here are my exact bios setting for 508x8.5 with 8gigs of ram.
Code:
MB Intelligent Tweaker(M.I.T.) 

Robust Graphics Booster ...............: Auto 
CPU Clock Ratio ..........................: 8
Fine CPU Clock Ratio...................: 0.5 
CPU Frequency ............................: 4.318 (508 x 5.5) 

Clock Chip Control 
Standard Clock Control 
CPU Host Clock Control................: Enabled 
CPU Host Frequency (Mhz) ...........: 508 
PCI Express Frequency (Mhz) ........: Auto 
C.I.A. 2...........................................: Disabled 

Advanced Clock Control 
CPU Clock Drive...........................: 1000mv 
PCI Express Clock Drive................: 1000mv 
CPU Clock Skew (ps)....................: 0ps 
MCH Clock Skew (ps)...................: 50ps 

DRAM Performance Control 
Performance Enhance......................: Turbo 
MCH Frequency Latch....................: Auto 
System Memory Multiplier ..............: 2.00D 
Memory Frequency (Mhz) ..............: 1016 
DRAM Timing Selectable ...............: Manual 

Standard Timing Control 
CAS Latency Time.........................: 5 
tRCD .............................................: 5 
tRP............................................... ..: 5 
tRAS.............................................. .: 15 
Advanced Timing Control [Press enter] 
tRRD.............................................. .: [Auto] 
tWTR.............................................. : [Auto] 
tWR............................................... .: [Auto] 
tRFC.............................................. ..: [Auto}
tRTP.............................................. ...: [Auto] 
Command Rate (CMD) ....................: 0 [Auto] 
Channel A 
Channel A Timings Settings 
Static tRead Value..............................: 9
DDR Write Training............................Disable
REST AUTO
Channel B 
Channel B Timings Settings 
Static tRead Value..............................: 9
DDR Write Training............................Disable
REST AUTO 
Motherboard Voltage Control
Load-Line Calibration.........................: Enabled 
CPU Vcore...............1.30000V..........: 1.4125v
CPU Termination.........1.200V............: 1.42v 
CPU PLL.................1.500V...............: 1.57
CPU Reference...........0.760V............: 0.924v 
MCH/ICH 
MCH Core................1.100V.............: 1.42v 
MCH Reference...........0.760V..........: 0.939v
MCH/DRAM Reference......900........: Normal 
ICH I/O.................1.500V...............: Normal
ICH Core................1.100V..............: Normal
DRAM 
DRAM Voltage............1.800V..........: 1.90v
DRAM Termination........0.900V.......: Normal 
Channel A Address Vref..0.900V.......:Noamal 
Channel B Address Vref..0.900V.......:Normal 

Advanced Settings 
Limit CPUID Max. to 3...................: Disabled 
No-Execute Memory Protect...........: Enabled 
CPU Enhanced Halt (C1E)..............: Disabled 
C2/C2E State Support....................: Disabled 
x C4/C4E State Support.................: Disabled 
CPU Thermal Monitor 2(TM..........: Disabled
CPU EIST Function......................... Disabled 
Virtualization Technology.................: Disabled
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