Asus P I-P55T2P4 User Manual - Page 49

IV. BIOS SOFTWARE DMA x Used By ISA These fields indicate whether or not the displayed DMA channel for each field is being used by a legacy (non-PnP) ISA card. Available options include: No/ICU and Yes. The first option, the default setting, indicates either that the displayed DMA channel is not used or an ICU is being used to determine if an ISA card is using that channel. If you install a legacy ISA card that requires a unique DMA channel, and you are not using an ICU, you must set the field for that channel to Yes. ISA MEM Block BASE This field allows you to set the base address and block size of a legacy ISA card that uses any memory segment within the C800H and DFFFH address range. If you have such a card, and you are not using an ICU to specify its address range, select a base address from the six available options; the ISA MEM Block SIZE field will then appear for selecting the block size. If you have more than one legacy ISA card in your system that requires to use this address range, you can increase the block size to either 8K, 16K, 36K, or 64K. If you are using an ICU to accomplish this task, leave ISA MEM Block BASE to its default setting of No/ICU. SYMBIOS SCSI BIOS The default uses Auto settings for the onboard SCSI BIOS. If you do not want to use the onboard SCSI BIOS, choose Disabled USB Function This motherboard supports Universal Serial Bus (USB) devices but current operating systems do not. The default is set to Disabled until support disks and USB devices are available in which time you can set this function to Enabled. IV. BIOS (Plug & Play / PCI) (Power Management) ASUS P/I-P55T2P4 User's Manual 43