Hi Everyone,
I finally found some time to play around last weekend to get my cpu and mem to run stable at these speeds. It took a while of playing around and combining settings from the posts in the BIOS config guides (specifically the P6T and Rampage guides) since there wasn't a "direct" guide with this memory and motherboard. In any event, here are the settings that I've used:
Now some of you might be asking why I have certain items enabled such as Speedstep, C1E, C-State, VT-d, Plug and Play O/S and ACPI support while some other guides advise to disable these. Simply put, I need them for two reasons - I run multiple virtual machines simultaneously and I'd prefer to have the power consumption as dynamic/automated as possible. Also, I figure that a "true" stress tests should have as many features/instruction sets enabled and run within a 64-bit environment.
For those wondering how I tested, here's a list of what I used with screenshots:
Testing done without any errors:
Memtest86+ v4.00 - 10 passes
Prime95 (64-bit) v25.9, build 4 - Blend - approx 3 hours, 45 min
Prime95 (64-bit) v25.9, build 4 - In-place large FFTs - approx 9 hours
Hardware and drivers used (that matter) during stress-testing:
Windows 7 Professional 64-bit
i7 920 - D0 Stepping
Asus P6T Deluxe v2 - BIOS version 0704
G.Skill F3-16000CLT-6GBTD Kit (installed in ORANGE slots)
Zotac 8800GT AMP! Edition
Corsair H50 (Enermax Cluster - Push; Enermax Magma - Pull, Q-Fan Control disabled in BIOS)
Antec Skeleton - Top fan medium speed
Xigmatek NRP-MC751 - 750W
Asus Turbo V1.01.04 (contains driver for ACPI utility - driver can be installed without installing application)
Geforce version 195.62
Intel Chipset driver (none installed - used default MS drivers)
CPU-Z v1.52.2
RealTemp v3.40
Temps went as high as 76C and averages around 73-74C during full load on all 8 threads and idles around 36-34C.
CPU-Z Validation
Prime95 64-bit - In-place large FFTs test screenshot - Note: I just noticed that the screenshot shows a CPU Voltage of 1.21875 but I had errors with this voltage shortly after I took the screenshot. I bumped it up to 1.22500 and ran stable for the approx same length of time. Unfortunately, I didn't get a screenshot after changing the voltage but this was the only thing different.
Prime95 64-bit - Blend test screenshot
I finally found some time to play around last weekend to get my cpu and mem to run stable at these speeds. It took a while of playing around and combining settings from the posts in the BIOS config guides (specifically the P6T and Rampage guides) since there wasn't a "direct" guide with this memory and motherboard. In any event, here are the settings that I've used:
Code:
Ai Tweaker Tab (Items NOT listed are set to AUTO) | |- Ai Overclock Tuner - Manual |- CPU Ratio Setting - 20.0 |- Intel SpeedStep - Enabled |- BCLK Frequency - 200 |- PCIE Frequency - 100 |- DRAM Frequency - DDR3-2005MHz |- UCLK Frequency - 4009MHz |- QPI Link Data Rate - Auto | +- Dram Timing Control | |- DRAM CAS# Latency - 9 DRAM clock |- DRAM RAS# to CAS# Delay - 9 DRAM Clock |- DRAM RAS# PRE Time - 9 DRAM Clock |- DRAM RAS# ACT Time - 24 DRAM Clock | |- DRAM timing Mode - 1N | |- CPU Voltage - 1.22500 |- QPI/DRAM Core Voltage - 1.52500 |- DRAM Bus Voltage - 1.66 (ignore the warning since QPI and DRAM voltages have a difference of .5v or less) | |- Load-Line Calibration - Enabled |- CPU Clock Skew - Normal |- CPU Spread Spectrum - Disabled |- IOH Clock Skew - Normal |- PCIE Spread Spectrum - Disabled Advanced Tab | +- CPU Configuration (items NOT listed are all set to Enabled) | |- CPU Ratio Setting - 20.0 |- Active Processor Cores - All |- A20M - Disabled |- C State package limit setting - Auto | +- Chipset | |- North Bridge Configuration - PCI Express Selector - Auto |- Intel VT-d Configuration - Intel VT-d - Enabled | +- PCIPnP | |- Plug and Play O/S - Yes Power Tab | |- Suspend MOde - Auto |- Repost Videon on S3 Resume - No |- ACPI 2.0 Support - Enabled |- ACPI APIC support - Enabled
For those wondering how I tested, here's a list of what I used with screenshots:
Testing done without any errors:
Memtest86+ v4.00 - 10 passes
Prime95 (64-bit) v25.9, build 4 - Blend - approx 3 hours, 45 min
Prime95 (64-bit) v25.9, build 4 - In-place large FFTs - approx 9 hours
Hardware and drivers used (that matter) during stress-testing:
Windows 7 Professional 64-bit
i7 920 - D0 Stepping
Asus P6T Deluxe v2 - BIOS version 0704
G.Skill F3-16000CLT-6GBTD Kit (installed in ORANGE slots)
Zotac 8800GT AMP! Edition
Corsair H50 (Enermax Cluster - Push; Enermax Magma - Pull, Q-Fan Control disabled in BIOS)
Antec Skeleton - Top fan medium speed
Xigmatek NRP-MC751 - 750W
Asus Turbo V1.01.04 (contains driver for ACPI utility - driver can be installed without installing application)
Geforce version 195.62
Intel Chipset driver (none installed - used default MS drivers)
CPU-Z v1.52.2
RealTemp v3.40
Temps went as high as 76C and averages around 73-74C during full load on all 8 threads and idles around 36-34C.
CPU-Z Validation
Prime95 64-bit - In-place large FFTs test screenshot - Note: I just noticed that the screenshot shows a CPU Voltage of 1.21875 but I had errors with this voltage shortly after I took the screenshot. I bumped it up to 1.22500 and ran stable for the approx same length of time. Unfortunately, I didn't get a screenshot after changing the voltage but this was the only thing different.
Prime95 64-bit - Blend test screenshot
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