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Help tightening timings

post #1 of 13
Thread Starter 
Hey guys,

So here is the lowdown, finally ditched my X58 system and did a new Sandy Bridge build. i7 2700k/ASUS P8P67 Deluxe B3/Gigabyte GTX 570 SOC.

I've got everything clocked very nicely aside from my CPU, which I will have to wait to push much past 4GHz until my DH-14 gets here. I'm running Mushkin Enhanced Redline Ridgeback 1600MHz that was rated at 7-9-8-24 1T @ 1.65V

My current clock is on these sticks is

1866MHz 8-10-9-24 1T @1.65V - Fully memtest86+ stable

My question is what is a good approach to tightening timings, or if you think these are acceptable? I feel like I could push these a little further... they are great sticks. This is my first real attempt at overclocking RAM, so apologies with the noobish demeanor. With my X58 I slightly underclocked to not exceed rated speed but with this wonderful unlocked multiplier (totally took the fun out of overclocking... but convenient), there is no need to adjust BCLK on Sandy Bridge CPUs. So I can do less guess and check and feel more confident diving into ram clocks.
post #2 of 13
What's with the timings ..are you running super PI ?,..try- 2133
run Maxxmem you will see what i mean
(you won't see much difference until you OC your CPU)
http://www.xbitlabs.com/articles/memory/display/sandy-bridge-ddr3_4.html#sect1
Edited by coolhandluke41 - 3/4/12 at 12:00am
    
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post #3 of 13
screw that, go for more gigglehurts before tightening it up mate thumb.gif


9-10-9-27 2133 biggrin.gif
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post #4 of 13
how to lower ram timings: lower the 4 settings cL,trcd,trp,tras) 1 setting at a time.one notch at a time .lower it..reboot..see if post..lower 1 more..reboot..etc..until you don't POST..then go back to the last one that worked..this will put you in the ballpark

He probably shouldn't go any higher on the frequency..because more voltage would be necessary..
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post #5 of 13
nah, if they will do cas8 1866 they should do 9 2133 on the same voltage, my lovos do biggrin.gif
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post #6 of 13
I'm going to have to get some of that mushkin ram
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post #7 of 13
Quote:
Originally Posted by marsey99 View Post

screw that, go for more gigglehurts before tightening it up mate thumb.gif
9-10-9-27 2133 biggrin.gif

if you can get this timings @2133 with no extra voltage - you have really nice RAM ,t
run Hyper PI to see if they are stable
Edited by coolhandluke41 - 3/4/12 at 11:19pm
    
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post #8 of 13
Thread Starter 
Running hyper pi now, oh my god.... same voltage.... 2133... 9-11-10-26. This was like the best 65-70 dollars I ever spent. thumb.gif

EDIT: Nevermind... couldn't run hyper pi without bsods or errors at 2133. So I'm just working on timings for 1866. I'm at 8-10-9-22 passing hyper pi so far.
Edited by killerhonky - 3/4/12 at 11:56pm
post #9 of 13
Thread Starter 
Quote:
Originally Posted by Schmuckley View Post

how to lower ram timings: lower the 4 settings cL,trcd,trp,tras) 1 setting at a time.one notch at a time .lower it..reboot..see if post..lower 1 more..reboot..etc..until you don't POST..then go back to the last one that worked..this will put you in the ballpark
He probably shouldn't go any higher on the frequency..because more voltage would be necessary..

O.o

Is it normal to be able to drop tras to 10.... and have it be stable?
1866 8-10-9-10 still at stock voltage. I can put up a screen if necessary.... passed hyper pi, and 10 lynx iterations with all ram allocated (I usually use 10 lynx iterations with half of my ram allocated for a quick stress test on cpu stability so I thought this may work?). Running prime95 blend for a at least 8 hours to be sure of stability. Am I nuts or does 10 sound incredibly low?
post #10 of 13
2282511.png

will run hyperpi in 2 secs but ibt (10 pass max mem) p95 (overnight) and occt all went fine on these settings, i was trying to run these settings on 1.31vcore but put it back to 0 offset and its sound.

killer that does sound tight but if its working fine dont knock it biggrin.gif
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