I'm running the tests for the review right now.
I'll pop the HS off after the measurements ( probably tomorrow, got lots of measurements to take ).
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Many thanks to: Sue Wu, Yiwen Lin, Steven Kuo, Vivian Lien, Joe Chan, Sascha Krohn, Joe James, Amy Deng, Jack Peterson, Hank Peng, Mafalda Cogliani, Marta Piccoli, Oliver Baltuch, Steffen Eisentein
Bill hope you can share some of your voltages used as I'm having weird experience in that 7-8-7-24 1t timings is much more stable in memtest86+ 4.0 than 8-9-8-24. And 8-9-8-24 is more stable than 9-9-9-24 all at same voltages!!!!!!! Testing with i7 920 3845B260 and P6T6 WS Revo
I haven't tried really loose timings like 9T tRCD ( mostly because this CPU is IMC & BCLK limited ).
But... on a Gigabyte GA-EX58-UD5 ( F9e BIOS ) they're stable at:
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Many thanks to: Sue Wu, Yiwen Lin, Steven Kuo, Vivian Lien, Joe Chan, Sascha Krohn, Joe James, Amy Deng, Jack Peterson, Hank Peng, Mafalda Cogliani, Marta Piccoli, Oliver Baltuch, Steffen Eisentein
Thanks Bill, seems I might have different behaving modules hence why I found 12GB config a bit tricky.
Starting prelim memtest86+ v4.0 tests and interesting 4 of the 6 modules (modules #1-4) can handle 2000mhz 7-8-7-24 with 3 of them at lower QPI/DRAM but 1 needs higher QPI/DRAM (module #3). The other 2 modules (modules #5 and #6) error out slightly in 7-8-7-24 at 2000mhz but handle 7-9-7-24 and 8-9-8-24 better with much lower vdimm than the other 4 modules <1.62v. Pairing up modules #1 + #2 + #4 can do 2000mhz 7-8-7-24 around 1.68v. Pairing up modules #5 + #6 + #3 can do 2000mhz 7-9-7-24 at 1.62v and like lower vdimm over high vdimm.
First bench of modules 5 + 6 + 3, easily done at DDR3-2097Mhz 8-9-8-24 2T at 1.64v.
Not bad considering 12GB cost around AUD$396 or US$352
Any durability tests and maximal voltages tested, anybody ?
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Many thanks to: Sue Wu, Yiwen Lin, Steven Kuo, Vivian Lien, Joe Chan, Sascha Krohn, Joe James, Amy Deng, Jack Peterson, Hank Peng, Mafalda Cogliani, Marta Piccoli, Oliver Baltuch, Steffen Eisentein
I hope these are not the degrading cr*p from Elpida
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Many thanks to: Sue Wu, Yiwen Lin, Steven Kuo, Vivian Lien, Joe Chan, Sascha Krohn, Joe James, Amy Deng, Jack Peterson, Hank Peng, Mafalda Cogliani, Marta Piccoli, Oliver Baltuch, Steffen Eisentein
From testing individual modules #5 and #6 they don't like DDR3-2000Mhz 7-8-7-x at all, while module #3 can handle 7-8-7-x but needs higher QPI/DRAM and vdimm voltage than modules #1, #2 and #4. So decided to see how high Kit 1 with modules #5 + #3 + #6 can go with 7-8-7-24 1T timings. I found the following from using memtest86+ v4.0 and HyperPi 8x32M tests:
With same tFAW = 34, B2B = 4 and DDRAM Data/CTRL VREF A/B/C tweaks as my 8-9-8-24 tests, I managed to get much less errors at DDR3-2000Mhz 7-8-7-24 1T. With tweaks around 50-65 errors, without tweaks = 10000s of errors in memtest86+ v4.0.
But as modules #5 and #6 like lower than 1.64v vdimm memory voltage, couldn't get DDR3-2000Mhz stable.
The highest I could go for memtest86+ v4.0 and HyperPi 8x32M was DDR3-1960Mhz 7-8-7-24 1T at 1.62v.
Testing CAS6 clocks, with 6-7-6-24 1T at 1.62v max memory frequency came to DDR3-1720Mhz (860mhz), but loosen tRCD from 7 to 8 and max memory frequency jumped to DDR3-1900Mhz 6-8-6-24 1T at 1.62v!
George A-data sent you those or you bought them ?
If the answer to the second part of the question is yes, then it's definitely using different chips if not binning as well.
A-data told me that these kits are due for release in a week/2 weeks, if that info is correct, then I think they should change their model number to separate them from the older DDR3-2000X kits.
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Many thanks to: Sue Wu, Yiwen Lin, Steven Kuo, Vivian Lien, Joe Chan, Sascha Krohn, Joe James, Amy Deng, Jack Peterson, Hank Peng, Mafalda Cogliani, Marta Piccoli, Oliver Baltuch, Steffen Eisentein
It paid off to individually test all 6x 2GB A-Data 2000X modules and sort out the problematic module #3 as now it's sorted out, clocking 12GB - 6x2GB config is so much easier, straight into 12GB A-Data 2000X @DDR3-1702Mhz 6-7-6-24 at 1.62v. Kept CMD Rate at auto for 2T just for starters.
Stable for Super Pi 32M at least. Need to work on HyperPi 8x32M tommorrow