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Asus P5N32-E SLI and TWIN2X4096-8500C5


vilsonfarias

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Greetings,

 

When I set my memory to run at 1066Mhz, memtest shows 2 errors in 3 passes. The computer posts, system starts, but occasionally it shows BODs or just hungs. When running at 800Mhz, everything works perfectly and memtest dont show any error even after 5 passes.

 

My config is :

- Asus P5N32-E SLI (BIOS v.0.906)

- Intel Core 2 DUO 6600

- EVGA 8800 GTX Superclocked

 

- Corsair TWIN2X4096-8500C5 (1066Mhz - 4096 Mb - 2 sticks)

- Linked 1:1 (1066Mhz)

- 5-5-5-15 2T 2.1

- USB Legacy disabled

- All other config set to default values

 

- PSU OCZ GameStream 850W

 

Is there any other config or advice I should consider to get it work perfectly at 1066Mhz or do I have bad memory that should be replaced?

 

Should I try other voltage than 2.1V? I read something about 1.95V. Is this a real good try? Any help would be appreciated.

 

 

Best regards,

Vilson

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Download memtest from http://www.memtest.org and extract the ISO image. Burn the ISO image to an CD-ROM disk. Perform a hard reset of your system.


  1. Shut the system down
  2. Remove the power cord
  3. Remove the CMOS Battery
  4. Set the CMOS_CLR Jumper to On
  5. Press the power button for 10 seconds
  6. Let sit for 10 minutes
  7. Set the CMOS_CLR Jumper to Off
  8. Insert the CMOS Battery
  9. Insert the Power Cord
  10. Restart the system
  11. Enter the BIOS
  12. Load Default Settings
  13. Save Default Settings and Exit

Insert a single stick of DRAM in Slot 1 (Closest to the CPU) Shut your system down. Restart and enter your BIOS.

 

Set to these values:

AI Tuning = Manual
Nvidia GPU Ex = Disabled
LinkBoost = Disabled

Extreme Tweaker Screen

FSB & Memory Config[/b][indent]FSB - Memory Clock Mode = Unlinked
FSB (QDR), MHz = 266 (1066)
MEM (DDR), MHz = 533 (1066)

CPU Configuration
CPU Multi = 9
CPU Internal Thermal Control = Enabled
Limit CPUID MaxVal = Disabled
Enhanced C1 (C1E) = Disabled 
Execute Disable Bit = Enabled
Virtualization Technology = Enabled
Enhance Intel Speedstep Tech = Disabled

Chipset

Memory Timing Setting
tCL = 5
tRCD = 5
tRP = 5
tRAS = 15
Command Per Clock = 2 clocks

Advanced Memory Settings

tRRD = Auto
tRC = Auto
tWR = Auto
tWTR = Auto
tREF = Auto
tRD = Auto
tRFC = 60  
Async Latency = Auto

Voltages
Vcore  = Auto
Vdimm (DRAM Voltage)  = 2.1v
1.2v HT = 1.2v
NB Vcore = 1.45v
SB Vcore = 1.55v
CPU VTT = 1.35v

Legacy USB = Disabled for Memtest, Enabled Afterwards

Shut the system down. Boot to the Memtest CD and allow for two full passes. Shut the system down, remove the stick from slot 1 and insert it in slot 3 and retest with Memtest. If both sticks test stable, shut the system down and insert the second stick of DRAM in Slot 1 giving you one stick in slot 1 and one stick in slot 3. Restart the system and boot to the Memtest CD. Allow for two full passes. When assured of stable DRAM, then enter Windows and Run CPU-z and post screenshots of CPU-z's CPU, Memory and SPD tabs.

 

Results?

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DerekT and RAM Guy,

 

I'd like to thanks you for the valuable help. I changed voltage settings, following your suggestions and now my machine is working perfectly. The RAM is now at 2.15V and I ran memtest for 11 hours (7 passes) and no errors where found.

 

Here is my new config (changes in bold) :

 

AI Tuning = Manual

Nvidia GPU Ex = Disabled

LinkBoost = Disabled

 

Extreme Tweaker Screen

 

FSB & Memory Config[/b]

FSB - Memory Clock Mode =
Unlinked

FSB (QDR), MHz = 266 (1066)

MEM (DDR), MHz = 533 (1066)

 

CPU Configuration

CPU Multi = 9

CPU Internal Thermal Control = Enabled

Limit CPUID MaxVal = Disabled

Enhanced C1 (C1E) = Disabled

Execute Disable Bit = Enabled

Virtualization Technology = Enabled

Enhance Intel Speedstep Tech = Disabled

 

Chipset

 

Memory Timing Setting

tCL = 5

tRCD = 5

tRP = 5

tRAS = 15

Command Per Clock = 2 clocks

 

Advanced Memory Settings

 

tRRD = Auto

tRC = Auto

tWR = Auto

tWTR = Auto

tREF = Auto

tRD = Auto

tRFC =
60

Async Latency = Auto

 

Voltages

Vcore = Auto

Vdimm (DRAM Voltage) =
2.15v

1.2v HT = 1.2v

NB Vcore = 1.45v

SB Vcore = 1.55v

CPU VTT = 1.35v

 

 

Best regards,

 

Vilson
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