AWARD BIOS 3-11
Reset Configuration Data:
The default value is Disabled.
Disabled:
Normal Setting.
Enabled :
If you had plugged some Legacuy cards in the system and they were
recorded into ESCD(Extended System Configuration Data), you can set this
field to Enabled to clear ESCD.
PCI IDE IRQ Map To:
The default value is PCI-AUTO
When you have true PCI card(s) plugged into the system, you will not need
to change any thing here in the
SETUP
program. However, if you do not
know whether you have true PCI card or not, please refer to your PCI card
user's manual for the details.
When you have a Legacy card (describbed in section 2-6) to be plugged
into the system,a proper setting is extremely important or it may cause the
system hang. The diagram shown below tells you how the Rotating
Priority Mechanism is designed.
INTA
INTD
PCI#1
PCI#2
PCI#3
INTA
INTD
INTD
INTC
INTB
INTC
INTB
INTB
INTA
INTD
INTC
INTC
INTB
INTA
PCI#4
INTA
INTB
INTC
INTD
Figure 3-7 The Combination of PCI INT# lines
Used MEM base addr and Used MEM Length : The default value is N/A.
The Used MEM base addr (CB00, CC00, D000, D400, D800,
DC00)and Used MEM Length (8K, 16K, 32K, 64K)were to support some
specific ISA Legacy cards with requested memory space below 1M
address. Now with these two functions, users can define where the used
memory address is located and its length of the legacy area that is wsed
by the legacy device to avoid the memory space confilict. For example, if
users select "D000" for "Used MEM base addr" and "16K" for "Used
MEM Length," that means the address region D0000H-D3FFFH is
occupied by ISA legacy cards, and thus BIOS will not assign this region
for PnP/ISA and PCI cards.
PCI
Chipset
SB82371SB