jtmoney528

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Jul 23, 2009
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I am on the A1 board - Whenever I overclock I get a black screen on boot up. The monitor says no signal. I know I can just reset the cmos but I would really like to figure this out so I can a stable overlock.

These are my overclocked settings:

3.4GHz

CPU Clock Ratio ( 20)
CPU Host Frequency (Mhz) ( 164 )
CPU Uncore Frequency (Mhz) ( 20x )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
Memory Feature
Memory Control Setting ( Enabled )
Memory Frequency ( 2:10 1333 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Parameters
tCL Setting ( 8)
tRCD Setting ( 8)
tRP Setting ( 8)
tRAS Setting ( 24)
tRFC Setting ( 74)
Command Rate ( 1T)
Voltage Control
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.28125 )
CPU VTT Voltage ( +125 )
CPU PLL VCore ( 1.8 )
DIMM Voltage ( 1.575 )
DIMM DQ Vref ( +0 )
QPI PLL VCore ( 1.15 )
IOH VCore ( 1.225 )
IOH/ICH I/O Voltage ( 1.6 )
ICH VCore ( 1.15 )
PWM Frequency ( 800 )
CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled)
Virtualization Technology ( Disable)
Logical Processor Setting
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Settings
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.8GT/s )
 

jtmoney528

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Jul 23, 2009
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I got it, the CPU Uncore Frequency (Mhz) was set to 24 and needed to be 20, I am running at 3.4 right now and will go up some more tonight.
 

jtmoney528

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Jul 23, 2009
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I was going to try this tonight:

4.2Ghz

Mother Board ( EVGA X58 )
Drivers ( Intel Chipset 9.1.0.1007 )
Bios ( SZ1A )
CPU ( 920 C0 Batch: 3841A385 )
CPU Cooler ( H2O on CPU and PWM )
Memory ( Corsair TR3X6G1600C8D 8-8-8-24-74-1T@1.625v)
PSU ( Corsair HX1000 PSU )
GPU ( GTX260 Core 216 x 3 )
Drivers ( 185.20 )
CPU Clock Ratio ( 20X )
CPU Host Frequency (Mhz) ( 200 )
CPU Uncore Frequency (Mhz) ( 17x )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 )
Memory Feature
Memory Control Setting ( Enabled )
Memory Frequency ( 2:8 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Parameters
tCL Setting ( 8 )
tRCD Setting ( 8 )
tRP Setting ( 8 )
tRAS Setting ( 24 )
tRFC Setting ( 74 )
Command Rate ( 1T )
Voltage Control
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.4 ) <<<--- Increased this to stop BSODs
CPU VTT Voltage ( +300 ) <<<--- Increased this to stop BSODs
CPU PLL VCore ( 1.9 )
DIMM Voltage ( 1.625V )
DIMM DQ Vref ( +0 )
QPI PLL VCore ( 1.325 ) <<<--- Increased this to stop errors
IOH VCore ( 1.375 )
IOH/ICH I/O Voltage ( 1.625 )
ICH VCore ( 1.25 )
PWM Frequency ( 933 )
CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Logical Processor Setting
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Settings
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 4.8 GT/s )


Thoughts?
 

Kill@dor

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Apr 28, 2009
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You have SpeedStep disabled but HT enabled? Did you update the Bios? I know evga boards crave bios updates...

The CPU Uncore Frequency has to exactly double the memory multiplier for stablility. And the QPI voltage may need to go up a little...don't push it up coz i said so...just a suggestion. I think 1.4v should be ok.

I've seen people using 4GHz on the CPU with the 1.3Vcore. I think your vcore is a little high but will probably stop the blue screens.