TYAN Toledo i965R (S5180AG2N) Manual page 39

Table of Contents

Advertisement

CPU Features
Press [Enter] to access advanced features of the CPU.
Phoenix – AwardBIOS CMOS Setup Utility
CPU Feature
Thermal Management
X TM2 Bus Ratio
X TM2 Bus VID
Limit CPUID MaxVal
C1E Function
Execute Disable Bit
Virtualization Technology
↑↓←→: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults
Thermal Management:
Thermal Management throttles the processor back as it reaches its maximum operating
temperature. Throttling reduces the number of processing cycles, thereby diminishing the heat
dissipation of the CPU. This cools the unit. Once the CPU has reached a safe operating
temperature, thermal throttling is automatically disabled, and normal full speed processing
begins again.
The BIOS supports two types of thermal management.
Thermal Monitor 1:
temperature sensing circuit in the CPU that has the ability to act quickly
upon any thermal issues (~50ns). This circuitry keeps an eye on the most
taxed areas of the CPU-die at all times and will quickly act upon
temperatures going over the safety limits. The thermal monitor's control
circuit, when active, lowers the CPU temperature by throttling the internal
CPU clock speed. This is done with a 50% duty-cycle, which means that a
2GHz CPU will then effectively run at a 1GHz clock speed. Due to the fast
response time of the thermal monitor circuit (~50ns) the CPU will only be
'throttled' for a very brief period. Once the CPU-die temperature is within
safe operating limits again it'll set back to the 2GHz clock speed it
originally operated at.
Thermal Monitor 2:
clock and core voltage according to the CPU load. This information is read
from the five VID pins of the CPU. Accordingly, the CPU temperature is
also automatically decreased, when the core voltage is decreased. This
[Thermal Monitor 1]
14x
1.3500V
[Disabled]
[Auto]
[Enabled]
[Enabled]
Thermal Monitor 1 uses a highly accurate on-die
Thermal Monitor 2 decreases or increases the CPU
39
http://www.tyan.com
Item Help
________________________
Menu Level ►
Thermal Monitor 1 (On die
throtting)
Thermal Monitor 2 (Ratio &
VID transition)

Advertisement

Table of Contents
loading

This manual is also suitable for:

Toledo i965rS5180ag2n

Table of Contents