Feature Options: ON (default) / OFF / Custom
Upon selecting CUSTOM option - 3 options that have no submenus appear (the details listed below are hidden). These options only have two modes ON or OFF. Selecting ON selects ALL functions in that mode.
CPU (ON / OFF)
CPU (ON default /OFF) XpressRoute (ON default/OFF) MemBoost (ON default/OFF)
XpressRoute (ON / OFF)
Function 1: To Maximize CPU performance Detail: Change CPU ClkDivisor to "Divide-by-1" mode Limitation: For Phenom (K10) CPU only
MemBoost (ON / OFF)
Function 1: To accelerate transfers of data to and from graphics Detail: Increase PCIE clock for Graphic cards with certain device ids. Internal qualification has been done on R600 and R580+ cards and has shown stability at 150Mhz-160Mhz on the PCIE bus (Gen1). Corner lot testing has shown that 125Mhz should be the recommended default to cover worst case scenarios. Limitation: For RD780 and RD790 only.
Function 2: To accelerate transfers of data b/w graphics (most notably in SW CrossFire) Detail: Enable BIOS setting to allow P2P transfers Limitation: For RD780 and RD790 only Function 3: To maximize transfer bandwidth of graphics data with a HT1 CPU Detail: Enable BIOS setting to double pump graphics data across HyperTransport Limitation: For RD780 and RD790 only. For HT1 CPUs only (disable for HT3 CPUs)
Function 1: To accelerate memory bandwidth performance with DDR2-800 or higher DIMMs with K8 CPUs Detail: Alter memory timings for DDR2-800 or higher DIMMs Limitation: For RD780 and RD790 only. For DDR2-800 or higher DIMMS. For K8 CPUs only.
Fine tuning adjustments: Trc, reduce by 2
Twr, reduce by 2
Trrd, reduce by 1
Tref, 7.8us instead of 3.9us
Twtr, reduce by 1
Queue Bypass Max. increase to 7
Function 2: Disable DRAM PowerDown mode Detail: Change register to 0 Limitation: For RD780 and RD790 only.
Function 3: Read Enthusiast DIMMs with multiple SPDs Detail: Read Performance SPD that gives maximum performance Limitation: For RD790 only.
Information on the performance gains will follow soon.