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Thread: booting from flash card faster than HD?

  1. #11
    Newbie Mr.Sinister's Avatar
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    Wouldn't setting the swapfile to another drive be sufficient, instead of writing a custom ATAPI.SYS?

  2. #12
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    Yes, that would help, but I am assuming that he is not going to have ANY hard drive in his system.

  3. #13
    Maximum Bitrate Marsupial's Avatar
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    Mister Six: Thanks for the info. I'd go in the same direction - I want an IDE flash drive. I'd get a 2 gig Flash IDE drive and install all required software.
    I need the Flash since our winters will kill most HDD you'll find, but still will get one 20 gig extended temp. HDD for data. This said, I would require to get the data drive to be optional.

    therefore, I would rely only on Flash IDE and memory.

    I plan on using win98se since I don't need anyof the XP's visual and its smaller.

    Wouldn't it be ennough to Disable the swap file and use 1 gig of memory (98 requires less then that if I'm right, no?)

    My question is the next: do I need to hack ATAPI.SYS or disabling the swap would be sufficent?

    also, how come its the ATAPI.SYS file... somehow I tough ATAPI was CD-ROM/ZipDisks..?

    How would we go for change it? can we hack it from the win98 boot disk???
    -Mars

  4. #14
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    Quote Originally Posted by Marsupial
    I need the Flash since our winters will kill most HDD you'll find, but still will get one 20 gig extended temp. HDD for data. This said, I would require to get the data drive to be optional.
    I am jealous, I have just the opposite problem, it gets too hot here.
    For your HDD I would recommend a removable tray based drive, that way you can take if out and not leave it in the cold car.
    Quote Originally Posted by Marsupial
    I plan on using win98se since I don't need anyof the XP's visual and its smaller.
    Well, your right, the hard drive space consumed by the Win 9x series is less, but I still wouldnt use any of them for an embedded application like this.
    The Win NT family (NT, 2000, XP) are all much more stable than the 9x family, I guess if your just playing music you dont really care if you have to reboot it now and then.
    Quote Originally Posted by Marsupial
    Wouldn't it be ennough to Disable the swap file and use 1 gig of memory (98 requires less then that if I'm right, no?)
    Yes, as long as you keep tht memory footprint of all combined applications and windows under 1 GB that should work as well.
    Quote Originally Posted by Marsupial
    My question is the next: do I need to hack ATAPI.SYS or disabling the swap would be sufficent?also, how come its the ATAPI.SYS file... somehow I tough ATAPI was CD-ROM/ZipDisks..?How would we go for change it? can we hack it from the win98 boot disk???
    Doing what your suggesting (no swap, big memory) would be better than mucking around with the driver (if you can guarantee that everything will fit in memory), actually, if my memory server me correctly, I dont belive you can implement a write filter driver with Windows 9x. ATAPI works with all IDE based devices.

    Chris

  5. #15
    Maximum Bitrate Marsupial's Avatar
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    Hey don't get me wrong, we get extremely warm during summer, but electronic components that overheat works better then frozen mecanical head motor

    I had a friend from pasadena coming a few summers ago, and she could not witstand our heat+humidity. Its not exactly warmer, but humidex kills us

    This said, I realised in another thread that 9x or ME can handle maximum 512 Mb of RAM. But another member is using ME with no swap file and it works great. I think that I'll use 98se with no swap file.

    I don't mind much for stability, as 98 needs reboot only once in a day or so, and even long runs are like 6 hours in the car before shutdown. I will not use hibernation mode. Always hated that.

    So I think I'll just flash the system with no swap and be fine with it.

    thanks for the info!
    -Mars

  6. #16
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    Quote Originally Posted by Marsupial
    Hey don't get me wrong, we get extremely warm during summer, but electronic components that overheat works better then frozen mecanical head motor
    Actually, they are both bad!

    One thing I kind of glossed over in all of this is that what you are trying to do is to avoid excessive writes to the flash hard drive, while the Windows swap file is certainly a big offender for this, it is not the only one....

    Most programs open some type of temporary files, or write to the registry.
    This could be a big problem with the flash drive.

    I suggest you use tools (like filemon and regmon at www.sysinternals.com) to check out whatever applications you are planning on running. Remember reading is fine from a flash hard drive, but writing is bad!! (Gross over generalization, but you get the idea).

    Chris

  7. #17
    Maximum Bitrate Marsupial's Avatar
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    Yes, but I do not want to rely on a frozen hard drive to get my carputer running in the morning. This winter, we had -25 celsius on a regular basis, before windchill. (-40 is not very warm for mecanical, but OK for electronics that does not move)
    I need devices with no mecanical parts.

    As far as I understood, the flash IDE drives are not as bad as the CF cards.
    -Mars

  8. #18
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    Quote Originally Posted by Marsupial
    As far as I understood, the flash IDE drives are not as bad as the CF cards.
    if by "bad" you mean how many write cycles they can perform before they stop working... then there is no difference.

    All of these devices CF / Flash Hard drive / Pen disks / etc. all use the same flash memory chips inside from the same group of manufacturers. Generally flash is rated for 100,000 write cycles, however it is not uncommon for them to far exceed that!

    I remember one device that I created that I was accidentally writing to the flash on a continual basis, the flash lasted about 6 seconds! Oops!

    Chris

  9. #19
    Constant Bitrate GRUNT's Avatar
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    How do "DiskOnChip 2000" Drives, compare to Flash media?

    Was thinking of using one on my SBC system I'm planning, and my epia 800 has the
    socket for one.

    I know there not cheep, but do they suffer from the writing problem?

  10. #20
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    Quote Originally Posted by GRUNT
    How do "DiskOnChip 2000" Drives, compare to Flash media?

    Was thinking of using one on my SBC system I'm planning, and my epia 800 has the
    socket for one.

    I know there not cheep, but do they suffer from the writing problem?
    Yes they do... as do all flash memory based devices...
    BTW M-systems (the makers of DiskOnChip) own the patents on the pen disk design, they are like the origianl founders of alot of flash applications.

    And the last time I priced those (about a year ago) they where massively expensive, and small in capacity. It was really too small for anything but a DOS or Windows CE boot system, maybe they have come out with bigger ones lately, but I bet they are still very expensive. They are cute tho...

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