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Old January 24, 2010, 09:34 AM
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I'm just wondering if everything looks good...

So far it's ran LinX at 4096MB memory usage for 1h20min. Core 0/2 peaked at 72C and core 1/3 peaked at 68C. This is with HT on (and thus LinX running 8 threads) and Turbo is disabled along with SpeedStep.

I'm running 200x21 with the RAM at 1600MHz. UCLK and QPI Link are set to Auto frequency.

CPU: 1.32500
CPU PLL: 1.84
QPI/DRAM Core: 1.23750 (this is considered Uncore?)
IOH: 1.10 (stock)
IOH PCIE: 1.50 (stock)
ICH: 1.10 (stock)
ICH PCIE: 1.50 (stock)
DRAM Bus: 1.64
Left all the DRAM REF voltages on Auto.

Also Load-Line Calibration, CPU Differential Amplitude, CPU Clock Skew, CPU Spread Spectrum, IOH Clock Skew and PCIE Spread Spectrum are all on Auto.

Seems alright to me, only the CPU voltage is showing in Purple, rest are Blue so they're within safety limits I guess. I'm a bit concerned of the DRAM Bus, but my RAM is spec'd at 1.65V. The XMP profile sets it to 1.66V (which gives me a warning message) so I'm already down a bit. I might try to get this lower though.

I just want some second opinions though, maybe there's things I should improve upon? I want 24/7 stability basically, or pretty damn close. I don't want a random BSOD coming up when I'm in the midst of doing something.

And to re-cap my parts:
i7 920 D0
P6TD Deluxe BIOS 0303
Mushkin Blackline DDR3-1600 3x2GB 7-9-7-24-1N
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Old January 24, 2010, 10:05 AM
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Seems fine to me.
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Old January 24, 2010, 04:50 PM
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Hmm well after nearly 5h of LinX, it stopped with an Error :(

I'll deem that stable enough though. At least Dark Void doesn't crash/BSOD anymore.
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Old January 24, 2010, 08:04 PM
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How many cycles of LinX is 5 hrs, as in GFlops? Looks like a sweet OC to me ;)
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Old January 25, 2010, 03:06 PM
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Quote:
Originally Posted by rjbarker View Post
How many cycles of LinX is 5 hrs, as in GFlops? Looks like a sweet OC to me ;)
Just over 100 if I recall. ~53GFlops per run?
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Old January 25, 2010, 05:58 PM
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Forgot to mention, today my PC didn't post when I got home and turned it on.

I decided to drop back to 0209 BIOS (from 0303). Hopefully that fixes it. I found in general it seemed like 0303 didn't like to post at random intervals. No idea why, only thing listed on it is more CPU support.

Might help somebody, though by the looks of things not many have P6TDs.
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Old January 26, 2010, 11:09 AM
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Quote:
Originally Posted by jdrom17 View Post
I'm just wondering if everything looks good...

So far it's ran LinX at 4096MB memory usage for 1h20min. Core 0/2 peaked at 72C and core 1/3 peaked at 68C. This is with HT on (and thus LinX running 8 threads) and Turbo is disabled along with SpeedStep.

I'm running 200x21 with the RAM at 1600MHz. UCLK and QPI Link are set to Auto frequency.

CPU: 1.32500
CPU PLL: 1.84
QPI/DRAM Core: 1.23750 (this is considered Uncore?)
IOH: 1.10 (stock)
IOH PCIE: 1.50 (stock)
ICH: 1.10 (stock)
ICH PCIE: 1.50 (stock)
DRAM Bus: 1.64
Left all the DRAM REF voltages on Auto.

Also Load-Line Calibration, CPU Differential Amplitude, CPU Clock Skew, CPU Spread Spectrum, IOH Clock Skew and PCIE Spread Spectrum are all on Auto.

Seems alright to me, only the CPU voltage is showing in Purple, rest are Blue so they're within safety limits I guess. I'm a bit concerned of the DRAM Bus, but my RAM is spec'd at 1.65V. The XMP profile sets it to 1.66V (which gives me a warning message) so I'm already down a bit. I might try to get this lower though.

I just want some second opinions though, maybe there's things I should improve upon? I want 24/7 stability basically, or pretty damn close. I don't want a random BSOD coming up when I'm in the midst of doing something.

And to re-cap my parts:
i7 920 D0
P6TD Deluxe BIOS 0303
Mushkin Blackline DDR3-1600 3x2GB 7-9-7-24-1N
Doe you have any idea what types of BSOD you are getting?

Your QPI seems a little low for trying to acheive 4Ghz with DDR1600 ram. Remember that the Uncore:QPI ratio is important, you want to try and keep the ratio as close to or below 8:9 as possible. So that means you should set your QPI to its lowest setting and set your uncore to 16 or 17 (2xRam Multiplier or 2xRam+1). I would try 1.275 - 1.3 QPI Voltage and leave DRAM Voltage at 1.65 and then test again. I usually use Prime95 for stress tests. The small FTT should stress your CPU stability and then use blend to test your memory. You can also use Memtest to verify your memory is not the problem.

Here is a link to more about the QPI:

XtremeSystems Forums - View Single Post - Core i7/X58 Overclocking Thread
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Old January 26, 2010, 04:19 PM
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Haven't had any BSODs thus far. Was only before when my voltages were far higher and I was running Turbo still.

I'm content, so I won't increase voltages until I experience any kind of instability.
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