I have a Gigabyte Z690 and when I mounted Gen 4 WD SN850 M.2 on it instead of the Gen 3 WD SN550 M.2 I started to get WHEA warnings (PCIe) in the hundreds and thousands! I engaged Gigabyte over weeks following their requests for data…. long story short they ended up basically telling me to do one (even tho I pointed out they’d had a recall on another model Mobo with the same error!). I’ll never buy Gigabyte again.
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