I have an open system where I have other RTX 3090 FE installed, I bought two of these cards, these cards are right on top of these cards and they are impressively hot. Disconnect all the others and leave one of them alone, thinking that the temperature of the others could be having this effect on them, and no, they continued with the same temperatures, with levels of 68ºC when the 3090 FE are kept at 52ºC ORIGINAL WITHOUT TOUCHING THEM . If you plan to put a water cooling system, buy them, they are very good, but if not! Do not buy it, they will be a total headache !!!