Normal
I did some of my own digging, and I found out that there is a straightforward relationship between air flow, heat transfer, and temperature difference:CFM = 3.16 * Watts / DT (degrees Fahrenheit)I couldn't find an official source for the TDP / heat dissipation of my graphics card, so I'm using the rated power consumption of 185W as an approximate (an overestimate?). If I want to maintain at most a temperature difference of 60C (110F), which would be a maximum temperature reading of 85C with ambient temperature at 25C or lower, then I would need airflow of at least 5.3 cfm (9.0 m3/h). With two or three fans, and each fan rated at 8.9 m3/h, that leaves quite a bit of headroom for inefficiencies (resistance, air bypassing the heatsink, etc).
I did some of my own digging, and I found out that there is a straightforward relationship between air flow, heat transfer, and temperature difference:
CFM = 3.16 * Watts / DT (degrees Fahrenheit)
I couldn't find an official source for the TDP / heat dissipation of my graphics card, so I'm using the rated power consumption of 185W as an approximate (an overestimate?). If I want to maintain at most a temperature difference of 60C (110F), which would be a maximum temperature reading of 85C with ambient temperature at 25C or lower, then I would need airflow of at least 5.3 cfm (9.0 m3/h). With two or three fans, and each fan rated at 8.9 m3/h, that leaves quite a bit of headroom for inefficiencies (resistance, air bypassing the heatsink, etc).
