** Official ** Gigabyte UD3 P45 Series -- EP45-UD3 / EP45-UD3R / EP45-UD3P

[Capt Proton]

Or the Ram just wont do any higher.

******Motherboard Intelligent Tweaker (M.I.T.)******

******DRAM Performance Control******

Performance Enhance.............................[ Standard ]
(G) MCH Frequency Latch.........................[ 333 ]400 or Auto
System Memory Multipler.........................[ 2.40b ]2.0D
Memory Frequency 1150...........................[ 1178? ]
DRAM Timing Selectable..........................[ Manual ]

******Advanced Timing Control******

tRRD[3].........................................[ auto ]3
tWTR[3].........................................[ auto ]11 (3 in BIOS)
tWR[6]..........................................[ auto ]14 (6 in BIOS)
tRFC[54]........................................[ auto ]54
tRTP[3].........................................[ auto ]3
Command Rate (cmd)[0]...........................[ auto ]

******Channel A Timing Settings******

Static tRead Value [ 8 ] ................[ 8 ]11

******Channel A Driving Settings******

Drive Strength Profile..........................[ oc1200 ]Auto

******Channel B Timing Settings******

Static tRead Value [ 8 ] ................[ 8 ]11

******Channel B Driving Settings******

Drive Strength Profile..........................[ oc1200 ]Auto

******Motherboard Voltage Control******

Load-Line Calibration...........................[ Enabled ]
CPU Vcore [ 1.2125 ]...................[ 1.350 ]
CPU Termination [ 1.20 ]...................[ 1.260 ]1.3
CPU PLL [ 1.50 ]...................[ 1.450 ]1.5
CPU Reference [ 0.760 ]...................[ 0.823 ].74 at 1.2 VTT

MCH Core [ 1.100 ]...................[ 1.30 up to 1.4 and a no go ]1.4
MCH Reference [ 0.760 ]...................[ 0.838 ]
MCH/DRAM Refernce [ 0.900 ]...................[ 0.900 ]1.1
ICH I/O [ 1.500 ]...................[ 1.500 ]
ICH Core [ 1.100 ]...................[ 1.100 ]

DRAM Voltage [ 1.800 ]...................[ 1.840 ]2.2
DRAM Termination [ 0.900 ]...................[ 0.900 ]1.1
Channel A Ref [ 0.900 ]...................[ 0.900 ]1.1
Channel B Ref [ 0.900 ]...................[ 0.900 ]1.1

First of all, if I have your memory identified correctly, it's rated voltage is 2.2V. 1.84 is quite low. The default voltage of 1.8V is always that, as it shows the default voltage for DDR2 in general. I also think your static tRead value is too low for this FSB. try 11 or more, at least until you are stable.
MCH Frequency Latch - Set to 400 with a multiplier of 2.0, or auto with a multi of 2.0D
Other suggestions as well.