SSD installed in DVD writer location or SSD installed in previous HDD location used in booting will have booting time difference?

Solution 1:

You will have to look up the connection type as mentioned in a comment by Mokubai.

In case of a desktop computer compare your drive wiring to the content of a motherboard manual which might not be provided by your desktop computer manufacturer. Then simply search for the manual on the internet. In order to learn the maker and model of your motherboard, either run msinfo32.exe from a windows command prompt or search for a label printed on your motherboard.

If you want to avoid opening your laptop so far as to be able to search for model markings on the motherboard you might rather search for tests of your laptop model.