Issues with the latest installation, attempting to start in BIOS mode
Issues with the latest installation, attempting to start in BIOS mode
The Z97-A board doesn't support NVMe at all. It uses a slot-based physical design, not the newer protocols. An NVMe drive won't fit. (It seems unlikely it would affect the initialization process.) For storage options, you'd need a standard SATA M.2 or an NVMe PCIe card—avoiding the risk of POST issues.
Considering another perspective, power problems might not be resolved by simply clearing the CMOS and checking the pins. The presence of a motherboard light suggests an issue beyond just the CMOS connection. Verify the integrity of the cables linking the motherboard to the CPU—ensure they are properly seated. Don’t overlook the 24-pin or 4/8-pin CPU cable, and explore the possibility of using a CMOS battery backup.