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Well I don't think I'm very lucky....at 2000MHz 1.6v it fails prime after a few seconds......at 1866MHz 11-11-11-28 it seems like its ok......... is there anything else I can try with same or lower volts?

What is command rate? Mine is saying 2T but most peoples say 1T???

Memoryat16v1866.png


Thanks for any help
 
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I don't understand a thing what to put in these timings, is there a general guide to memory overclocking the samsung green on a Asus z77 board?

I understand that for 4X4Gb RAM I need to up the voltage to 1.6V, but how do I increase beyond 1600Mhz please? How do I test for stability also, with CPU overclocking you have IBT and Prime, but how do you test for memory?

Sorry for the noob questions
 
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re 1.6V not necessarily true - depends on what speeds you are going for

I'm running 4x4gb Samsungs, in a Maximus Gene V Mobo, set to 2200 10-11-10

and I'm running them at 1.475V (about 1.49V actual)
 
majnu said:
I don't understand a thing what to put in these timings, is there a general guide to memory overclocking the samsung green on a Asus z77 board?

I understand that for 4X4Gb RAM I need to up the voltage to 1.6V, but how do I increase beyond 1600Mhz please? How do I test for stability also, with CPU overclocking you have IBT and Prime, but how do you test for memory?

Sorry for the noob questions
Click to expand...

Test for initial stability using mem test outside windows (Bootable USB is ideal). Then run Pi32mb inside windows to test initial windows stability then adjust from that.

After this run your usual stability tests like prime blend, aida, linx with full memory and general use such as gaming.

I will post up some exact settings I use on my ASUS Z77 MVG when I get home. Which CPU you using????

You can use Turbo evo and memtweak it from in windows to adjust settings further.

Link to memtweak it:

http://www.datafilehost.com/download-6760de90.html
 
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8 Pack said:
Test for initial stability using mem test outside windows (Bootable USB is ideal). Then run Pi32mb inside windows to test initial windows stability then adjust from that.

After this run your usual stability tests like prime blend, aida, linx with full memory and general use such as gaming.

I will post up some exact settings I use on my ASUS Z77 MVG when I get home. Which CPU you using????

You can use Turbo evo and memtweak it from in windows to adjust settings further.

Link to memtweak it:

http://www.datafilehost.com/download-6760de90.html
Click to expand...

Thanks appreciate it :) I have the Ivy Bridge i5 3570K.

I have a bootable USB, how do I exactly test memory stability outside of Windows?

I'll search and download Pi32mb to test memory stability within Windows.
 
Buckster said:
re 1.6V not necessarily true - depends on what speeds you are going for

I'm running 4x4gb Samsungs, in a Maximus Gene V Mobo, set to 2200 10-11-10

and I'm running them at 1.475V (about 1.49V actual)
Click to expand...

Would you mind sharing complete settings i.e. Screenshots of bios like 8pack previously did?

Trying for these settings with exact same setup.

Thank you in advance
 
8 Pack, can you confirm whether this statement is true or not:

maxoc_timings.jpg

There are two timings that are linked together that will help greatly in overclocking. When these two timings are not set correctly, overclocking will not be as successful, and long-term stability can be hard to attain without excessive voltage. The above picture shows the primary and secondary timings we used to reach 2400 MHz with 1.575 V.

The two crucial timings, of course, are CAS Latency, and Write CAS Latency.

For CAS 6 and 7, tWCL should be CAS -1 (so CAS 6 gets tWCL 5 and CAS 7 gets tWCL 6)

For CAS 8 and 9, tWCL should be CAS -2 (so CAS 8 gets tWCL 6 and CAS 9 gets tWCL 7)

For CAS 10 and 11, tWCL should be CAS -3 (so CAS 10 gets tWCL 7, and CAS 11 gets tWCL 8)

I mention this as tWCL is not a timing that is talked about very often, if at all. However, because it has proven itself as a critical timing during testing, it is something that I felt must mention.
Click to expand...
 
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Bobmunkhouse said:
Well I don't think I'm very lucky....at 2000MHz 1.6v it fails prime after a few seconds......at 1866MHz 11-11-11-28 it seems like its ok......... is there anything else I can try with same or lower volts?

What is command rate? Mine is saying 2T but most peoples say 1T???

Memoryat16v1866.png


Thanks for any help
Click to expand...

Hmmm even 1866Mhz with 1.6v prime fails...am I unlucky or doing it wrong....?
 
Rossi~ said:
8 Pack, can you confirm whether this statement is true or not:
Click to expand...

8 TWCL no matter what CL yeilds the most stable results evan with with PSC at say CAS 6 or 7. TWCL does help stabalise an overclock yes but to do this set 8 and be done. This value also effects performance very little but stability a lot!!!
 
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