SSDs have no interrupts. SATA/RAID/NVMe controllers have. Consumer grade SATA/RAID controllers do not use MSI-X, only NVMe controllers do. Modding inf-file and changing registry values give the same results because you mod same registry values in inf-files. To see whether device uses multiple interrupts you check the number of IRQs shown in MSI tool or in Device Manager. If device has one IRQ then the limit value has no meaning.