In that case both should run at 1333Mhz. Just to make it easier, put slower RAM in first slot(s), it makes it easier for BIOS to set it right. Speaking of BIOS, always reset it when changing RAM.
In that case both should run at 1333Mhz. Just to make it easier, put slower RAM in first slot(s), it makes it easier for BIOS to set it right. Speaking of BIOS, always reset it when changing RAM.