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 4 complete01Reset BIOS to defaults by shorting CMOS pins
Reset BIOS to defaults by shorting CMOS pins.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
02Use a single RAM stick in slot A2 to bypass boot check
Use a single RAM stick in slot A2 to bypass boot check.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
03Update motherboard BIOS using Flashback button
Update motherboard BIOS using Flashback button.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
04Loosen CPU cooler screws slightly and reseat CPU
Loosen CPU cooler screws slightly and reseat CPU.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
Possible causes
- Incompatible RAM specifications or speed profiles
- Incorrect memory voltage parameters in BIOS NVRAM
- Bent CPU socket pins (uneven memory channel contact)
- Uneven CPU cooler mounting pressure (warped board)
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