**OFFICIAL Gigabyte UD3 P45 Yorkfield (45nm Quads) OC and Discussion Thread**

[Sparda]

Just put cpu and mch reference on auto/normal first. You can try set them later by ET6 or BIOS.
525x9 click
500x9 click
500x8 and 515x7 click

I use this as my reference and did just fine. All using 400 strap ; 1:1 and tRD 9 Good luck 333 strap 5:6 use vmch less than 1.38v.

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Turbo
CPU Clock Ratio ..........................: 9x
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 4500Mhz
Clock Chip Control 
Standard Clock Control
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............:500Mhz and up
PCI Express Frequency (Mhz) .........:100Mhz
C.I.A. 2........................................: Disabled
Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: 1000mv 
PCI Express Clock Drive.................: 1000mv
CPU Clock Skew (ps)....................: 50ps [0ps - 100ps]
MCH Clock Skew (ps)...................: 50ps [0ps - 100ps]
DRAM Performance Control
Performance Enhance...................: [Standard] when stable try Turbo or Extreme
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............:2.00D
Memory Frequency (Mhz) ..............: Mhz
DRAM Timing Selectable ................: [Manual] 
Standard Timing Control
CAS Latency Time........................: 5
tRCD .........................................: 5
tRP'...........................................: 4
tRAS..........................................:  12
Advanced Timing Control [Press Enter] - by RAM
tRRD...........................................:[Auto]3
tWTR..........................................: :[Auto] 3
tWR............................................::[Auto] 6
tRFC...........................................::[Auto] 52
tRTP...........................................::[Auto] 3
Command Rate (CMD) ....................:2

Channel A

Channel A Timings Settings [Press Enter] 
Static tRead Value.........................:9
 tRD Phase0 Adjustmen...................:Auto
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 8
Twr2wr(Different Rank)...................:Auto 8
Twr2rd(Different Rank)...................:Auto 7
Trd2wr(Same/Diff Rank)..................:Auto 9
Dimm1 Clock Skew Control...............:Auto  ps [-300ps to +300ps]
Dimm2 Clock Skew Control...............:Auto  ps [-300ps to +300ps]
DDR3 Write Training........................:Enabled
Channel A Driving Settings [Press Enter] 
Driving Strength Profile.................:Auto

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

Channel B Timings Settings [Press Enter] 
Static tRead Value.........................:9
 tRD Phase0 Adjustmen...................:Auto
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 8
Twr2wr(Different Rank)...................:Auto 8
wr2rd(Different Rank).....................:Auto 7
Trd2wr(Same/Diff Rank)..................:Auto 9
Dimm1 Clock Skew Control...............:Auto  ps [-300ps to +300ps]
Dimm2 Clock Skew Control...............:Auto  ps [-300ps to +300ps]
DDR3 Write Training........................:Enabled
Channel B Driving Settings [Press Enter] 
Driving Strength Profile.................:Auto
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
Loadline Calibration.………................Enable
CPU Vcore….……….........................:by CPU - Prime ftt test
CPU Termination…..... 1.200V*.......: 1.3v and up  by CPU - Prime blend test
CPU PLL…………………....1.500V*.......: 1.50-1.59v
CPU Reference.…………....0.76V*.......: Normal
MCH/ICH
MCH Core…………….....1.100V...........: 1.4-1.58 Prime blend test
MCH Reference….…….0.76V...........; Normal
MCH/DRAM Ref.…......0.900V...........: 1.01v   50% of VDimm or less
ICH I/O……………….....1.550V............: 1.50v
ICH Core…………...……1.100V............: 1.10v
DRAM
DRAM Voltage ……....1.800V............: 2.02v - by Ram
DRAM Termination .…0.900V............: 1.010v  50% of VDimm or less
Channel A Reference 0.900V............: 1.010v 50% of VDimm or less
Channel B Reference 0.900V............: 1.010v 50% of VDimm or less

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Disabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled]