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I7 860 + DDR3 2000mhz (want lower CAS)

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August 9, 2010 6:40:39 PM

Dear reader: :hello: 



Since my latest build, I have not done a lot of overclocking. I set up my system, setup my OC, tested, checked daily temps, and have simply run the system since then. I'd like to look now into perhaps running my memory at a lower CAS or even lowering overall timings. For this, I'd really like a little input from the OC community before I delve too deep.

System overview:

* Win7 x64 Pro
* Intel i7 860 (@3800mhz) -- will repost BCLK etc on this once I have a chance to double check
* Asus Maximus III Formula
* 4GB G Skill DDR3 "Ripjaws" 2000mhz (stock speed) 9-9-9-27 1.65v
(CPU-Z specs in my sig for more)

As is, all memory voltages and timings are stock. The memory is 2000mhz, I'd like to see if I could run it at CAS8 or even 7. Anyone have recommendations, advice, experience? All replies welcome! :sol: 
a b K Overclocking
August 9, 2010 9:02:05 PM

You have to sacrifice somewhere.
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August 10, 2010 2:24:46 PM

In the spirit of helping, I'm hoping for a bit more information..

Sacrifice somewhere? Assuming you mean I can run 2000mhz or run lower timings, you are probably not far from the truth; however, an explanation--or more information---would really be nice.

Anyone have experience working with DDR3 2000mhz or perhaps the Asus Maximuss III board???
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a b } Memory
a b K Overclocking
August 10, 2010 2:45:31 PM

Try lowering the timings in the bios and test for stability it will either run at that speed or it won't.
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August 10, 2010 3:10:56 PM

Thanks, Simon. I agree, I've tweaked with it a bit--having trouble finding some solid timings--so I was just kinda hoping someone would stumble across this thread and say "Hey I tried ___ and it worked" ya know?

Tryin to remain hopeful ;) 
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a b K Overclocking
August 10, 2010 3:17:12 PM

lol you have to be hopeful.
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August 10, 2010 6:25:59 PM

As of now, none of my tests have yielded anything worthwhile. Under the advice of OvrClkr I started looking into boosting my CPU OC rather than hossing around with my RAM.

Currently stress testing 4.1ghz at 1.28v all good so far.
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August 10, 2010 8:00:41 PM

Turns out dropping to 4040mhz rather than 4100 spared me 4 degrees on my peak temp, so I'm callin it cool with 4ghz. Not bad for air cooling. I don't feel like messing with it much more for now. Holding here for the time being.
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a b K Overclocking
August 10, 2010 9:16:44 PM

Nice.
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Best solution

a b } Memory
a b K Overclocking
August 11, 2010 2:51:12 PM

yea if your ram starts to act up at lower timings I would just leave it alone. Ram that is rated at 2000Mhz is normally CAS9 with the exception of a few models that run at 8-9-8-24 or 9-8-9-25. Those Ripjaws are plenty fast at stock, it won't cause any bottleneck whatsoever when OC'ing the CPU.
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August 11, 2010 6:25:46 PM

You're right per usual, OvrClkr. Dicked around with my settings a ton, tried a bunch of new OC profiles -- kept blue screening in-game. Oddly it was doing fine with stress tests. Need to keep tweaking I guess. 4ghz passed stress tests, but blue screened in game...so I am back at 3.8ghz cpu and 2000mhz 9-9-9-27. Good enough is going to have to be good enough yah? hahah thanks for the help guys
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August 11, 2010 6:25:54 PM

Best answer selected by dirtdiver.
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a b } Memory
a b K Overclocking
August 11, 2010 7:07:48 PM

dirtdiver said:
You're right per usual, OvrClkr. Dicked around with my settings a ton, tried a bunch of new OC profiles -- kept blue screening in-game. Oddly it was doing fine with stress tests. Need to keep tweaking I guess. 4ghz passed stress tests, but blue screened in game...so I am back at 3.8ghz cpu and 2000mhz 9-9-9-27. Good enough is going to have to be good enough yah? hahah thanks for the help guys


don't even sweat it ;)  , 3.8Ghz is more than enough CPU power for ANY game. Your CPU at 3.8Ghz is basically the same as mine at 4.3Ghz give or take. I cant even max out my CPU utilization at 3.8Ghz when playing games, you will see more gains working with the GPU rather than your CPU at that clock.
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