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W520 - can't enter BIOS and boot menu after motherboard upgrade when SSD is connected - Thinkpads Forum
System will display a black screen and cannot enter operating system after disabling the optical drive in BIOS - ThinkPad E570 - Lenovo Support LU
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Can-t-boot-into-BIOS-setup-UEFI-firmware-settings-through-F2-or-Novo-button-menu - English Community - LENOVO COMMUNITY
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