The New PS5 is Actually Better now with a sequel:
I'm liking this new revision more and more. The only thing that still sucks is that there's apparently still a fan lottery (no idea about coil whine, but if the mobo is on its third revision maybe they did sth to improve it).
Anecdotally, some of those who tried to fix coil whine after excluding or fixing things like production stickers left in the fan grill, fan mounting issues, and noisier fan models, involved putting additional coating on components in the power supply block, which is separate from what has been analyzed in the heatsink videos.
I haven't seen anyone comment on that component being different, and that would require a more invasive teardown.
Coil whine fixes for things like video cards have at times included adding additional wax or plastic coatings to inductors or VRM components, which would require piece by piece evaluation of the PCB and PSU.
I guess the arguement was higher temps located in a smaller area is not as good as lower temps over a wider area (ie if you did some math maybe it’s higher but not actually expelling more heat).
The original claim seemed to be using the IR readings of one part of the heat sink as a proxy for the SOC, while also somewhat confusing the temperature of one part of the heat sink as being the temperature of the air, which is something else the IR camera isn't suited for.
IMHO if you capture all the exhaust from PS5 and funnel to a smaller localised point so you can measure the sum of all heat expelling- repeat for both consoles and you have a clearer picture of how they compare.
If you routed all the exhaust from the PS5 to a sealed container and measured the heat output, you'd get values corresponding to the power meter measurements at or somewhat above 200 watts of power for however long you collected the exhaust.
All but a mostly trivial amount of power consumed comes out as exhaust heat.
Then you just need to compare wattage drawn…but maybe simpleton goonergaz doesn’t understand the laws of heat like when I was told heat doesn’t rise on this forum lol
Heat travels from regions of higher heat content to lower. In a fluid under the influence of gravity, like atmospheric air, warmer air tends to rise. This effect is insufficient for the power levels of concern, and an engineer who designed the PS5's scheme outright stated it was negligible. Other sources indicate it's trivially overwhelmed by any active air mover.
I wonder if the old heat sink was designed before the decision to go liquid metal...
One of the larger changes was significantly paring back metal that wasn't in line with the back exhaust port. Perhaps how much of the back side was going to be taken up by the IO panel was not definitively known, since so much of the original heatsink's metal that exhausted into the backside of the IO was dropped or moved up to the part that wasn't blocked.
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