1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

external drives not reading full amount of space ????

Discussion in 'All other topics' started by cphicks, Jan 27, 2007.

  1. cphicks

    cphicks Regular member

    Joined:
    May 9, 2006
    Messages:
    114
    Likes Received:
    0
    Trophy Points:
    26
    hi everyone, first of all, thank you very much to all the people that help me last time. ok i have bought 1 external drive a 320gb but when i look in my compter and right click on the drive, it says only 298 GB and i have not put anything on i yet, can someone please tell me how i solve this problem, and get my true reading of the drive, i know with internal ones you have to partition the drive with two partions, one for the DOS and whats ever left comes the second partion, i have windows xp home service pack 2, so sorry to pick your brains with this one, hope you can help, chris
     
  2. ireland

    ireland Active member

    Joined:
    Nov 28, 2002
    Messages:
    3,720
    Likes Received:
    13
    Trophy Points:
    68
    How to enable 48-bit Logical Block Addressing support for ATAPI disk drives in Windows XP

    INTRODUCTION
    This article describes the Microsoft Windows XP Service Pack 1 (SP1) 48-bit Logical Block Addressing (LBA) support for ATA Packet Interface (ATAPI) disk drives that can increase the capacity of your hard disk to more than the current 137 gigabyte (GB) limit.

    Note Windows XP does not support 48-bit LBA support unless you are running Windows XP SP1. If you want to use 48-bit LBA support, you must apply Windows XP SP1 or later. Windows XP Media Center Edition and Windows XP Tablet PC Edition already include SP1.

    For additional information about the latest service pack for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
    322389 (http://search.support.microsoft.com/kb/322389/) How to obtain the latest Windows XP service pack
    Back to the top Back to the top
    MORE INFORMATION
    Windows XP SP1 includes 48-bit LBA support for ATAPI disk drives. With this support, you can use hard disks that are larger than the current 137 GB limit. By default, support is enabled in SP1. To determine if you are running SP1, right-click My Computer and then click Properties. On the General tab, Service Pack 1 will be listed under "System."

    To determine if you have the latest ATAPI driver, verify that you have version 5.1.2600.1135 or later of the Atapi.sys file in your %systemroot%\system32\drivers folder. (Or version 5.1.2600.1152 for Windows XP 64-Bit Edition.) To do this, follow these steps:

    go here to read it all
    http://search.support.microsoft.com/kb/303013/
     
  3. cphicks

    cphicks Regular member

    Joined:
    May 9, 2006
    Messages:
    114
    Likes Received:
    0
    Trophy Points:
    26
    thankyou so much for your help, i did not think it would have mattered about windows xp home as im only using the external drives for storage i looked in my system and i have xp home , service pack 2 hope this helps thanks again chris
     
  4. pieman

    pieman Regular member

    Joined:
    Jul 13, 2003
    Messages:
    517
    Likes Received:
    0
    Trophy Points:
    26
    cphicks....as your pc recognises the drive as over 137gb, shows that you have the correct service pack installed.unfortunately, a 320gb drive is not a 320gb drive when formatted.apparantly quite a chunk of the drives capacity is lost to this process.There is a technical explaination for this but ill be damned if i can remember it,however the drive you have is normal.my 320 shows the same 298.Dont worry!!
     
  5. cphicks

    cphicks Regular member

    Joined:
    May 9, 2006
    Messages:
    114
    Likes Received:
    0
    Trophy Points:
    26
    thankyou pieman it just seems a shame that i bought a 320gb and quite a bit of it is gone thats all, i also have a 160gb and that shows 149gb shame there not away to get more out of it cheers mate chris
     
  6. ireland

    ireland Active member

    Joined:
    Nov 28, 2002
    Messages:
    3,720
    Likes Received:
    13
    Trophy Points:
    68
    I HAVE A 320GB DRIVE IN XP IT SHOWS IN PROPERITIES CAPACITY 320070287360 or 298GB
     
  7. cphicks

    cphicks Regular member

    Joined:
    May 9, 2006
    Messages:
    114
    Likes Received:
    0
    Trophy Points:
    26
    thankyou ireland and pieman it looks like il have to finish my msce course to see if i can get anymore out of it, if not "never mind" thankyou so much for your help oh one more thing if your doing a partition on a drive i was told if your drive is over 137gb "my brothers is 300gb" you have to have two partisions one for the dos can you tell me how big the first one should be please. thanks again chris
     
  8. ireland

    ireland Active member

    Joined:
    Nov 28, 2002
    Messages:
    3,720
    Likes Received:
    13
    Trophy Points:
    68
    go to control panel,admin tools,computer management,disk management
    look at ye drive in the right window..and see if ye can setup a second partition out of the unused part of ye hard drive if its all blue it can not be done..if it shows blue and black above the drive.
    in the lower right window ye will be able to add another partition....

    also win me,2000 and xp supports large disk support..win-98,no

    also your mother board manufacture might have a bios update for large disk support.
    check it out..
     
    Last edited: Jan 27, 2007
  9. ddp

    ddp Moderator Staff Member

    Joined:
    Oct 15, 2004
    Messages:
    39,073
    Likes Received:
    80
    Trophy Points:
    128
    ireland, i have no problem with my 160gig tho it is partitioned into a 40 & 120.
     
  10. Jay05

    Jay05 Regular member

    Joined:
    Apr 23, 2004
    Messages:
    733
    Likes Received:
    0
    Trophy Points:
    26
    no mean to be a noob...but should we be partitioning our hard drives into two for maximum storage capacity???
     
  11. Riotard

    Riotard Member

    Joined:
    Jan 10, 2007
    Messages:
    7
    Likes Received:
    0
    Trophy Points:
    11
    Ok basically, you are usign Windows i asume, the momeory of ur drive is 320,000,000,000 bytes, however windows reads 1024btyes as on kb and 1024kb as 1mb and 1024mb and 1gbso bically the 24 like means that it reads in differently, its just liek a normal harddrive, mine is 500g but shows 465gb or soemthign liek that, its just the way windows recognises memory becaus eit uses binary so 1,2,4,8,16,32,64,128,256,512,1024, see
     
  12. pieman

    pieman Regular member

    Joined:
    Jul 13, 2003
    Messages:
    517
    Likes Received:
    0
    Trophy Points:
    26
    now THATS the explaination i forgot.Thanks riotard
     

Share This Page