HEY YOU GUYSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS.
I AM NOT CRAZYYYYYYYYYYYYYYYYYY!
Today I got my replacement Gigabyte 4090 Gaming OC shipped to me super fast and well what do you know... temps are WAY FREAKING BETTER!
My results in my 22.5c room running at 100% load (TWW3 battle benchmark fully maxed out) are:
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Old card OC BIOS with undervolt to 2700mhz / 1000mah:
- 100% load temp - 78c (fan at 89%)
- Idle temp - 52c (fan at 60%)
New card OC BIOS @ Stock:
- 100% load temp - 65c (fan at 79%)
- Idle temp: 52c (fan was 0% then kicks in to 60% at this temp and quickly lowers)
New card OC BIOS with undervolt to 2700mhz / 1000mah:
- 100% load temp - 61c
- Idle temp: 51c (fan was 0% then kicks in to 60% at this temp and quickly lowers)
New card OC BIOS with undervolt (above) and custom fan profile:
- 100% load temp - 66c (fan at 68%)
- Idle temp - 41c (fan always on 45%)
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What is apparent is that the card running far cooler as it clearly has better thermal contact with the cooling system and also dumps heat and cools from load to idle very quickly compared to the old card.
To say I am happy is an understatement and I am very relieved that my store shipped a new one out to me immediately as they had excess stock... although for this price you do kind of expect that level of service. A week later and maybe the stock situation would have been worse and I wouldn't have got a replacement.
Now to get back to enjoying my gaming...