I accidentally bought a RAM of 1886mhz for my motherboard which runs on 1333mhz

Solution
1) If your PC is the OEM type, you are better to exchange the RAM.
2) For retail brand, you may try boot into the BIOS, set up the XMP ( for intel) or AMP ( for AMD).
3) If you can't boot into the BIOS at all, you have to return the RAM, nothing you can do, to get the 1333mhz one.
1) If your PC is the OEM type, you are better to exchange the RAM.
2) For retail brand, you may try boot into the BIOS, set up the XMP ( for intel) or AMP ( for AMD).
3) If you can't boot into the BIOS at all, you have to return the RAM, nothing you can do, to get the 1333mhz one.
 
Solution