Need Help...

[ctyper]

Hardware:

 

Motherboard – Asus Rampage extreme - http://www.asus.com/Motherboards/Intel_Socket_775/Rampage_Extreme

 

CPU – Intel E8400 Rer. E0 - http://ark.intel.com/products/33910/Intel-Core2-Duo-Processor-E8400-(6M-Cache-3_00-GHz-1333-MHz-FSB) – VID indentified by CoreTemp, is 1.25 V.

 

Mem – OCZ Reaper PC3-12800 - http://www.ocztechnology.com/ocz-ddr3-pc3-12800-reaper-hpc-eol.html - as you can see in the OCZ Website, it says 7-7-7-24 @ 1.7 V., but in my mems, it says 7-7-7 @ 1.9 V., so I specified in my board settings 7-7-7-24 @ 1.9 V.

 

Card – Gainward HD 4870 1GB DDR5 - http://www.bit-tech.net/hardware/graphics/2008/11/18/gainward-radeon-hd-4870-1gb-golden-sample/1 - Couldn’t find it on Gainward Website.

 

Hi all!

 

My name is Hugo, and I’ve been trying for a long time before asking for help, as I’m doing right now, to put this setup working. I’ve been reading lots of forums, tech reviews and explanations, everything I can find, but I can’t pass the setup I have right now, if someone could help, I’d be grateful.

 

This is my current setup:

 

CPU Configuration:

 

C1E Support – Disable

CPU TM Function – Enable

Max CPUID Value Limit – Enable

Vanderpool Technology – Enable

Execute Disable Bit – Enable

Core Multi-Processing – Enable

 

Extreme Tweaker:

 

Ai Overclock Tuner – Manual

OC From CPU Level Up – AUTO

OC From Memory Level Up – AUTO

FSB Frequency – 375

CPU Ratio Setting – 09.0

CPU Clock Skew – AUTO

NB Clock Skew – AUTO

FSB Strap To North Bridge – 400MHz

PCIE Frequency – 100

DRAM Frequency – DDR3 – 1500MHz

DRAM Command Rate – 2N

DRAM Timing Control – Manual

CAS# Latency – 7

RAS# To CAS# Delay – 7

RAS# Pre Time – 7

RAS# ACT Time – 24

All other memory settings – AUTO

DRAM Static Read Control – AUTO

Ai Clock Twister – AUTO

Ai Transaction Booster – AUTO

 

Voltages:

 

CPU Voltage – 1.18x

Load-Line Calibration – Enable

CPU PLL Voltage – (min.)

FSB Termination Voltage – (min.)

CPU GTLVref (0) – AUTO

CPU GTLVref (1) – AUTO

CPU GTLVref (2) – AUTO

CPU GTLVref (3) – AUTO

NB GTLVref – AUTO

North Bridge Voltage – (min.)

DRAM Voltage – 1.9x

NB DDRVref – AUTO

DDR3 ChannelA Vref – AUTO

DDR3 ChannelB Vref – AUTO

South Bridge 1.5 Voltage – 1.5 (min.)

South Bridge 1.05 Voltage – 1.06 (min.)

CPU Spread Spectrum – Disable

PCIE Spread Spectrum – Disable

 

These are the lowest settings (voltages) i found stable for this setup, Prime 95 for 24h.

My objective is to run the memory at stock level, 1600MHz, but I’ve tried everything, voltages up an down and I can’t find a stable setup, or BSOD or Prime 95 fails. Can anyone help me?

 

Thank you very much,

 

Best Regards,

 

Hugo Marreiros

[dihartnell]

CPU volts looks low to get decent overclock. To get around 4GHz you will need around 1.36v for CPU voltage. You will need to punch your FSB up a lot more and adjust your mem strap accordingly. What sort of CPU cooling do you have?

Edited September 9, 2011 by dihartnell