G.Skill ECO PC3-12800 7-8-7 1.35v in the house!

[Mungri]

I cant keep mine 24/7 stable at 1900 though despite zero errors in 32m superpi, dont think its my ram but the IMC. 1866 cas 7 keeps going all day everyday, but limits my CPU overclocks.

It will also boot and run stable at 1600 Mhz 7-7-7 with just 1.43v, but I couldnt get 1600 9-9-9 stable at 1.35.

It does seem to be the same chips, maybe just that Geil didnt bin them for low voltage, but rather for the Cas 9 frequencies.

I wonder if Intel will ever do hex channel boards, would make a good next upgrade and I can keep using this ram.

Also for low voltage settings, I'm currently managing to run mine at 1866 9-9-9-27 at 1.5v and 1.35v QPI, just testing to see if I can get lower CPU temperatures with lower QPI (7-9-7 1866+ needed 1.4-1.45v QPI).

These older chips are great for their voltage scaling, you can set them up however you prefer, low volts and timings, or high volts and tighter timings. No difference to CPU temps with just higher Dram volts so I'll run 8-8-8.

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Ok, In my search for lower QPI volts, I've now got all the following 24/7 stable:

1.35v QPI / 1.51v Dram - 1875 9-9-9-27
1.35v QPI / 1.64v Dram - 1875 8-8-8-24
1.45v QPI / 1.67v Dram - 1875 7-9-7-24 (7-8-7 is only bench stable but Bsods after a while, same with 1900 Mhz).

Dont think I'm going to run 7-9-7 anymore, I knocked 3-4 degrees off my CPU with the lower QPI voltage.