I bought a xenon test kit recently, have changed the thermal paste to arctic silver, upgraded the GPU heatsink to the newer falcon model, and added a small fan to the extra radiator the newer heatsink provides. Here are the temp readouts for idle in fsd with fans set to 100%. CPU: 62.5C, GPU: 52.7C, MEM: 55.2C, and CASE: 32.8 These temps seem to stay consistent "only varying in small fractions of degrees". And only go up by like a degree or two when playing games " if that". Just wondering if these temps are good, and whether it would be OK to proceed playing for long periods of time.
My retail Xenon had a very similiar temp. I would say your Xenon is normal. Although mine was a few degrees cooler with the fan set to 100%. Is it like an airport in your room when your fans are set to 100% ?
My falcon jtag, with Arctic silver 5 thermal paste, can hit up to 49-50C with fan speed on 100%. It's just a simple fact that the 360's do not have good cooling. As the newer consoles came out EX: zephyr falcon jasper, they gradually were given smaller ~nano meter~ chips, decreasing their input voltage required, as well as dropping their heat output quite alot, but hey, even jaspers can get hot as tits. Those temps on a xenon is pretty normal lol.
