A bit of information on Static Read Control and Transaction Booster. I did a real quick check of the memory performance number in memtest86+ with these. I won't list all my bios settings, as the absolute value of the result doesn't matter, just the trend.

4669-Static Read Control set to Auto or Enabled and Transaction Booster set to Auto ( same as disabled and level 0 I think)

4511-Static Read Control set to Disabled, Transaction Booster Enabled and level 1

4369-Static Read Control set to Disabled, Transactions Booster Auto

noboot-Static Read Control set to Auto or Enabled and Transaction Booster Enabled and level 1