DDR3 X.M.P. and Sabertooth x58 Problem

[GrogMon88]

So I recently built my first computer ( 2 days ago )and just now ran into my first real problem it seems.

I've had X.M.P. enabled on the DDR3 RAM I purchased from Newegg.com and just recently after putting it into sleep mode for a bit and then trying to wake it, the comp crashed. I restarted the computer several hours later after I returned home and after booting it said overclocking failed, and told me to adjust the bios.

At this moment I'm currently running the X.M.P. again and it seems to be working fine, but if anyone could help me find the source of this issue, that would be great.

System Specs:

Intel Core i7 950 1366
ASUS Sabertooth x58
G.SKILL Ripjaws PC3-12800 3x4GB ( F3-12800CL9T-12GBRL)
Corsair CMPSU-850TX
Western Digital Caviar 1TB



Current BIOS:

Configure System Performance
----------------------------
Target CPU Frequency: 3059MHz
Target DRAM Frequency: 1600MHz

CPU Level Up [AUTO]
----------------------------
Ai Overclock Tuner [X.M.P.]
eXtreme Memory Profile [Profile #1]
Profile Info:
1600MHz-9-9-9-24-2N-1.50V
CPU Ratio Setting [AUTO]
CPU Ratio Setting [AUTO]
Intel(R) SpeedStep (TM) Tech [ENABLED]
Intel(R) TurboMode Tech [ENABLED]
BCLK Frequency [133]
PCIE Frequency [100]
DRAM Frequency [DDR3-1600MHz]
UCLK Frequency [AUTO]
QPI Link Data Rate [AUTO]
ASUS/3rd Party UI Priority [ASUS Utility]

>DRAM Timing Control

***Please Key In Number Directly!***
CPU Voltage Control [MANUAL]
CPU Voltage [AUTO]
CPU PLL Voltage [AUTO]
QPI/DRAM Core Voltage [1.40000]
IOH Voltage [AUTO]
IOH PCIE Voltage [AUTO]
ICH Voltage [AUTO]
ICH PCIE Voltage [AUTO]
DRAM Bus Voltage [1.50]
DRAM DATA REF Voltage on CHA [AUTO]
DRAM DATA REF Voltage on CHA [AUTO]
DRAM DATA REF Voltage on CHB [AUTO]
DRAM DATA REF Voltage on CHB [AUTO]
DRAM DATA REF Voltage on CHC [AUTO]
DRAM DATA REF Voltage on CHC [AUTO]

*************************************
Load-Line Calibration [AUTO]
CPU Differential Amplitude [AUTO]
CPU Clock Skew [AUTO]
CPU Spread Spectrum [AUTO]
IOH Clock Skew [AUTO]
PCIE Spread Spectrum [AUTO]


Any help would be greatly appreciated!
Also if anyone has suggestions to optimize my system I'll take whatever I can get!

Thank you for your time,
Greg

[GSKILL TECH]

QPI/DRAM Core Voltage [1.40000]

ASUS BIOS automatically sets this with XMP enabled. I guess too many people complained, so they just plugged in a random number. Well, obviously it just causes a slightly different type of problem.

Set that option to AUTO, or lower it to see what's most stable. 1.20V should be a better guess.

Thank you
GSKILL TECH