There is not a disassembly so we do not know know if heat sink or thermal tape is used inside. The two fans are there to protect the AW3423DW from overheating and follow the industry standard sound pressure level specifications (example < 32db.). The speed of the two fans will vary according to the internal/ambient temperature level. You might hear fan noise a few minutes after you turn off the monitor since the monitor may still be doing some internal processing such as Pixel Refresh operation. Keep your monitor well ventilated. In summary, the AW3423DW is working as designed.
It would be amazing if you could clarify what the purpose of the "system fan" is in the AW3423DW QD-OLED Monitor. We know there are to 2 fans in the monitor, one for the G-Sync Ultimate module and another one which is the system fan. Is the system fan supposed to cool down the internal components, including the QD-OLED Panel? So in other words, does this monitor has a "heat sink" which results in lower image retention and therefore a lower chance of burn in? It would be great if somebody from Dell engineering could comment on this as many customers would like to understand this a bit better. Thank you very much
AW3423DW, what is the purpose of the "system fan"?