PC Won’t Boot after XMP enabled

[James640]

Specs:

I9-13900k 

4070

asus tuf z790 

64GB 600mhz ddr5 ram

850w Gold plus ps

 

I bought a new mb installed it and it booted up then I enabled xmp before installing windows, mb drivers or doing any bios updates. Now the mb rgb lights turn on but it won’t boot, I’ve tried taking cmos out resetting it, trying one stick of ram, reseating cpu. Nothing works, please help 

[RONOTHAN##]

What's the exact model of RAM, and what memory slots in particular are you using?

[SorryBella]

1 hour ago, James640 said:

but it won’t boot

DDR5 memory training sequence is famously long, how long did you let it idle before you declare that?

[Jmotto]

What size and speed is your ram config. I had a 4x16 6600mts corsair dominator platinum that would not run on anything other than base speed. I pulled 2 dims and tried 2x16 and it worked fine with xmp. I just switched to the same model just a 2x32 and it passed all memtest86 tests with 0 errors and works perfectly on xmp.