Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.
Work through these checks
0 of 4 complete01Reset BIOS to defaults by shorting CMOS pins
- Reset BIOS to defaults by shorting CMOS pins
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
02Use a single RAM stick in slot A2 to bypass boot check
- Use a single RAM stick in slot A2 to bypass boot check
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
03Update motherboard BIOS using Flashback button
- Update motherboard BIOS using Flashback button
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
04Loosen CPU cooler screws slightly and reseat CPU
- Loosen CPU cooler screws slightly and reseat CPU
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
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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