Memory Overclock Help

[agulerer]

Hi,
System Specs:

3930 K @ 4.3 GHZ
RAMPAGE IV EXTREME
GSKILL 1866 CL9 4 X 4 F3-14900CL9Q-16GBZL
ZOTAC 590

I am trying to OC my rams but I cannot. It gives error on prime 95 and intel burn test. I overlock my cpu to 4.3 GHZ @ 1.31 VCore. VCCSA 1.26V. DRAM 1.5V. now.

When I give 1.65 V and set 2133 MHZ with 10-11-10-32 it gives error. How can I OC my rams?

 

[redduc900]

Just curious as to why you'd want to run RAM that's rated for DDR3-1866 and CL9 at DDR3-2133 w/ considerably looser timings and more voltage?

 

[agulerer]

Ofcourse I tightened timing. I gave 1.65 V with 2133 MHZ at 10-11-10-32 timings. But IBT gave error. Maybe it is about I oc my cpu and cannot oc memory.

 

[agulerer]

bump

 

[Woomack]

set stock cpu clock and try
2133:
- 10-11-10-32 1.70V
- 10-11-11-32 1.65V
- 11-11-11-32 1.65V
when you make it work you can try
2400:
- 11-12-12-32 1.65V
- 11-13-12-32 1.65V

Check cpu + memory overclock together after you will be sure that memory is stable. It's all based on ratios so cpu clock shouldn't affect memory overclocking ( or at least not on 4.x GHz )

 

[agulerer]

What do you think is it possible to OC cpu and memory together?

 

[voodoo do'er]

TBH I'd just go for the best timings you can get.
I find tight timings win vs high speed.

 

[agulerer]

Understood but I read a lot of test and see that 2100 cl10 is better than 1866 cl9. And also I want to oc my rams to higher speed. What do you think is it possible to cpu and rams together is possible?

 

[Woomack]

It all depends on which platform are you tweaking memory ... sometimes higher clock is better ( like on latest Intel series ) and sometimes tighter timings and lower clock ( most older series and about anything on AMD ).
I would try to make it run @4.5GHz cpu and 2133 memory but probably you will have the same memory performance on 1866 9-10-9 as on 2133 10-11-10/10-11-11.

Run fast test like Maxxmem to compare results and check if it's worth it ( look more on memory read and copy ). Better is to check it yourself than base on random ( often not really good ) opinions.

X79 has 4 channels so max bandwidth is already high and what you may need more is faster access to memory.
I won't tell you details as I don't have X79 system and nothing to check right now.