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  #21 (permalink)  
Old June 1, 2010, 09:44 AM
gingerbee's Avatar
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yes it does and sorry i can't be a huge help i stay away from ocz ram but after checking your ram is rated for 800mhz=1600@1.65vdimm this maybe your problem if you have it at auto or 1.5 it may need a voltage jump.

nice catch there rj hopefully

edit turning your ram multiplier to the lowest until you get max bclk is found it may help. just a thought
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  #22 (permalink)  
Old June 1, 2010, 10:58 AM
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As Ginger explained vDimm is the same as DRAM Voltage....thier is no way my Corair Doms (1600 Mhz) will pass stability testing with vDimm at "Stock" 1.5v....mine are set to 1.64v in BIOS....
As for RAM Ratio......you still answer what yours is set to?

For example, mine:
202 Mhz Bclk x 19 Multiplier (no Turbo Boost) and RAM Ratio set to 2:8, therefor:

CPU = 202 x 19 = 3.83 Ghz
Memory (RAM) = 202 Mhz x 2:8 = 1612 Mhz (slight RAM OC as its rated for 1600 Mhz)

Uncore should be set at least 2x 2:8 = 16x, however mine is set to 17x
vCore: 1.318v vDroop enabled (My CO Stepping Chip requires higher vCore than average DO Stepping)
vTT +125mv
vDimm 1.64v

The above s my 24/7 Stable OC, now for a Benchmark OC, I use the following:

202 Mhz x 21 (Turbo Enabled) = 4.23 Ghz
Memory is the same = 202Mhz x 2:8 = 1612 Mhz
vCore 1.425v vDroop Disabled
vTT +275mv
vDimm 1.65v

The above is only for Benchmark runs, I don't think it would pass 20x runs of LinX, but even if it did, the Temps would be too high for my liking ;)

Here is my OC Template, perhaps you can translate the "language" into Gigabyte Language

Evga X58 Classified 759 w I7 920 (CO) Overclock Settings:
3.83 Ghz - Memory @ 1612 Mhz - LinX Stable 30 Passes - Max GFlops 49.7 GB/sec
Mother Board ( EVGA X58 Classified E-759 )
Drivers (
Current )
Bios (
S227 )
CPU (
I7 920 CO Stepping )
CPU Cooler (
TRUE 120 Push/Pull )
Memory (
Corsair Dominator TR3X6G1600C8D 8-8-8-24 88 1T @1612 Mhz)
PSU (
Corsair HX 1 kW )
GPU (
GTX 480 850 / 1700/ 2000 Benching )
Drivers (
257.15 Beta )
Operating System (
Windows 7 64 Home Premium )


Frequency Control
CPU Clock Ratio (
19x )
CPU Host Frequency (Mhz) (
202 Mhz )
MCH Strap (
1600 Mhz )
CPU Uncore Frequency (Mhz) (
3237Mhz {16x } )
CPU Clock Skew (
0 ps )
Spread Spectrum (
Disabled )
PCIE Frequency (Mhz) (
100 )


Memory Feature
Memory Speed (
Disabled )
Memory Control Setting (
Enabled )
Memory Frequency (
1612Mhz / 2:8 )
Channel Interleave Setting (
6 Way )
Rank Interleave Setting (
4 Way )
Memory Low Gap (
Auto )
tCL Setting (
8 )
tRCD Setting (
8 )
tRP Setting (
8 )
tRAS Setting (
24 )
tRFC Setting (
74 )
Command Rate (
1t )


Voltage Control
EVGA VDroop Control (
With VDroop )
CPU VCore (
1.31875 )
CPU VTT Voltage (
+125 )
CPU PLL VCore (
Auto - 1.8v )
**IOH PLL VCore (
Auto - 1.8v)
DIMM Voltage (
1.64 )
DIMM DQ Vref (
+0mV )
QPI PLL VCore (
Auto 1.1v )
IOH VCore (
Auto 1.1v )
IOH/ICH I/O Voltage (
Auto 1.5v )
**BR04 ( NF200) Voltage (
Auto 1.2v ) (only on E-759)
**VTT PWM Frequency (
250 KHZ )
**CPU PWM Frequency (
800 KHZ )
**CPU Impedance (
Auto )
**QPI Signal Compensation (
Auto )
ICH VCore (
Auto 1.050v )
*PWM Frequency (
Not Used on Classified )


CPU Feature
Intel SpeedStep (
Disabled )
Turbo Mode Function (
Disabled )
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 (
4.800 GT/s )
OC Recovery (
Disabled )

PnP/PCI PCI Express
Maximum Payload Size (
512 )

Last edited by rjbarker; June 1, 2010 at 11:10 AM.
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  #23 (permalink)  
Old July 11, 2010, 10:07 AM
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I have the same board cpu combo but different ram . Have you tested the ram? it almost sounds like you have a bad stick. Are you using the blue slots ? I will post my settings if you want. right now I am @4090 with the turbo on and 1.26v vcore
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  #24 (permalink)  
Old September 9, 2010, 10:56 AM
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Location: Ontario
Posts: 18

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I PMed you llama_egg. You need to change the timing on the RAM to 7-7-7-24, up the volt to 1.58 or higher. Make sure QPI is at 1.255 and CPU volt is at 1.225 or whatever is needed. I had the same problem while hitting a wall at 180BCLK with the same setup and ram. I'm now at 19x190 with no stability issues. Took me forever to realize that the ram timing was the issue.
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