Service policy for under warranty defective hardware

I have a brand new build, 1 week old, that I completed using the Microcenter combo of Core i7-13700K, Z790-P PRIME WiFi ATX Motherboard, and Ripjaws S5 32GB (2 x 16GB) DDR5-6000 PC5-48000 CL36 Dual Channel Desktop Memory Kit F5-6000J3636F16GX2-RS5K - Black. This is the 3rd of 3 I have using the exact same build. The other 2 run just fine. This build has default settings for UEFI/BIOS as do the other 2 that work. No overclocking has been done. This computer will run fine with either single stick of the Ripjaw memory, but it unstable with 2 sticks regardless of which memory slot the sticks are placed in. When I say unstable, I could not get through Windows 11 home install on a dozen attempts without going to 1 stick. Most likely the problem is the memory itself, CPU memory controller, or the motherboard is faulty. It is also possible each one of these specific components is just on the edge of acceptable tolerances and in combination the 3 specific items wont work together. Something has to be replaced, but it could be any of the 3. Since this would be warranty repair regardless of which component is faulty will Microcenter service department take this box in, diagnose the faulty component, and replace it at no cost? If not, what would it cost? I ask because I live 30 miles away one way and I really don't want to make 6 trips or more to figure out what the defective item is.