An IT technician is expanding the storage capacity of an executive ultrabook. According to the motherboard specifications, the laptop's secondary internal expansion slot is an M.2 slot keyed for B&M modules that operates exclusively over the SATA bus protocol. The technician installs an M-keyed 1 TB M.2 solid-state drive that uses the PCIe/NVMe protocol into the slot. Upon booting, neither the UEFI/BIOS setup utility nor the operating system recognizes the drive. Which of the following best explains why the new drive is not detected?
- The secondary slot only supports the SATA bus protocol, which is incompatible with the PCIe/NVMe protocol used by the new drive.Cevap
- BThe drive was not recognized because standard 260-pin SO-DIMM modules must be installed into secondary storage slots to enable high-speed data transfer.
- CThe secondary M.2 storage controller cannot operate until a dedicated CCFL fluorescent backlight inverter board is connected to supply auxiliary high-voltage power.
- DThe laptop's smart battery system has disabled secondary storage slots until a deep discharge calibration cycle is completed.
Cevap
The secondary M.2 slot only supports the SATA bus protocol, which is incompatible with the PCIe/NVMe protocol used by the new drive.
The correct answer correctly identifies that M.2 slots are hardwired to specific bus interfaces. Although an M.2 drive may fit or be adapted into a slot, a slot wired only for SATA signals lacks the PCIe lanes necessary for an NVMe controller to communicate with the motherboard.
Adım Adım Çözüm
Anahtar Kavram
M.2 Interface Protocols and Form Factor Keying
Tahmini Süre:1m 30s