Sergio, if you looking for the lowest volts maybe this will help you out. These are my 24/7 settings, 10+ hours blend stable, and are just about as low as they go for me.

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******Motherboard Intelligent Tweaker (M.I.T.)******
 
Robust Graphics Booster.........................[ Auto     ]
CPU Clock Ratio.................................[ 9        ]
Fine CPU Clock Ratio............................[ + 0.0    ]
CPU Frequency 4.3GHz............................[ 482 x 9.0]
 
******Clock Chip Control******
 
CPU Host Clock Control..........................[ Enabled  ]
CPU Host Frequency (Mhz)........................[ 482      ]
PCI Express Frequency (Mhz).....................[ 100      ]
C.I.A 2.........................................[ Disabled ]
 
******Advanced Clock Control******
 
CPU Clock Drive.................................[ 800mv   ]
PCI Express Clock Drive.........................[ 900mv   ]
CPU Clock Skew..................................[ 0ps     ]
MCH Clock Skew..................................[ 0ps     ]
 
******DRAM Performance Control******
 
Performance Enhance.............................[ Standard ]
(G) MCH Frequency Latch.........................[ 333      ]
System Memory Multipler.........................[ 2.40B    ]
Memory Frequency 1066...........................[ 1157     ]
DRAM Timing Selectable..........................[ Manual   ]
 
CAS Latency Time................................[ 5       ]
tRCD............................................[ 6       ]
tRP.............................................[ 5       ]
tRAS............................................[ 15      ]
 
******Advanced Timing Control******
 
tRRD[3].........................................[ 3       ]
tWTR[3].........................................[ 3       ]
tWR[6]..........................................[ 6       ]
tRFC[54]........................................[ 54      ]
tRTP[3].........................................[ 3       ]
Command Rate (cmd)[0]...........................[ 2T      ]
 
******Channel A Timing Settings******     
 
Static tRead Value        [ 8 ] ................[ 8       ]
tRD Phase0 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase1 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase2 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase3 Adjustment     [ 0 ] ................[ Auto    ]
 
tRD 2rd (Differnt Rank)   [ 6 ] ................[ Auto    ]
tWR 2wr (Differnt Rank)   [ 6 ] ................[ Auto    ]
tWR 2rd (Differnt Rank)   [ 5 ] ................[ Auto    ]
tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto    ]
 
Dimm 1 Clock Skew Control.......................[ Auto    ]
Dimm 2 Clock Skew Control.......................[ Auto    ]
DDR Write Training..............................[ Auto    ]
 
******Channel A Driving Settings****** 
 
Drive Strength Profile..........................[ 1200    ]
Data Driving Pull Up Level......................[ Auto    ]
cmd Driving Pull Up Level.......................[ Auto    ]
ctrl Driving Pull Up Level......................[ Auto    ]
clk Driving Pull Up Level.......................[ Auto    ]
 
Data Driving Pull Down Level....................[ Auto    ]
cmd Driving Pull Down Level.....................[ Auto    ]
ctrl Driving Pull Down Level....................[ Auto    ]
clk Driving Pull Down Level.....................[ Auto    ]
 
******Channel B Timing Settings******     
 
Static tRead Value        [ 8 ] ................[ 8       ]
tRD Phase0 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase1 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase2 Adjustment     [ 0 ] ................[ Auto    ]
tRD Phase3 Adjustment     [ 0 ] ................[ Auto    ]
 
tRD 2rd (Differnt Rank)   [ 6 ] ................[ Auto    ]
tWR 2wr (Differnt Rank)   [ 6 ] ................[ Auto    ]
tWR 2rd (Differnt Rank)   [ 5 ] ................[ Auto    ]
tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto    ]
 
Dimm 1 Clock Skew Control.......................[ Auto    ]
Dimm 2 Clock Skew Control.......................[ Auto    ]
DDR Write Training..............................[ Auto    ]
 
******Channel B Driving Settings****** 
 
Drive Strength Profile..........................[ 1200    ]
Data Driving Pull Up Level......................[ Auto    ]
cmd Driving Pull Up Level.......................[ Auto    ]
ctrl Driving Pull Up Level......................[ Auto    ]
clk Driving Pull Up Level.......................[ Auto    ]
 
Data Driving Pull Down Level....................[ Auto    ]
cmd Driving Pull Down Level.....................[ Auto    ]
ctrl Driving Pull Down Level....................[ Auto    ]
clk Driving Pull Down Level.....................[ Auto    ]
 
******Motherboard Voltage Control******
 
Load-Line Calibration...........................[ Enabled ]
CPU Vcore         [ 1.15 ]......................[ 1.36875 ]
CPU Termination   [ 1.20    ]...................[ 1.280   ]
CPU PLL           [ 1.50    ]...................[ 1.500   ]
CPU Reference     [ 0.760   ]...................[ 0.835   ]
 
MCH Core          [ 1.100   ]...................[ 1.300   ]
MCH Reference     [ 0.760   ]...................[ 0.850   ]
MCH/DRAM Refernce [ 0.900   ]...................[ 1.110   ]
ICH I/O           [ 1.500   ]...................[ 1.500   ]
ICH Core          [ 1.100   ]...................[ 1.100   ]
 
DRAM Voltage      [ 1.800   ]...................[ 2.220   ]
DRAM Termination  [ 0.900   ]...................[ 1.110   ]
Channel A Ref     [ 0.900   ]...................[ 1.110   ]
Channel B Ref     [ 0.900   ]...................[ 1.110   ]

******Advanced BIOS Features******
 
Limit CPUID Max to 3............................[ Disabled ]
No-Execute memory Protect.......................[ Disabled ]
CPU Enhance Halt (CIE)..........................[ Disabled ]
C2/C2E State Support............................[ Disabled ]
C4/C4E State Support............................[ Disabled ]
CPU Thermal Monitor.............................[ Disabled ]
CPU EIST Function...............................[ Disabled ]
Virtualization Technology.......................[ Disabled ]