Memory card slot 1 not working : rps2

In this video, I take a look at a PS2 memory card which is not detected by the PS2 console

Even when a PS1 game is running, it'll say the slot is empty when I try to save moving on to the most important detail now I take the

ps2 slot 16 or 32 mb card in Slot 1: play an early PS2 game, that only supports 8 mb memory cards They will not recognize anything higher, such as a

crown 99 slot I usually have fmcb in memory card slot 2 If I have MX4SIO in memory card slot 1 my controller won't work, is MX4SIO taking too much power