Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Benefits of Win7 64 bit & memory requirements

  • 06-09-2011 2:59pm
    #1
    beer enigma
    Registered Users, Registered Users 2 Posts: 6,213 ✭✭✭


    I'm fishing here as a friend has asked me to look at a system spec he's been sent for a new cctv security system

    Its to run 64 cameras & uses a Geovision GV-1480 16 port combo video card which I believe is made for the cctv market. The suppliers are suggesting win 7 64bit with only 2Gb ram & I'm wondering, why the 64bit system & should there be more ram on the system ? also bit worried at a dual core cpu...

    any ideas lads ?

    Full spec is:

    INTEL CORE 2 DUO E8400 3.0GHZ LGA775 FSB
    DDR2 PC800 2GB MEMORY MODULE
    SATA DVD RW BLACK BEZEL
    MS WINDOWS 7 PRO 64 BIT OEM
    GEOVISION GV-1480 16 PORT COMBO CARD
    PS2/USB KEYBOARD SYSTEM BUILDER
    PS2 OPTICAL MOUSE SYSTEM BUILDER
    GENERIC MOUSE MAT
    SEAGATE 2TB SV 3.5" HDD (1)


Comments

  • #2
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 14,012 ✭✭✭✭Cuddlesworth


    Would he not need four GV1480's, at 16 inputs a piece? Otherwise he should be fine, cards will do most of the work. Decent hard drive will be needed for recording 64 inputs.


  • #3
    PogMoThoin
    Closed Accounts Posts: 13,874 ✭✭✭✭PogMoThoin


    If the software supports 64bit then go with it, it will be better supported than 32bit soon. Most new laptops with only 3GB of ram are shipping with it now. 32bit is pointless


  • #4
    beer enigma
    Registered Users, Registered Users 2 Posts: 6,213 ✭✭✭beer enigma


    Cuddlesworth wrote: »
    Would he not need four GV1480's, at 16 inputs a piece? Otherwise he should be fine, cards will do most of the work. Decent hard drive will be needed for recording 64 inputs.

    That's a question I have for him actually - unless it somehow multiplexes 4 cameras to one port, but that's not my understanding of it. Also, when the Video Card has done its work, it passed images to the hard drive - would it not benefit from a larger amount of memory, especially given that Win 7 64bit can handle it ?


  • #5
    stevenmu
    Moderators, Society & Culture Moderators Posts: 9,689 Mod ✭✭✭✭stevenmu


    For something like this I'd be inclined to stick exactly to the spec, the supplier should in theory at least know what works an what doesn't. For e.g. they may use software/driver that only run on 64bit.

    It would be tempting to up the memory a good bit, but I wouldn't unless you can get the supplier to agree on it.


  • #6
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 14,012 ✭✭✭✭Cuddlesworth


    Andip wrote: »
    That's a question I have for him actually - unless it somehow multiplexes 4 cameras to one port, but that's not my understanding of it.

    Then you would have four tiny images running at 176*120@30fps each. Worthless, you couldn't make out anything on them. GeoVision's are quite clear about what their card can and can't do.

    Andip wrote: »
    Also, when the Video Card has done its work, it passed images to the hard drive - would it not benefit from a larger amount of memory, especially given that Win 7 64bit can handle it ?

    Windows does little to no caching of active writes so I doubt any more then 1.5gigs is really needed and that's really for normal windows 7 process's. I would be more worried about a hard-drives ability to write 64 video streams at once.


  • Advertisement
  • #7
    stevenmu
    Moderators, Society & Culture Moderators Posts: 9,689 Mod ✭✭✭✭stevenmu


    Cuddlesworth wrote: »
    Then you would have four tiny images running at 176*120@30fps each. Worthless, you couldn't make out anything on them. GeoVision's are quite clear about what their card can and can't do.
    If multiplexing is used it would probably be time multiplexed, i.e. 1 frame from camera 1, then 1 frame from camera 2 etc. This is quite standard in security camera systems, but I'd imagine it's not great for compression.


  • #8
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 14,012 ✭✭✭✭Cuddlesworth


    stevenmu wrote: »
    If multiplexing is used it would probably be time multiplexed, i.e. 1 frame from camera 1, then 1 frame from camera 2 etc. This is quite standard in security camera systems, but I'd imagine it's not great for compression.

    Interesting, didn't think of that. I suppose its similar to what the camera is already doing, sharing 480fps between 16 inputs. 7.5 fps per feed isn't great, but view able.


  • #9
    beer enigma
    Registered Users, Registered Users 2 Posts: 6,213 ✭✭✭beer enigma


    Thanks for the input guys - the system he has at the moment is providing very poor quality despite top quality cameras & also tends to drop cameras for no apparent reason - he can have 25% of cameras offline at any one time which is ridiculous.

    The company that installed it can't fix it & have literally walked away from the job so the suppliers (not geovision) have stepped in and offered the spec I posted, so unfortunately confidence is not high. I've contacted geovision but nothing back yet so I just wanted to run it past you guys to see what you felt.

    As I say it's much appreciated


Advertisement