It was kind of a joke. Don't take it too seriously. Maybe try downloading the the newest version of CPU-Z or try another version. Don't download the BETA version because it might have some bugs.
ANYways, if you set the the timing manually in BIOS, the timing will be the ones that you set. If you want to be 100% sure, make sure the vdimm is set to the one specified on the manual which would most likely be 2.1v. Some ram can't operate at 800mhz without changing the vdimm to 2.1v.