CQ61-319WM and AC twin memory RAM speed

I bought the CQ61-319WM with / 3 GB or RAM.  The provided configuration is a badly matched set of a 1 GB SODIMM (A-Data) and a 2 GB SODIMM (Samsung).  According to CPU - Z 1.54, both pieces is 400 MHz (DDR2 - 800 MHz), latency CASE 6-6-6-18-24 and according to Memtest86 + 4.00, the result is speed of the RAM of 3481 MB/s using 64-bit transfers (single channel access).

Upgrading to a configuration usually total memory dual channel results in a good Speed up, I decided to replace the 1 GB SODIMM with another 2 GB.

I had a piece of 2 GB to another previous project, but it was a version special high speed with latency CASE of 5-5-5-18-23.  I decided that a pair of them so completely taken over would be the best that I could reach, so I bought a second piece (about 80 $ CAN) and put them in.  I've also upgraded the BIOS F.13 (and my Memtest86 + 4.10).

The result is better, but not as good as it could be.  Reports of CPU - Z full CASE 5-5-5-18 is used and I think it's saying that the dual channel is active (or he's saying that the RAM can support double channel - I am not sure).

Memtest 86 + (4.00 and 4.10 versions) indicate that the CASE has indeed changed to 5-5-5-18, but that access is still 64-bit (single channel) and the speed of RAM increased to 3614 MB/s.

3614 MB/s is faster than 3481 MB/s, it is not as fast as I expect 5-5-5-18-23 memory to be if it is currently running dual channel (128-bit access).

I believe that the BIOS has probably decided to stay "single channel" because the RAM is in a configuration that was unexpected (because the latency CASE is too fast).  However, this probably means that if I buy another piece of 'standard' 800 MHz DDR2 (CASE 6-6-6-18-24) and install it with the original Samsung RAM, it will probably run at full dual channel (128-bit).  Such a configuration should be faster than what I'm running now, despite the fact that the RAM by piece real speed is slower.

Anyone used this RAM (2 x (2 GB, 800 MHz, CL6)) the installation program?  Can anyone confirm that the result is a configuration complete dual channel?  I can buy the RAM, but if she does not run dual channel, so it's just a waste of money.

Note: It would certainly NOT let fall to the bottom as for two-channel to 667 MHz.  Such a decline would result in approximately 2600 MB/s even double channel speeds up access.

I heard generally good.  Curiosity prevailed, and I bought one more piece of RAM.  This piece has been another 2 GB DDR2 800 MHz SODIMM, but this time with the same latency than the original equipment numbers (CASE 6-6-6-18-24).  I installed it with the original Samsung CQ61-319WM and speed of memory that result was exactly the same as the pair (CASE 5-5-5-18-23) faster RAM.  The computer has finished 3-pass of Memtest86 + 4.10 as the fastest pair of RAM, confirming also the speed.

This tells me that the speed increase had nothing to do with issues of latency, and she had to come from the increase in speed of access memory (128-bit) 'Dual Channel '.

As to why Memtest86 + 4.10 is reported as "single channel", I feel that the answer may have to do with the RAM 'Side Port' CQ61 graphics system.  According to published specifications, this computer has 128 MB GDDR2 (and memory).  It does not say how this memory is configured.  If it is the only channel (128-bit), then it could be that Memtest86 + sees.

To confirm this, I took the pair of quick latency RAM and put it in another computer that uses an older AMD 690 chipsets, and the same pair of RAM ran in dual channel mode on the other computer, but at a lower speed of 667 MHz.  Therefore, it seems that AMD memory controllers have probably no problem with this pair of RAM running in dual channel in general.

While nothing that I've done is quite conclusive, indicates that this computer was probably working with access memory dual channel for two configurations of 4 GB RAM I used.

In any case, I'll leave the slower RAM in the computer because whenever I change my configuration of memory, I have to lose more than 3 hours running Memtest86 + to check it's OK.  If I did not need to get an acceleration, I will use the faster RAM later in something else.

There might be a reason to use the best of the RAM (which is probably more recent technology and probably using a little less power), but I don't want to spend more time on this issue.

Tags: Notebooks

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    glgpu [0] .extension [AIF::OGL:GL_ARB_TEXTURE_RECTANGLE] = 1

    glgpu [0] .extension [AIF::OGL:GL_ARB_TEXTURE_FLOAT] = 1

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    Install TWAIN devices: NONE

    Could you please rename the Photoshop CC 2015 preferences and try again.

    Please see the following article: preference file works, names, places | Photoshop CC 2014

  • Is RAM speed issue?

    Introduction:

    Hello, I ran some tests today to see if RAM speed really makes a difference when it comes to After Effects. In short, my conclusion is that, no, it makes no difference. At least not for the type of project I tested it with. Here are my conclusions, but first of all, my system specs.

    System Specs:

    Intel Core i7 - 3930K (4.3 GHz OC) cooled water

    120 GB Sata II SSD for the OS and programs

    256 GB Sata III SSD for the files of project and after effects of Disk Cache

    16 GB (4x4Go) Corsair Vengeance RAM (hourly stock are 1600 MHz @ 8,8,8,24)

    1 GB Nvidia GTX 460 SE

    Test project:

    The project involved 6 AVCHD videos played simultaneously and a few very basic effects such as corner pinning and cc removal of thread. The after effects memory and multiprocessing settings were as follows. 5 GB reserved for other programs, 2 CPUs reserve for other programs, 2 GB by heart.

    Results:

    1333 MHz, 12, 12, 12, 24 @ 1.57V

    Render time: 03:22

    1333 MHz, 7, 7, 7-24 @ 1.6V

    Render time: 03:17

    1866 MHz 9, 9, 9, 24, @ 1.57V

    Make the timer 03:14

    1866 MHz, 12, 12, 12, 24 @ 1.57V

    Render time: 03:19

    2133, 12, 12, 12, 24 @ 1.6V

    Render time: 03:15

    Conclusion:

    So, in my tests, I found that RAM stpeed is not really play a big role in this situation. However, after thinking about this a bit, I realized that this is probably due to the fact that my RAM must load data from and data dump to my SSD in this project. Even if my SSD is able more 500 MB/s had R/W, it is still not even remotely near speed, were one of these RAM speeds.

    So my question to you all is then as follows, can you recommend a type of project with effects that will mainly use the RAM without having to access my SSD? While my tests show a good example of 'real world' of the effects of the speed of the RAM, they do not show the full picture. With your recommendations, I'll create a new project that will best contribute to the effects of the speed of the RAM and add these conclusions about it.

    Yes... just a little space to fit... you could literally get 8 + of my tricks inside of your and still have room.

    In any case, I did a few tests more and discovered more interesting things on the search for the best speed of RAM.

    Test project

    Just a rubix cube in rotation with 6 iterations of keylight to key of all colors. The AE memory and multiprocessing settings were as follows: 5 GB reserved for other programs, 2 CPUs for other programs, 2 GB by heart. See original post for the specifications of the system. NOTE: I increased the frequency breaks through a little following GHz 4,427 during this test.


    Results:

    NOTE: Purged of the means I have "purged all" immediately before you click the record button.

    24 999 1553 (32.839ns total latency)

    Purged of time 1: 03:37

    Time without purge 1: 03:15

    Time without purge 2: 03:22

    24 999 1864 (27.360ns total latency)

    Purged of time 1: 03:51

    Time without purge 1: 03:03

    Time without purge 2: 03:08

    Time served 2: 03:09

    22 999 1864 (26.287ns total latency)

    Purged of time 1: 03:41

    Time without purge 1: 03:08

    Time without purge 2: 03:07

    Time without purge 3: 02:48

    Time served 2: 03:12

    2174 12 12 12 24 (27.599ns total latency)

    Purged of time 1: 03:45

    Time without purge 1: 03:20

    Time without purge 2: 03:18

    Conclusion:

    These figures all seem to be pretty conclusive that the most important part for After Effects displays must have the total latency as low as possible. So if you're in the market for RAM, get some will give you the lowest total latency, even if it means the passage with the 1600 MHz RAM on the 2400 MHz RAM. The argument according to which the higher latency will consist in transfer rate does not appear to apply here. In fact, it makes sense because a single address in RAM should contain nearly 500 MB for just a difference of 8ns in total latency. (Actual capacity of a single address is probably considerably smaller than that. I sent an email to Corsair to know what the maximum capacity. I'll post here again if they ever come back to me). So in the example above, where cpachris can run either 1600 MHz to 24 777 or to 10,11,10,30 2133 MHz, it would be MUCH better off running at 1600 MHz.

    Other important details:

    Intel says that the speed of RAM they recommend is 1600 MHz (Haswell of 1866 MHz however). I think it's because the hearts intel (at least those I did research) have a clock (bclk) standard base of 100 MHz. everything is based on this bclk. Your CPU frequency is generated by multiplying the bclk by a number. So for 4.4 GHz would multiply you a bclk to 100 MHz by 44. Pretty simple. RAM has now (I think) a multiplier locked which has the value 8. 100 MHz x 8 = 800 MHz, multiplied by 2 for Double data rate (DDR), which means, gives you 1600 MHz. If you try to set your frequency high that WITHOUT changing the bclk then you RAM may very well be running at 1600 MHz, just with worst timings.

    Now, if you were to increase the bclk for 116.625 your RAM frequency would become 116.625 x 8 x 2 = 1866. The tests I ran support this. In the original post, I had my bclk of 100 MHz (RAM max of 1600 MHz frequency). This test showed that, if I went more than 1600 MHz there is no advantage. In the next round of tests, I tested only the values min and max for those who do not give a picture complete. In the last test I boosted my bclk to 116.5 who gave me a RAM of 116.5 x 8 x 2 = 1864 MHz frequency. It is at this frequency that I gave my best results. So, if you use valued at more than 1600 MHz of RAM I encourage you to try to increase your bclk to where it corresponds to the frequency of your RAM and then run tests to see if that makes a difference. I'll go back and try to run the same tests with 1600 MHz to see where that falls to help support or defeat my argument.

    If someone objects to my statements above, please comment and let me know why so we can understand this stuff. All my findings are based only on some readings I've done and what my test results show.

    EDIT:

    I just ran some tests more and got subsequent synchronizations during execution of 1600 MHz at the time 8,8,8,24.

    1st series of tests:

    1600-888-24 (latency total 30ns)

    Duration: 03:14

    2nd series of tests:

    1600-888-24 (latency total 30ns)

    Time:05:34

    The time difference between 1600 and 1866 enforcement was minimal. It was exactly the same time for the first test and the time of 1600 in 4 seconds slower than the calendar of 1866 came. Compare the differences to run the same tests AFTER increase the bclk and this discrepancy increases to 15 + seconds. (by only comparing tests performed to the highest cpu frequency because that plays a very important role in the performance).

  • After making Effects CS5 with 48 cores and 96 GB of RAM

    My company is trying to set up some new machines for our render farm. Currently, we see a system with 4 12-core CPU and 96 GB of RAM. Theoretically, this would mean that After Effects would make 48 images at the same time, but I've never heard of someone AE running on this number of cores. Someone saw on whether or not it would work well?


    TYAN S8812WGM3NR Quad Socket Motherboard, G.SKILL Ripjaws Series 4 GB 240 pin DDR3 1333 (x 24), processor AMD Opteron 6172 Magny - course 2.1 GHz 12-Core (x 4), Adobe Creative Suite 5

    Here's what one of the After Effects testers said when I showed him this thread:

    «Works on 8 background process does not show a substantial gain based on tests on [our beastly machine].» In some cases, it was a little slower with > 8 background processor for simultaneous rendering of several images of multiprocessing. Given the size of small size that they are rendered and the degradation of performance running too many carrots, I think that their proposal would be overkill, unless they also use other memory-hungry apps on it.

    I think that they would get for their dollar better performance with a basic machine 24 or 32 GB 8-12, definition of the background processor to 3 GB allowance. Spend the extra bucks on processor speed + speed of the bus with fast disks.

  • 11 - inch MacBook Air can move 16 GB memory ram?

    Can a MacBook Air 11 inches go to 16 GB memory ram?

    If this is not the case, what Macbook can go up to 16GB of memory ram?

    I prefer to buy the cheapest and then buy my own ram put in me, but I've heard some macbooks now, you cannot install your own memory, must come installed in the factory.

    It is not possible to update the RAM after purchase on a MacBook Air, MacBook Pro with Retina display or a MacBook 2015 or newer. Click here for the list of possible RAM maximum for each Mac model.

    (144574)

  • 15ce156nr: usable physical memory (ram available)

    my laptop has 6 GB of ram and boot manu specification, it shows only3.89 GB of ram is usable. .. Why?... .pls SNA...

    Hey @rohan_vachhani5,

    Before I provide documentation of troubleshooting, I would like to take a few minutes to welcome you to the community of Support HP, where you can ask questions, find solutions and get help from others in the community! I read your post on the Forums of HP Support and wanted to join you and help with the RAM problem you are experiencing.

    Is your computer slow?

    Have you downloaded games or applications that use a lot of memory?

    Are - what you got to update the RAM at all?

    Do you have only a chip in your laptop?

    If this isn't the case, have you tried to remove one of the RAMs, from your PC and see how much that says they are?

    I did some research for you and found that this is not abnormal. Of course, the process in the background, the operating system, the behind the scenes things generally use memory to make sure that you use Notepad with ease. Although it is not affiliated with HP, I found an article that explains the differences betweengood and bad use of RAM /.

    If your laptop computer experiencing slow system performance problems, here is a document from HP called solve system performance (Windows 8). You can use this document to go through the troubleshooting steps to help eliminate some of the problems of memory.

    Here is another document, that you can use to test memory. This document is called laptops HP - Test memory tests memory with BIOS.

    This answer doesn't solve your problem or answer your question? If so, please share the good news! Inform others that this answer was helpful by clicking on the button accept as a Solution . You can also show your appreciation by clicking thumbs-up.

    If you need assistance, I would be more than happy to continue to help you. Please re-post with the results of troubleshooting, answers to the questions above and your model number (How can I find my model number or product number?). This will allow me to get the specifications of your particular laptop.

    Thank you!

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