Asus P5K Deluxe Transaction Booster


Next feature to look in bios is Transaction Booster. This function seems to boost memtest86+ v1.70 reported memory bandwidth. By default Transaction Booster is set to AUTO, but when Enabled or Disabled a sub menu appears in the form of levels. When enabled, Transaction Booster gives you an option to select 2 Boost levels of 0 or 1. When disabled, Transaction Booster gives you an option to select 3 different Relaxed levels between 0-3 - level 0 at least looks the same as AUTO set Transaction Booster in memtest86+ v1.70 bandwidth.




Using 9x400FSB 1:1 4-4-4-4 settings below:

JumperFree Configuration Settings
AI Overclocking: Manual
CPU Ratio Control: Manual
- Ratio CMOS Setting: 9
FSB Frequency: 400
PCI-E Frequency: 102
DRAM Frequency: DDR2-800
DRAM Timing Control: Manual
CAS# Latency: 4
RAS# to CAS# Delay: 4
RAS# Precharge: 4
RAS# Activate to Precharge: 4
TWR: 3
TRFC: 30
TWTR: 3
TRRD: 3
TRTP: 3
DRAM Static Read Control: Disabled

Transaction Booster: AUTO or Disabled Relax 0 or Enabled Boost 1
Clock Over-Charging Mode: AUTO

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

CPU Voltage: 1.4375
CPU Voltage Reference: AUTO
CPU Voltage Damper: Enabled
CPU PLL Voltage: 1.50
DRAM Voltage: 2.10
FSB Termination Voltage: 1.30
North Bridge Voltage: 1.40
North Bridge Voltage Reference: AUTO
South Bridge Voltage: AUTO

Advance CPU Settings
CPU Ratio Control: Manual
- Ratio CMOS Setting: 9
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
PECI: Enabled

USB Configuration
USB Functions: Enabled
Legacy USB Support: Disabled (need to enable it to detect USB flash drives)
Transaction Booster Disabled - Relax level 0



Transaction Booster Enabled - Boost level 1




Now how Transaction Booster AUTO vs Enabled Boost level 1 compare for Super Pi 32M

AUTO set = 14m 53.813s


Enabled Boost Level 1 set = 14m 45.531s


Transaction Booster Enabled Level 1 is 0.915% or 8.182 seconds faster than when set to AUTO!