To get ASM1083 working on Windows 7: identify the hardware ID, obtain the correct Windows 7 (x86/x64) driver from your board/vendor (or ASMedia), install via Device Manager or INF, and follow the troubleshooting steps above for common issues. Replacing hardware may be necessary if drivers and slots are ruled out.
Often requires a 4-pin Molex connection for power-hungry PCI cards (>10W). Does it Need a Driver? asmedia asm1083 driver windows 7