Chapter
4:
UEFI
BIOS
CPU
SLOT
5
PCI-E
4.0
X16
OPROM
This
setting
enables
or
disables
the
listed
PCI/PCIX/PCIe
Slot
OPROM
option.
The
options
include
Disabled,
Legacy
and
EFI.
CPU
SLOT
6
PCI-E
4.0
X16
OPROM
This
setting
enables
or
disables
the
listed
PCI/PCIX/PCIe
Slot
OPROM
option.
The
options
include
Disabled,
Legacy
and
EFI.
CPU
SLOT
7
PCI-E
4.0
X16
OPROM
This
setting
enables
or
disables
the
listed
PCI/PCIX/PCIe
Slot
OPROM
option.
The
options
are
Disabled,
Legacy
and
EFI.
PCI-E
M.2-M1
OPROM
This
setting
enables
or
disables
the
listed
PCI-E
M.2-M1
option.
The
options
are
Disabled,
Legacy
and
EFI.
PCI-E
M.2-M2
OPROM
This
setting
enables
or
disables
the
listed
PCI-E
M.2-M2
option.
The
options
are
Disabled,
Legacy
and
EFI.
Onboard
LAN1
Option
ROM
Use
this
setting
to
select
which
option
ROM
is
to
be
loaded
for
onboard
LAN1
on
the
system.
The
options
include
Disabled,
Legacy
and
EFI
.
Onboard
LAN2
Option
ROM
Use
this
setting
to
select
which
firmware
function
is
to
be
loaded
for
onboard
LAN2
on
the
system.
The
options
include
Disabled
and
PXE.
Onboard
Video
Option
ROM
Select
Legacy
to
boot
the
system
using
a
legacy
video
device
installed
on
the
motherboard.
The
options
include
Disabled,
Legacy
and
EFI.
CPU
SLOT1
PCI-E
4.0
X16
Bifurcation
This
setting
selects
the
bifurcation
configuration
for
this
particular
PCI-E
slot.
The
options
include
Auto
,
x16,
x8x8,
x4x4x8,
and
x4x4x4x4.
CPU
SLOT2
PCI-E
4.0
X8
Bifurcation
This
setting
selects
the
bifurcation
configuration
for
this
particular
PCI-E
slot.
The
options
include
Auto
,
and
x4x4.
CPU
SLOT3
PCI-E
4.0
X16
Bifurcation
This
setting
selects
the
bifurcation
configuration
for
this
particular
PCI-E
slot.
The
options
include
Auto
,
x16,
x8x8,
x4x4x8,
and
x4x4x4x4.
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