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post #11 of 15
Thread Starter 
So, what would be some good timings for me to try my RAM at? Also, when lowering timings do I need to adjust DRAM voltage to compensate?
post #12 of 15
Thread Starter 
Ok, I got my timings to 9-10-9-28 at 1.600V my ram is only rated for 1.500. I ran memtest86 and this seems to be the only settings that I can get with no errors showing. Sorry I'm still wet behind the ears when it comes to OC'ing RAM, lol. I can't seem to get anything under that. Any suggestions? Or does this seem to be where I should be at?
Edited by FrankBob6677 - 5/16/13 at 12:24pm
post #13 of 15
i personally will do 1.75-1.8v on ram if good airflow.
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post #14 of 15
Quote:
Originally Posted by damric View Post

i personally will do 1.75-1.8v on ram if good airflow.

With an avatar like that I believe you would lachen.gif
post #15 of 15
I have never had an issue running memory as high as 1.775v 24/7 or 1.875v for long bench sessions, and I run my RAM between1.65 and 1.7v 24/7 to get tighter timings @ 2442 9-11-10-26 1T (X79).
I would try to get the best speed you can with your RAM at around 1.65v, which could be anywhere from 1800 with good timings to 2000 withlooser ttimings, depending on your luck.

I am admittedly unfamiliar with the new "FX" chips and overclocking memory for them, as the last AMD chips I've worked with a lot have been the Phenom II X6 1100T & X4 960T. I found those chips to be far more sensitive to timings than overall speed, with the best performance coming in around DDR3-1876 7-9-7-16 or1748 6-8-7-16.
From what iI understand, you will be looking more towards higher frequencies for better performance, but it's always, regardless of the platform, best to keep the timings as tight as they'll go.

You want to focus first on getting the first 4 timings, aka the primary timings (ie "9-9-9-24") as tight as you can. Generally speaking, the first and third will be the most responsive to adjustments (or easiest to adjust), the second is highly dependent upon the exact IC's in your sticks, and the fourth should be something like the first + third - 2, but that's no longer a hard and fast rule.
The command rate (1/2N or 1/2T) is also important to switch, if possible, as running 1T is always better but isn't always possible, particularly with large DIMMs (8GB), or when all lanes are filled (ie 4/4 may require 2T, while 2/4 can do 1T).

Once you get these set along with the speed, you can eek some more performance out by fine tuning the secondary timings, and POSSIBLY the third timings. This This is a much more time consuming task, and one that is not for the faint of heart or inexperienced, but it can have a pronounced effect on performance in memory dependent tasks.
   
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LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
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2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
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4x Koolance 120x25mm 2600rpm Fans Comp/Rotary Fittings (BP/XSPC/Monsoon) Primoflex Pro LRT - White (1/2x3/4) Windows 7 Professional 64bit  
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