Q9550 4Ghz Overclock help

[brads900]

Hey, currently got my Q9550 overclocked to 3.82Ghz at the moment and stable. however im trying to push the 4Ghz boundary, im running x8.5 multiplier and 450 FSB. any tips on why i cant get it stable on any higher? temps are not a problem. i have run it at 3.9Ghz and temp maxed at 42 degrees on prime 95 but after crashing on that it would not boot and had to clear cmos.
any help i would be so thankful for!

Specs:
Q9550
Striker 2 Formula
Corsair XMS2 4GB
9800 GX2
Apogee SSD
Galaxy 1000w
Antec 1200 case (plenty of airflow)

Thanks in advance!

 

[redduc900]

Use this template to post all of your current BIOS settings at 3.82GHz...

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

Memory Timing Setting
P1 =
P2 =
tCL ( CAS Latency ) =
tRCD =
tRP =
tRAS =
Command Per Clock (CMD) =
tRRD =
tRC =
tWR =
tWTR =
tFAW =
tRD =
tRTP =
tRFC =
tREF =

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

CPU Configuration
CPU Internal Thermal Control = Disabled
Limit CPUID MaxVal = Disabled
Enhanced C1 (C1E) = Disabled
Execute Disable Bit =
Virtualization Technology = Disabled
Enhanced Intel SpeedStep(tm) Tech. = Disabled
CPU Core 2 = Enabled
CPU Core 3 = Enabled
CPU Core 4 = 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

 

[brads900]

Extreme Tweaker
CPU Level Up = Auto
Memory Level Up = Auto
AI Overclock Tuner = Manual
CPU Multiplier = x8.5
FSB - Memory Clock Mode = Unlinked
FSB - Memory Ratio = ---
FSB (QDR) MHz = 1800 rated (450)
MEM (DDR) MHz = 800
LDT Frequency = x5
PCIE Bus Slot 1 & 2 MHz = 100
PCIE Bus Slot 3 MHz = 100
SPP<->MCP Ref Clock, MHz = 200.0
SLI-Ready Memory = Disabled

Memory Timing Setting
P1 = ?
P2 = ?
tCL ( CAS Latency ) = 5
tRCD = 5
tRP = 5
tRAS = 18
Command Per Clock (CMD) = 2T
tRRD = 3
tRC = 22
tWR = 4
tWTR = 9
tFAW = ?
tRD = 7
tRTP = ?
tRFC = 42
tREF =7.8uS

Over Voltage
CPU Voltage = Auto
Loadline Calibration = Enabled
CPU PLL Voltage = Auto
CPU VTT Voltage = Auto
Memory Voltage = 1.90
NB Core Voltage = Auto
SB Core Voltage = Auto
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 = Enabled
CPU Core 4 = 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


Few things i couldnt find but think i got it all,
thanks!

 

[redduc900]

Are you running the latest v2201 BIOS revision?

 

[brads900]

yes updated my bios before i started

do you think my ram may be bottlenecking it? i cant really think of much else!

 

[redduc900]

Post all of the current voltages listed under the Voltage Monitor screen. Also post a link to your specific RAM, and the VID of your quad (Real Temp--> 'Settings' page--> Max Core VID).

 

[brads900]

Vcore - 1.25
Vin1 - 3.23
+5v - 4.76
+12v - 11.97
-5v - -4.86
+5v VCCH - 4.85
VBAT - 2.94
HT 1.2v - 1.20
SB - 1.49
NB - 1.38
Memory - 1.86
CPU VVT - 1.30

http://www.corsair.com/products/xms2/default.aspx

Mine is the TWIN2X4096-6400C5

Real temp says my VID is 1.2125

thanks for your help mate

 

[redduc900]

Try a FSB of 460MHz again for a 3.9GHz clock, but increase the Vcore to 1.35 - 1.40V, NB Core to 1.45 - 1.5V, CPU PLL to 1.6 - 1.66V, and VTT to 1.33 - 1.35V. Also try increasing the 1.2 HT to around 1.30 - 1.33V.

 

[brads900]

Just tried that FSB and those Voltages and just restarted like it was doing before it reaches windows screen, so frustrating. any other ideas?

 

[redduc900]

If it's restarting then it's more than likely a memory related issue. Make sure to run Memtest86+ before attempting to boot into Windows.

 

[brads900]

okay ill run memtest now and tell u wat i find!

 

[brads900]

Just ran a few passes and no errors were returned, god this is frustrating!