RAM Upgrade Issue - Windows 11 causes boot loop during repair mode
RAM Upgrade Issue - Windows 11 causes boot loop during repair mode
The motherboard is an ASRock Z690-C/ac. The CPU model is still uncertain. RAM was upgraded from 2x16GB to 4x16GB, all C18, DDR4 3600 (PC4-28800). Windows 11 was installed. My friend noticed the new RAM had different labeling but identical specs. After installation, launching COD caused repeated freezing. Removing the new sticks didn’t fix the issue; it kept looping in slots 2 and 4. The debug light illuminated. Trying a previous RAM stick worked temporarily. CMOS was cleared, but system time remained incorrect, leading to another boot loop. BIOS reset was set to UEFI defaults. Windows won’t restore from the restore point. Any further advice? He’s heading to the store for a USB stick to possibly update BIOS or reinstall Windows.
separately packaged kits of RAM, even if they match the same make & model and specs, are not assured to function together.
Generally, there are variations in materials and/or die details.
Test each 2x kit individually.
In DIMM slots A_2 & B_2, if both operate correctly when used separately, compatibility is likely the problem.
If further issues persist beyond hardware mismatches, it could stem from software-related causes.
Develop a fresh OS installation package via the MS Media Creation Tool and attempt a Windows reinstall using the newest available version directly from Microsoft.