Help with overclock

[Ultim8]

Hi guys,

Looking to get this OC further if you can help, prime runs fine upto these settings:

Hardware/Software
Mother Board ( EVGA X58 Classified E-760 )
Drivers ( Default Windows 7 64 Bit )
Bios ( S61J )
CPU ( 920 D0 )
CPU Cooler ( Heat Killer 3.0 Copper )
Memory ( Corsair Dominator GT 1866 7-8-7-20 (CMG6GX3M3A1866C7) )
PSU ( Corsair HX1000W )
GPU ( ATI Radeon HD4890 1GB )
Drivers ( ATI Catalyst 9.11 )
Operating System ( Windows 7 64 Ultimate )


Frequency Control
CPU Clock Ratio ( 20X )
CPU Host Frequency (Mhz) ( 185 )
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( 3892 @ 21 x 185 )
CPU Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )


Memory Feature
Memory Speed ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( Auto = 1482Mhz )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( Auto )
tCL Setting ( 11 )
tRCD Setting ( 11 )
tRP Setting ( 11 )
tRAS Setting ( 28 )
tRFC Setting ( 88 )
Command Rate ( 1t )


Voltage Control
EVGA VDroop Control ( With VDroop )
CPU VCore ( Auto = 1.23125 )
CPU VTT Voltage ( Auto = +0 )
CPU PLL VCore ( Auto = 1.800 )
IOH PLL VCore ( Auto = 1.800 )
DIMM Voltage ( Auto = 1.500 )
DIMM DQ Vref ( Auto = +0mV )
QPI PLL VCore ( Auto = 1.100 )
IOH VCore ( Auto = 1.100 )
IOH/ICH I/O Voltage ( Auto = 1.500 )
VTT PWM Frequency ( 250 KHZ )
CPU PWM Frequency ( 800 KHZ )
CPU Impedance ( Auto )
QPI Signal Compensation ( Auto )
ICH VCore ( Auto = 1.050 )


CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( Auto )
OC Recorvery ( Disabled )


PnP/PCI Configuration
Init First Display ( PCIEx )
Maximum Payload Size ( 128 )

Power Management Setup
ACPI Suspend Type ( S3 )
HPET Support ( Enabled )
HPET Mode ( 64-bit )

But one i go above these on e-leet prime crashes and i get various BSOD any suggestions? Im following the guide on evga's forums but its not very clear.

Cheers

Ulti

 

[Ultim8]

have i not provided enough info?

 

[rodo]

What does the BSOD say?

 

[Ultim8]

I have had the irq not equal to, clock interrupt and the system has encountered an uncorrectable hardware error. I have also had the screen completely artefact and freeze.

 

[DavyBoy]

Why are you using 21x uncore multiplier when you are using 8x mem multi?

You are running 1866MHz CAS7 Dominator GT's, yet you have them running at 1480MHz CAS11?!?!

Try using 10x mem multi, and 20x uncore (uncore should be 2 times the mem multi, some people use 2x +1), and set your timings manually to your RAM's ratings, 7-8-7-20-1t, also remember to set VDimm to 1.65v instead of 1.5v, this will make your RAM run much closer to its rated frequency (1850MHz).

 

[Ultim8]

Hi Davyboy i have set the timing to the 7-8-7-20 and dimm voltage to 1.65, i have also upped the vcore voltage to 1.26250 and its passing 5 runs at LinX not but if i up the qpi to 195 i get a bsod with irq not less or equal.

Ph and i havent messed with dividers yet as im not at my final OC