BIOS / UEFI

After replacing a motherboard, a technician installs Windows but the system will not boot from the SSD. The drive is detected in UEFI. The technician recalls the previous motherboard used Legacy BIOS. What is the most likely issue?

A customer complains that their computer takes a very long time to boot and sometimes shows a 'CMOS Checksum Error' before starting. What is the most likely hardware issue?

After updating the firmware on a workstation, the system fails to boot and displays a 'Boot Device Not Found' error. The hard drive is detected in UEFI settings. What is the most likely cause?

A technician is tasked with enabling hardware-level virtualization on a desktop to run a virtual machine. Which UEFI setting must be enabled?

During a routine hardware upgrade, a technician installs a new graphics card. The system powers on but no display appears. The old card works fine. What UEFI setting should be checked first?

A technician upgrades a workstation from Windows 10 to Windows 11, but the installation fails with an error that the system does not support TPM 2.0. The CPU is compatible. What must the technician do in UEFI to resolve this?

A technician is troubleshooting a server that randomly resets the time and date to 2000 after being powered off for a few hours. The system otherwise boots and runs normally. Which component is most likely failing?

A technician needs to boot a laptop from a USB drive to run a diagnostic tool. The USB is plugged in but the system skips it and boots from the internal SSD. Which UEFI setting is most likely preventing the USB boot?

A technician is configuring a new workstation for a secure environment. The policy requires that only signed operating systems can boot. Which UEFI feature should be enabled?

A user reports that their new SSD is not recognized by the system. The drive is properly connected and powered. Which UEFI setting should be checked to ensure the drive is detected?

A user wants to boot their laptop from a USB flash drive to run a diagnostic tool. They have already inserted the USB drive and restarted the system. What is the most efficient way to temporarily change the boot order to boot from the USB drive?

A technician is installing a new M.2 NVMe SSD in a desktop computer. After installation, the drive is not listed in the operating system's disk management tool, but it appears in the UEFI firmware interface. What should the technician do first?

A technician is building a new PC for a graphic designer who needs to run Windows 11. The technician installs a 2 TB NVMe SSD and 32 GB of RAM. During Windows installation, the installer reports that the drive cannot be used because it uses the MBR partition table. What UEFI setting or action should the technician change?

A company is migrating its fleet of 100 desktops from Windows 10 to Windows 11. The IT department needs to enable TPM 2.0 and Secure Boot on each system via the UEFI. Some older systems have TPM disabled by default. Which UEFI setting must be changed to enable TPM?

A technician is deploying a new server that requires RAID 10 for data redundancy and performance. The motherboard has an onboard RAID controller. After configuring the RAID array in the UEFI RAID utility, the technician installs the OS, but the RAID volume is not visible in the OS installer. What is the most likely cause?

A technician is troubleshooting a desktop that beeps three times repeatedly and shows a blank screen upon power-on. The system has a discrete GPU installed and two sticks of RAM. What is the most likely cause indicated by the beep code?

A customer reports that their new desktop PC runs for exactly 30 minutes and then shuts down. After the shutdown, the system won't power back on for several minutes. What is the most likely BIOS/UEFI-related cause of this behavior?

During a system boot, a user sees an error message: 'CMOS checksum error - Defaults loaded.' The system then boots normally but loses the date and time settings after power-off. What is the most likely hardware failure?

A technician is tasked with securing a workstation that will be used in a public kiosk. The requirement is that the system must only boot from the internal SSD and must prevent booting from USB drives or optical media. Which UEFI security feature should be configured?

A technician is configuring a new workstation and needs to ensure the system can address more than 4 GB of RAM. The motherboard supports 16 GB of DDR4 memory. Which UEFI setting must be verified to ensure the OS can use all installed memory?

A user complains that their computer boots slowly and shows a 'Press F1 to continue' message every time. The firmware settings appear to have lost their configuration. What is the most likely cause?

A customer reports that their new NVMe SSD is not detected by the system, even though it is properly seated. The motherboard supports both UEFI and legacy BIOS. Which firmware setting should be enabled to ensure the NVMe drive is recognized?

A user reports that their computer suddenly cannot find the boot device, and the BIOS shows the SATA mode is set to 'IDE' instead of 'AHCI'. The drive was previously working. What is the most likely cause?

A technician is tasked with enabling virtualization on a desktop to run a hypervisor. After enabling the feature in the OS, the hypervisor still reports that virtualization is disabled. What should be checked in the firmware?

During a BIOS update on a workstation, the power is interrupted, and now the system fails to POST. The motherboard has a backup BIOS chip. What is the most efficient way to recover the system?

A technician is configuring a new server and needs to ensure that only signed operating system bootloaders can be loaded. Which UEFI feature should be enabled?

After replacing a CPU in a desktop, the system powers on but shows a black screen with no POST. The old CPU worked fine. Which BIOS-related step should be taken first?

A customer reports that their computer beeps three times, pauses, then repeats, and nothing is displayed on the screen. What does this POST code typically indicate?

A technician needs to install Windows 10 on a new PC with a 2 TB hard drive. The motherboard supports UEFI with GPT. Which partition scheme and boot mode should be used to support the full drive capacity?

A technician is upgrading a workstation from a 500 GB HDD to a 1 TB SSD. After installing the SSD, the system boots into the old OS from the HDD instead of the new SSD. The boot order in UEFI shows only the HDD. What is the most likely reason?