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G.skill 2 x 4Go 2666MHz CL11 with GIGABYTE Z87


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Can you help me with my ram?


It is a 2 x 4GB kit G.skill @ 2666MHz CL11-13-13 35

-F3-2666C11D 8GTXD

I can not know what chip there above


This kit boot @ 2800 without changing anything but it is not very stable.


I would try to go up to 3000 + for 2D / 3D




My 4770K is not bad oc, it holds steady for 4.8GHz 1.28V.


In advance thank you



Edited by mcnico63
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Hi, these are most likely Hynix CFR ICs (sticks have ICs on both sides of PCB, SN Contains 0240 or 1400 ) - try to bump voltage a bit at 2800 11-13-13 or move to 11-14-13. 3000 will be hard, try to start with 12-14-14 or 12-15-15 and then tighten Timings if possible or raise voltage, this can vary on each special kit.

Edited by websmile
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If your modules are dual sided then they are based on Hynix CFR.

2666C11 rated CFR shouldn't have any problems running 1400MHz, might need up to 11-14-13 and 1.725V for that.

From what I've experienced so far, it's not easy to get full stability with CFR at 1466MHz so you might as well forget about your DDR3-3000+ plans.


EDIT: beaten by websmile, I am getting old :D

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