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Required System Specifications
PSU ( Power Supply Unit ) = Thermaltake toughpower 1200W
CPU = Intel Core 2 Quad Q9550
RAM = OCZ DDR 3 1800 2 X 1GB Kit Micron Z9
HDD ( the one where you have your windows installation on ) = Seagate Barracuda 500 GB ST350032
VGA1 = Evga 9800GX2
VGA2 ( if you have ) =
VGA3 ( if you have ) =
SPU ( Sound Card ) = Supreme FX II
NorthBridge Cooling = N/A
SouthBridge Cooling = N/A
CPU Cooling = Thermalright Ultra 120 Extreme
RAM Cooling = OCZ XTC
nFORCE Chipset Drivers Version = 9.46
ForceWare/GeForce Drivers Version = 6.14.11.7516
Sound Card Drivers Version = 5.10.2.6310
BIOS version 0801 REQUIRED

BIOS Settings
Extreme Tweaker
CPU Level Up = Auto
Memory Level Up = Auto
AI Overclock Tuner = Manual
CPU Multiplier = 8.5
FSB - Memory Clock Mode = Linked
FSB - Memory Ratio = Sync
FSB (QDR) MHz = 1750
MEM (DDR) MHz = 1750
LDT Frequency = 5X
PCIE Bus Slot 1 & 2 MHz = 100
PCIE Bus Slot 3 MHz = 100
SPP<->MCP Ref Clock, MHz = 200
SLI-Ready Memory = Disabled

Memory Timing Setting
P1 = Enabled
P2 = Enabled
tCL ( CAS Latency ) = 8
tRCD = 8
tRP = 8
tRAS = 24
Command Per Clock (CMD) = 2T
tRRD = Auto 6
tRC = Auto 38
tWR = Auto 12
tWTR = Auto 19
tFAW = Auto 23
tRD = Auto 10
tRTP = Auto 7 
tRFC = Auto 8.2
tREF = Auto 7.8uS

Over Voltage
CPU Voltage = 1.35V
Loadline Calibration = Enabled
CPU PLL Voltage = Auto
CPU VTT Voltage = Auto
Memory Voltage = 1.86 V
NB Core Voltage = 1.44 V
SB Core Voltage = 1.55 V
CPU GTL REF0 Ratio = Auto
CPU GTL REF1 Ratio = Auto
CPU GTL REF2 Ratio = Auto
CPU GTL REF3 Ratio = Auto
NB GTL REF Ratio = Auto
DDR3 CHA1 Ref Volt = Auto
DDR3 CHB1 Ref Volt = Auto
DDR3 CHA2 Ref Volt = Auto
DDR3 CHB2 Ref Volt = Auto

CPU Configuration
CPU Internal Thermal Control = Disabled
Limit CPUID MaxVal = Disabled
Enhanced C1 (C1E) = Disabled
Execute Disable Bit = Enabled
Virtualization Technology = Disabled
Enhanced Intel SpeedStep(tm) Tech. = Disabled
CPU Core 2 = Enabled
CPU Core 3 ( Ignore this setting, unless you have a Quad-Core CPU ) = Enabled
CPU Core 4 ( Ignore this setting, unless you have a Quad-Core CPU ) = Enabled

Spread Spectrum Control
CPU Spread Spectrum = Disabled
PCIE Spread Spectrum = Disabled
MCP PCIE Spread Spectrum = Disabled
SATA Spread Spectrum = Disabled
LDT Spread Spectrum = Disabled

Problem Description
  I can get the system to post and run windows stable, it ran prime 95 and memtest86 with no errors and i can run 3d marks with no problem. 
However once i try to play any type of game the system will freeze within a minute. I have to back off my Ram timings to Auto and bring the 
FSB right back to 1600 before i can play games properly. I would really like to have the system running stable at 1800 or beyond linked and 
sync, could you please help me with some settings.
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