Specifications
AWARD BIOS
3-13
Chipset Features à 8 Bit I/O Recovery Time
8 Bit I/O Recovery
Time
1
2
3
4
5
6
7
8
NA
For some old I/O chips, after the execution of an I/O
command,  the  device  requires a  certain amount  of
time (recovery time) before the execution of the next
I/O command. Because of new generation CPU and
mainboard chipset,  the assertion  of  I/O command  is
faster,  and  sometimes  shorter  than  specified  I/O
recovery  time  of  old  I/O  devices.  This  item  lets  you
specify  the  delay  of  8-bit  I/O  command  by  count  of
ISA bus clock. If you find any unstable 8-bit I/O card,
you may try to  extend  the  I/O recovery time  via  this
item. The BIOS default value is 4 ISA clock. If set to
NA, the chipset will insert 3.5 system clocks.
Chipset Features à 16 Bit I/O Recovery Time
16 Bit I/O Recovery
Time
1
2
3
4
NA
The same as 16-bit I/O recovery time.  This item lets
you specify the recovery time for the execution of 16-
bit I/O commands by count of ISA bus clock.  If you
find any of the installed 16-bit I/O cards unstable, try
extending  the  I/O  recovery  time  via  this  item.  The
BIOS default value is 1 ISA clocks.  If set to NA, the
chipset will automatically insert 3.5 system clocks.
Chipset Features à Memory Hole At 15M-16M
Memory Hole At
15M-16M
Enabled
Disabled
This option lets you reserve system memory area for
special ISA  cards.  The  chipset  accesses  code/data
of these areas  from  the  ISA  bus directly.  Normally,
these areas are reserved for memory mapped I/O
card.
Chipset Features à Passive Release
Passive Release
Enabled
Disabled
This  item  lets  you  control  the  Passive  Release
function  of  the  PIIX4E  chipset  (Intel  PCI  to  ISA
bridge). This function is used to meet latency of ISA
bus  master.  Try  to  enable or  disable  it,  if  you  have
ISA card compatibility problem.










