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Thread: Corsair Vengeance and Voltage

  1. #1
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    Default Corsair Vengeance and Voltage

    Alright, I've been playing with my new system and I have lots of questions and not enough time for everything. I have 16gb (4x4) Corsair Vengeance ram rated at 1866mhz, timings were 9-10-9-27. When I was playing around I went ahead and tried overclocking to the timings of some much more expensive corsair dominator ram. I got my frequency to 2133 and only had to loosen my timings to 9-11-10-27. I didn't have any crashes and was able to run some short prime tests once I upped the voltage to 1.7 from the rated 1.5 setting.

    Questions, First is 1.7 safe for overvoltage? I've since dropped back to stock because I'm sure the performance isn't that big of a deal and I want to be safe.

    Second, I know the first timing is cas latency. I also know lower timings in benchmarks = better performance, but what do the last three numbers do for practical performance? My simple concept is that the timings represent delays, so of course, the less delay for communication, the faster the performance. I'm still researching though and having trouble finding the solid answers I want.

    My main applications are games so I'm sure I won't know any difference, just cool to have higher timings if I can, and know which timings, if any, are more important than others. I've heard of using pcmark to benchtest similar to gaming applications to find what is best for what I'm doing. I plan on going there but want to stay safe while experimenting. First time overclocking ram so it is a little new to me, but still fun!

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    Default Re: Corsair Vengeance and Voltage

    1.7volts is a little on the high side.. normally AMD boards they don't want you to go over 1.6volts. At 1.7volts the RAM can get quite hot... Do you have any cooling for it??

    However with that much ram the extra freq isn't going to make that big of a real work use performance increase.. you are really only going to see that in benchmarks IMO.. while the system may have a little more Umpth to it.. IMO, its not worth running them that high and risking failure..

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    Default Re: Corsair Vengeance and Voltage

    Ok, that helps a lot. I kept trying to find the voltage from the memory side not the motherboard side. I opened up the case and felt the heat spreaders and they were only slightly warm toward the base and still pretty cool towards the top, but I only ran a test for a half hour and the test was still heavier on the cpu. From the user side, I couldn't tell any difference between the two frequencies. Also found out that timings represent the actual number of calculations as well, which would still add up to a delay overall.

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    Default Re: Corsair Vengeance and Voltage

    Ok, so I found a corsair blog and they were pushing their overclocks to 1.65 volts. Next question...I've heard that ddr3 caps at around 1600mhz and after that the frequencies give mere nominal performance boosts. I also saw that generally speaking, users prefer tighter timings over higher frequencies. I'm wondering if it would be fun to drop my frequency on this ram to 1600, and with a little extra voltage, if I could really tighten up those timings?

    I figure if anyone's experimented with that, they can let me know, but if not, I'll start experimenting and let you know what I find out.

    Btw, what is your favorite memory testing program?

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    Default Re: Corsair Vengeance and Voltage

    Generally speaking most Corsair Ram is sold at 1600mhz, at least all the ones I have are 1600mhz.
    And you are correct. Anything above 1600mhz will not be noticeable in real world application. However only really seen in benchmark data.

    Tighter timings are good and from my experience, Corsair already has the timing rather tight at 1.5volts. I rather try to tighten the timings at 1.5volts. Raising the 1.65volts isn't going to give you much more of gain compared to the 1.5volts that most Corsair DDR3 ram already at.

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    Default Re: Corsair Vengeance and Voltage

    My Corsair Dominator GT RAM is running great at 1.5v, 1866Mhz, 9-10-9-27-33-1T timings. Could probably tighten the timing a bit more if I dropped down to 1600MHz but I figure I have a nice compromise between timing and frequency were I'm at now.
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    Default Re: Corsair Vengeance and Voltage

    Yeah, that was a fun learning experience, but yeah, back at stock frequencies. I just don't have enough head room in my ram to justify overclocking. I can up it to 2133 easy enough but I have to loosen my timings quite a bit just to get stable, and that's without doing a thorough memory test to make sure. Just wasn't worth it, and quite frankly, for how much corsair brags about overclocking, I'm a little disappointed with the head room, but not with overall performance. The ram still works great.

    By the way Sam, what is that 33 number in your timing specs? I think I know what it is, looking at my bios last night, I think my number was set at 45 on auto, but I wanted to check to be sure that I couldn't maybe tweak that to work better with my other timings. I do have my ram set to 1T as well.

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    Default Re: Corsair Vengeance and Voltage

    LOLZ

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    Default Re: Corsair Vengeance and Voltage

    Corsair Vengeance Pro 1866 in my case.
    1.5V is std with 9-10-9-27-2T timings. I turned it up to 1.55V and adjusted timings to 9-9-9-27-1T. Works great.

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