Resource Controlled By

Common Options : Auto, Manual

Quick Review

This BIOS feature determines if the BIOS should automatically configure IRQ and DMA resources.

The BIOS is generally capable of automatically configuring IRQ and DMA resources for the devices in your computer. Therefore, it is advisable that you set this feature to Auto.

However, if the BIOS has problems assigning the resources properly, you can select the Manual option to reveal the IRQ and DMA assignment fields. You can then assign each IRQ or DMA channel to either Legacy ISA or PCI/ISA PnP devices.

Legacy ISA devices are compliant with the original PC AT bus specification and require a specific interrupt and/or DMA channel to function properly. PCI/ISA PnP devices, on the other hand, adhere to the Plug and Play standard and can use any interrupt or DMA channel.