Update: Adding a waterblock to an ASUS RTX4090 TUF gpu does NOT void warranty. Asus and BPCTech acknowledge. (Plus Corsair inform they cover and compensate any water damage). Time to watercool :
Asus improves board warranty: Memory OC and beta BIOS covered - HWCooling.net
ASUS TUF Gaming A15 (2022)|Laptops For Gaming|ASUS USA
DISCUSSION] ASUS Motherboard Warranty is practically worthless... : r/ASUS
TUF-RTX3080-O10G-GAMING|Graphics Cards|ASUS USA
Update: Adding a waterblock to an ASUS RTX4090 TUF gpu does NOT void warranty. Asus and BPCTech acknowledge. (Plus Corsair inform they cover and compensate any water damage). Time to watercool :