The PCH is quite bulky and acts as a heat trap inside the enclosure the PCH will quickly heat to 57c when the fan engages (at 1000rpm ), and goes up/ down 500rpm for every 1c change, so the pitch (fairly similar to a dial tone is constantly changing, I have to use headphones to block the sound).
Worse still is that there is no provision of an air gap for the fan. It boils down to the PCH fan being slightly higher than the maximum permitted in the “Card Slot Area” of 0.6" (15.24mm) as stated the ATX specification.
Subsequently, that tab broke off when I tried to remove the GPU (it was quite flimsy). When assembling the PC I noticed that there was a clearance issue with the chipset fan that preventing the GPU from being fully inserted so the locking tab would close, I had to press down on the GPU way harder than I am normally comfortable with. They are simply too high and easily blocked by GPUs, making them run extraordinary hot and loud. There is a height issue with your x570 chipset/ PCH fans.
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