NOOOO!!!!!
That second card is an Ethernet Card for Coaxial and AUI Cables!
OK. Lets hope there is no damage to the card(s) or the monitor. Pull out the cards and put them to the side. Test the monitor on the IIsi and make sure it works.
What kind of monitor is is? If it's the 12in color monitor it might not work as they were meant to be 512X84 resolution, which were used on many IIsi and Mac LCs. You would need the Mac 13in RGB Color Monitor which handles 640X480 resolution. A Multi-sync monitor can display it if you got the right Mac-VGA adapter.
Note: The IIsi can also display on the 13in color monitor with 640X480 resolution, as can the LC but the color depth will be reduced. But the Mac II cards have issues working on the tiny 12in color monitor made by apple (which was also used on the IIgs and some IIc's).
That second card is an Ethernet Card for Coaxial and AUI Cables!
OK. Lets hope there is no damage to the card(s) or the monitor. Pull out the cards and put them to the side. Test the monitor on the IIsi and make sure it works.
What kind of monitor is is? If it's the 12in color monitor it might not work as they were meant to be 512X84 resolution, which were used on many IIsi and Mac LCs. You would need the Mac 13in RGB Color Monitor which handles 640X480 resolution. A Multi-sync monitor can display it if you got the right Mac-VGA adapter.
Note: The IIsi can also display on the 13in color monitor with 640X480 resolution, as can the LC but the color depth will be reduced. But the Mac II cards have issues working on the tiny 12in color monitor made by apple (which was also used on the IIgs and some IIc's).