BIOS & startup · critical

How to fixBIOS-ROM-ERR

BIOS ROM checksum error

What this error means

BIOS ROM checksum error ranks as a critical-severity hardware BIOS/UEFI issue in our database. The BIOS ROM memory is corrupted or unreadable. It sometimes comes down to defective EEPROM chip. Work through the steps below in order.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 2 complete
01Use hardware programmer to reflash

Use hardware programmer to reflash.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Replace motherboard

Replace motherboard.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Failed BIOS flash
  • Defective EEPROM chip