SUPER MICRO Computer I2DMR-8G2 - Manual (Page 59)

Chapter 4: AMI BIOS
4-11
4-4 PCI/PnP Configuration
PCI Latency Timer
This option sets the latency of all PCI devices on the PCI bus. The default
setting is "64." Select "32" to set the PCI latency to 32 PCI clock cycles.
Select "64" to set the PCI latency to 64 PCI clock cycles. Select "96" to set
the PCI latency to 96 PCI clock cycles. Select "128" to set the PCI latency to
128 PCI clock cycles. Select "160" to set the PCI latency to 160 PCI clock
cycles. Select "192" to set the PCI latency to 192 PCI clock cycles. Select
"224" to set the PCI latency to 224 PCI clock cycles. Select "248" to set the
PCI latency to 248 PCI clock cycles.
Allocate IRQ to PCI VGA
Set this value to allow or restrict the system from giving the VGA adapter
card an interrupt address. The options are "Yes" and "No".
PCI IDE BusMaster
Set this value to allow or prevent the use of PCI IDE busmastering. Select
"Enabled" to allow the BIOS to use PCI busmaster for reading and writing to
IDE drives. The options are "Disabled" and "Enabled".
PCI Slot1 Option ROM
Select "Enabled" to enable the function of PCI Slot1 Option ROM. The
options are "Disabled" and "Enabled".
This feature allows the user to set PCI/PnP configurations: