Abit KG7, User Manual

Page: 43 / 104

Introducing the BIOS
User’s Manual
3-15
Control CPU P/N value:
Two options are available: Auto or Manual. The default setting is Auto . If you choose “Manual”, the
following three items will available for you to set. It is recommended this field be set to Auto in order to
avoid any errors in your system.
"
SlewRate Control:
Eight options are available: 0 (Slowest)
)
1
)
2
)
3 (Default)
)
4
)
5
)
6
)
7 (Fastest). The
default setting is 3 (Default) . This item lets you control the slew rate for AMD Athlon system bus.
"
Bypass Values P Driver:
This item allows you to adjust the Bypass Values P Driver. You can key in the HEX number into this
section. The minimum number is 0000, and maximum number is 000F. The default setting is
09 .
Bypass strength values for the P driver, the P values are active low.
"
Bypass Values N Driver:
This item allows you to adjust the Bypass Values N Driver. You can key in the HEX number into this
section. The minimum number is 0000, and maximum number is 000F. The default setting is
07 .
Bypass strength values for the N driver, the N values are active high.
AGP Driving Control:
Two options are available: Auto or Manual. The default setting is Auto . This allows the AGP driving
value to be automatically set according to your display card. When you choose “Manual” the following
six items will available to set by yourself. It is recommended this field be set at Auto in order to avoid any
errors in your system.
"
Driving Strength:
This item allows you to adjust the AGP driving strength. You can key in the HEX number into this
section. The minimum number is 0000, and maximum number is 00FF. The default setting is
D8.
"
Driving SlewRate (Rise):
Four options are available: Slowest
)
Slow
)
Fast
)
Fastest. The default setting is Slow . This item
is used to directly program the rise time in all AGP signals except the data strobes.
"
Driving SlewRate (Fall):
Four options are available: Slowest
)
Slow
)
Fast
)
Fastest. The default setting is Slowest . This
item is used to directly program the fall time in all AGP signals except the data strobes.
"
Data Strength Strobes:
You can key in the HEX number into this section. The minimum number is 0000, and maximum
number is 00FF. The default setting is
FF. This item is used to directly program the transistor drive
strength on all AGP data strobes, a value of 0000 is the weakest, and 00FF is the strongest.
"
DataStrobe SlewRate (Rise):
Four options are available: Slowest
)
Slow
)
Fast
)
Fastest. The default setting is Fastest . This
item is used to directly program the rise time in all AGP data strobes.