Live MB OC Report :: ASUS Rampage Extreme

[synthetic2008]

Hi eternal_fantasy, 3oh6, MikeMK, rob2k, and other friends in this thread RE ! I often follow all thread about all of you about the setting of asus Rampage extreme.
Finally, I have the RE with procie QX9770 and DDR3 Kingston XMP profile 14400 freq band with 1800 timing 8-8-8-21 in my seting bios 0501 :

ai overclock tuner: XMP (extreme memory profile) (profile 1)

Once, I tried to change into manual and at Dram freq = 1800, but when I saved the setting the bios system stopped and not responded. Then I rechanged into the XMP normal again.

OC CPU lvl up: auto
OC Mem lvl up: auto
FSB : 460
CPU Ratio setting : 10, and cpu configuration :
- C1E support : disable
- CPU TM function : enable
- Intel Speedstep : Disable
- Max cupid : disable
- Vanderpool : enable
- Execute disable bit : enable
CPU Clock SKEW: auto
NB Clock SKEW: auto
FSB strap to north bridge : auto
PCI-E Freq: 100mhz
Dram Freq: 1800
Dram Command Rate: 1N
Dram Timing control : Manual (8-8-8-21)
And others : auto
ai clock twister: Auto
ai transaction booster: auto
EPU II Phase Cntrl : Auto
Vcore : 1.34375v
LLC load line calibration: disable
CPU PLL : 1,51106
Fsb termination voltage : 1,31216
All other GTL's: Auto
North Bridge : 1.44472
Dram voltage : 1.94v
ND DDR vref + Channel refs are all : auto
SB 1.5 : 1.51106
SB 1.05: 1.06039
All spread spectrums: Disabled.

1. Why the tuner in the ai overclock must be XMP ? If we set the DRAM freq = 1800 manually, the system did not respond and the computer is hang.

2. The sytem is not stable. The vcore temperature is 45-47 degree centigrade, NB temperature is 57-60 degree centigrade (very hot). SB temperature is 47-49 degree centigrade.
Pls advise the ssetting of the bios so that the system can be stable in good condition.