 52 °C.
On those shop floors, the finned rear heatsink hottest point reaches about 46, 56 and 65 °C. The average rear surface reaches 36, 45 and 55 °C.
At 15 W on 25, 35 and 45 °C shop floors, the processor runs at 52, 62 and 72 °C. All three temperatures stay well below the 100 °C processor limit.
The processor boosts to its 55 to 57 W maximum turbo power for short bursts. A short burst at 35 °C peaks near 66 °C before settling to 63 °C at 15 W.
If a continuous load needs 55 W, the processor reaches its 100 °C limit. The processor then lowers its power consumption (throttling) to stay at 100 °C.
In a panel cut-out or enclosure wall, the finned back is inside the cabinet while the screen faces out. Cabinet air temperature is the temperature that matters for the back.
Leave clear space for air to rise past the rear fins. Ventilate the cabinet so trapped heat does not push air behind the computer past your target temperature.
Sustained processor power across shop-floor temperatures
With the screen upright in still air, the processor reaches its 100 °C limit at 53 W at 15 °C. On a 50 °C shop floor, the processor reaches its 100 °C limit at 31 W. Both figures are well above the continuous ratings of each 15 W processor configuration:
Shipped Intel Core i3-1215U: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Shipped Intel Core Ultra 5 125U: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed Intel Core i3-1315U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed Intel Core i5-1335U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed Intel Core i7-1255U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed Intel Core 5 120U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed Intel N5095A option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed AMD Ryzen 5 7430U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Listed AMD Ryzen 5 7530U option: 15 W base rating and 12 W minimum assured rating. Its 55 to 57 W maximum turbo rating is for short bursts only.
Rear heatsink and front screen temperatures by processor power and shop-floor temperature
Steady temperatures on the rear heatsink hottest point and front screen and bezel across 25 to 45 °C shop floors. Total heat includes 7 W estimated from the display and 5 W from the rest of the board. Under a continuous 55 W load, the processor reaches its 100 °C limit. The processor then lowers its power consumption to 47 to 34 W to stay at 100 °C.
Rear heatsink, front screen and processor temperatures against processor power
In still air on 45, 35 and 25 °C shop floors, temperatures rise linearly with processor power. The processor runs without throttling up to 34, 41 and 47 W at 45, 35 and 25 °C. Above those powers, the processor reaches its 100 °C limit and lowers its power consumption to stay at 100 °C.
Ninety-minute response from idle to a maximum turbo burst and 15 W base load
On a 35 °C shop floor, a short 55 W turbo burst takes the processor to a peak near 66 °C. Under continuous 15 W base power, the processor settles near 63 °C over 90 minutes. The rear heatsink hottest point settles near 56 °C over those 90 minutes. The front screen and bezel settle near 42 °C.
Effect of display heat on processor, rear heatsink and front screen temperatures
The processor runs at 15 W base power on a 35 °C shop floor. Varying heat from the 15-inch display between 0 and 10 W raises temperatures slightly. The front screen and bezel rise by about 1 °C per 3 W, from 40 to 43 °C. The rear heatsink hottest point rises from 54 to 57 °C, and the processor rises from 60 to 63 °C. Maximum continuous processor power before reaching 100 °C drops slightly from 41.7 W to 40.4 W. Estimated heat from the 15-inch display is 7 W.
