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Thread: Device Manager - Unknown Device after MB drivers install




  1. #21
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Quote Originally Posted by parsec View Post
    Do you mean shrink, or expand? You said you have 14GB of OP space, and Samsung suggests 23GB, so you would increase it by 9GB from 14GB to 23GB, not shrink it, correct? Or, do you mean shrink the large partition down by 9GB... that's what you mean.

    I would not worry about that OP space to much, unless you plan on filling that SSD up as far as you can.

    Sleep works fine with my Samsung 830's. Besides setting any Sleep settings in the BIOS to "S3" (sleep, S4 is Hibernate) there is nothing you can set on a SSD to enable Sleep. Sleep saves the desktop/OS state to the PC's memory, so writes nothing to any drive. Hibernate writes it to disk. The so-called Hybrid Sleep does both, uses memory and writes to disk, in case of a power loss.

    IMO, Sleep fails due to other things, like the mother board and PS. If a PC fails to Sleep, or really wake from Sleep correctly, it doesn't matter what drives you are using, at least in my experience.
    Sorry about the confusion. I meant Shrink the large (C:) partition by 9 GB. I don't plan on filling up the SSD at all. My current desktop system has a total of about 100 GB on it. I would expect that when I cross over to the new SSD system I won't have even that much as there are a bunch of programs and utilities I put on the old system which I don't use, or use very infrequently.

    I think the other Sleep setting, other than the BIOS, would be in the power scheme options in Win 7. Is that correct? I currently have that set to Never. Anything else I should look for?
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  2. #22
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    Default Re: Device Manager - Unknown Device after MB drivers install

    The Sleep setting in the Windows power profile, that you are talking about, is simply an automatic Sleep setting for the PC when it is idle for a period of time. Besides the BIOS, there is nothing else to set to enable the functioning of Sleep.

  3. #23
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Reread post #14 where I said: 256 billion divided by 1.074 = ~238.4 GiB
    From drive manufacturers, 1 billion (10003) = 1,000,000,000
    In computer binary format, 1 GB (aka GiB) = 10243) = 1,073,741,824 bytes which is ~7.4 % greater than one billion.
    256 billion divided by 1.074 = ~238.4 GiB
    Formatting a drive uses very little space, even with multiple partitions.
    As far as I know, all storage media has very little reserved space for "bad blocks" or for a hidden reserved hidden partition.

    My former o/s 60GB ssd (actual 55.866 GiB) had slightly less than 10GB of free space according to windows.
    Performance was randomly sluggish for brief moments probably because of the "free space" required by the ssd.
    The ssd performance had been very consistent for almost two years.

    If you have no overprovisioning space with your ssd, I think that the performance would be fine unless you filled the ssd to more than ~90% of its capacity. It seems to me that setting aside a reasonable amount of o/p space ensures that your ssd performance won't degrade prematurely over time as the memory cells' program/erase cycles reaches their rated limit. The part that I don't fully understand is why having a larger o/p space increases the useful lifespan of an ssd.
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  4. #24
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    Default Re: Device Manager - Unknown Device after MB drivers install

    OK, thanks to all for all the info. My poor brain is now so overloaded with data that the few remaining brain cells I have left are screaming for a rest.

    Since I've already created this 13.5 GB Unallocated space I'm going to just leave things as they are. Some space should be better than none, right? One thing that just turned up was Windows 7 Updates just showed an optional update for a Intel - Other hardware - Intel Management Engine Interface. I know I installed the ME driver during setup so I'm kind of wondering what this is for. Not much success Googling it so if anyone has any info on it I would appreciate hearing about it. It does say optional so I don't know whether I need to install it.

    Time to just start enjoying the new system! Again appreciate everyone taking the time to respond. Without forums like this it would be scary trying to get everything setup and running properly.
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  5. #25
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    Cool Re: Device Manager - Unknown Device after MB drivers install

    Leave your current over provisioning setting alone for now and help preserve your remaining brain cells.
    As long as your ssd is nowhere near full, you'll be fine.
    Check with windows Device Manager to see if there are any "other hardware" icons with a yellow mark that need attention.
    That caught my eye. So the 256 GB SSD which is actually 238 GB formatted uses 18 GB "reserved" space? Is any of that allocated as OP space? Or, is the "256 GB" number still a marketing deception from the manufacturer even on a SSD? Man, this is confusing to me.
    No, the "missing" 18GB has nothing to do with reserved space or over provisioning space.
    256 GB of real space is equal to the 238.4 GiB of space reported by windows and many programs.
    The first number is the decimal size and the second, lower number is the size used by computer programs.

    At the risk of destroying your remaining brain cells, my next post will help clarify things or send you completely over the edge.
    Glad to help out.
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  6. #26
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Device Manager - Unknown Device after MB drivers install-samsung-830-ssd-info-samy1_128gb_p35_1boot-hex-editor-neo-_05-png

    note:
    The 640 GB hard drive's size is reported as 596.17 GB (really GiB) which is ~ 7.4% lower than the manufacturer's rated size.

    Check out http://forums.tweaktown.com/gigabyte...tml#post383199, post #44 to see how hard drive performance is improved when partitions are 4-K aligned. For optimal performance, each partition must be 4-K aligned.

    Windows 7 Disk Management automatically creates new partitions on a 4-K boundary.
    Some or most 3rd party partition management programs might not automatically align partitions on a 4-K boundary when you create, shrink, expand, or move a partition. Partitions created under earlier windows versions probably are NOT 4-K aligned.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  7. #27
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Uhm, about your question on the Management Engine update, given you already have one version installed, it is not critical that you update to the new version. The only thing you could check is the download page for your board. If they now have that version listed, you might consider updating to that version. It's not a big deal to download and run the update, which should cause no problems afterwards. Nothing to adjust in the BIOS for it, and it is not related to your I/O system or performance.

  8. #28
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Quote Originally Posted by highcountryrider View Post
    That caught my eye. So the 256 GB SSD which is actually 238 GB formatted uses 18 GB "reserved" space? Is any of that allocated as OP space? Or, is the "256 GB" number still a marketing deception from the manufacturer even on a SSD? Man, this is confusing to me.
    Yes that is correct, The Flash RAM only comes in 2^x sizes *They* take advantage of what the spindle manufacturers are doing and calling it "256GB", the real 7% lost is to internal over provisioning.

    For instance the ocz vertex 4 256GB has 16 x 16GB (2^34) NAND (M2502128T048SX22) chips.
    A lot of people make the mistake that there is no over provisioning, as OCZ was tricky and hid the over provisioning in the difference between 1024 bytes in 1K and 1000 bytes. we've got so used to seeing less in windows that no-one even questioned it.

    Memory chips are not like platters, platters are digital representation on analog magnetic media. Magnetic Media does not need to be in a matrix for addressing, where RAM of all types do. Which is why we never see 7.45 GB of RAM lol.


    Syn

  9. #29
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Forgot one thing...

    Incidentally, the old "style" 240GB was 16x 16GB as well. Which included 1x16GB over provisioning (up front and honest.. how about that?!?!) So windows actually saw 240GB
    With the *new* way, they make you think you have 16GB MORE, but actually have 2GB less seen at the file system level lol. But exactly the same amount of hardware.

    THAT'S MARKETING!! hehe


    Syn
    Last edited by synack; 10-22-2012 at 10:11 AM. Reason: grammer

  10. #30
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    Default Re: Device Manager - Unknown Device after MB drivers install

    Quote Originally Posted by parsec View Post
    Uhm, about your question on the Management Engine update, given you already have one version installed, it is not critical that you update to the new version. The only thing you could check is the download page for your board. If they now have that version listed, you might consider updating to that version. It's not a big deal to download and run the update, which should cause no problems afterwards. Nothing to adjust in the BIOS for it, and it is not related to your I/O system or performance.
    Screen shot below shows the optional Windows Update available. As you can see there is no version information available. Is this a driver update or software update? As stated I can't seem to find much information about this update.

    Device Manager - Unknown Device after MB drivers install-win_update-jpg
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