Don’t worries the ROG 6 Extreme board covering 3 years warranty.*
Do you have friends whom use other DDR4 sticks nearly your resident? Just borrow them 2 sticks.
I want to make sure It’s motherboards fault not CPU IMC.
It’s easiest way to testing your CPU IMC. if you press Mem OK button once and the board led show those memory sticks OK for your rigs.
Trying to do my 3 and 4 step again. If anything ok the problem was your Corsair memory kit.*
If it still 9c error code, It may from CPU IMC or board, Bring your CPU to testing with the computer retail shop nearly.
If there are no problems with your CPU with other X299 mobos.
RMA your board or exchange the board with the store you’d purchase it.
RMA may take a longer time , for me exchange or claim your warranty with the store, you’ll have the new one immediately.*
Windows 11 CB 25997.1010 Core i9 7980XE 02007006 MCE ME 11.12.94.2479 R6E OFFICIAL BIOS 3801 SAMSUNG OG9 FW 1019.0 SSD 970 EVO PLUS 1 TB x 3 NVIDIA RTX 4090 GAME READY 546.17 64GB GSKILL DDR4 3200MHz JBL 9.1 Sound Bar DTS-X