Chapter 2
8
CPU Frequency
If you incorrectly set the CPU's parameters such that the computer is not able to boot,
BIOS will automatically change the CPU's configuration to a default setting of either
83 or 110 MHz and your computer will automatically boot up at this setting. Note
that this is the same default frequency at which your system boots when you change
CPUs. Check the BIOS identification screen during bootup to verify the correct CPU
frequency. If it is not correct, you can immediately press the Delete key and go back
into the CPU and Chipset menu to reset the CPU parameters.
Overclocking
Operating a CPU at a higher frequency than it's specification allows is called overclocking.
If the CPU frequency is set at a higher frequency than it's specification allows, it may
or may not run at that freqency, depending on the quality of your CPU and the extent
to which the the frequency has been overset. The mainboard manufacturer highly
discourages overclocking as it may result in data loss, CPU burn-out, system failure,
etc.
CPU Voltage
There are two major processor types in general use. Single-voltage processors such as
Pentium, AMD-K5, and Cyrix 6x86 processors use a single voltage value for both core
and I/O voltage settings. When you set the core voltage value to 3.3 or 3.5v, both core
and I/O voltage settings are set to this value. Dual-voltage processors such as
Pentium processors with MMX technology, AMD-K6 and Cyrix 6x86L processors use
a dual voltage value for core and I/O voltage settings. When you choose 2.8, 2.9, or
3.2v for a core voltage value, the system sets this value for the core setting and sets 3.3v
for the I/O setting.
ROM PCI / ISA BIOS (2A59IC3E)
CPU & CHIPSET SETUP
AWARD SOFTWARE, INC.
AUTO Configuration
: Enabled
DRAM Timing
: 70ns
DRAM Leadoff Timing
: 10/6/4
DRAM Read Burst (EDO/FP)
: x333/x444
DRAM Write Burst Timing
: x333
Fast EDO Lead Off
: Disabled
Refresh RAS# Assertion
: 5 Clks
Fast RAS To CAS Delay
: 3
DRAM Page Idle Timer
: 2 Clks
DRAM Enhanced Paging
: Enabled
Fast MA to RAS# Delay
: 2 Clks
SDRAM (CAS Lat/RAS-to-CAS) : 3/3
SDRAM Speculative Read
: Disabled
System BIOS Cacheable
: Disabled
Video BIOS Cacheable
: Disabled
8 Bit I/O Recovery Time
: 1
16 Bit I/O Recovery Time
: 1
Memory Hole At 15M-16M
: Disabled
Specific PCI 2.1 Transfer
: Disabled
Spectrum Spread
: Disabled
Flash BIOS Protection
: Disabled
Hardware Reset Protect
: Disabled
****CPU Setup *****
CPU Type
: AMD K5
User's favorite
: Enabled
V c o r e
: 3.3V
CPU Bus Frequency
: 50MHz
Frequency Ratio
: x2.5
ESC: Quit
F1
: Help
F5
: Old Values
F7
: Load Setup Defaults
:Select Item
P U / P D / + / - : Modify
(Shift) F2
: Color
Figure 2-6
