Question My Computer Will Restart When Using Dual Mode?

I have two ram sticks 32GB DDR5 one 2nd ram slot and one in 4th ram slot notice when start up games its just shuts off and restarts so tried it with single ram stick and is working perfectly am kinda worried now. Games run smoothly with single ram specs

ASUS ROG Strix Z690-F GAMING WIFI + Intel Core i9 12900K CPU​

4080
1000W MSI PSU Gold
32GB Ram ddr5 5600mhz

I have ordered new ram just incase!