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Can't get all the gigs on my new 160 Gig hard drive

 
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CNCJimmy7
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Joined: 05 Jul 2004
Posts: 91
Location: Minneapolis, MN

PostPosted: Thu Mar 31, 2005 4:13 pm    Post subject: Can't get all the gigs on my new 160 Gig hard drive Reply with quote

I jut purchased a new WD 160 hard drive and I after I formated it it only came up to 127 Gig.

Any suggestions? Crying or Very sad
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JoeM
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Joined: 09 Jul 2004
Posts: 122
Location: Jackson Hole, Wyoming USA

PostPosted: Thu Mar 31, 2005 4:14 pm    Post subject: Reply with quote

It might be a limitation of your computers BIOS.

Does it have 48-bit LBA support ?
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dawn
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Joined: 26 Jun 2004
Posts: 311
Location: Mishawaka, IN

PostPosted: Thu Mar 31, 2005 4:22 pm    Post subject: Reply with quote

We had the same type of thing here using Windows 2000 Pro and XP.
I tried using the Western Digital Data Life tools to prepair the disk and Windows 2000 still reported 149.1 Gig.

As it turns out:

The, hard drive manufacturers "LIE". The drive does not really have 160 GB availabe, it has 160 BB (billion bytes), falsely indicated as GB.
Kilo, Mega, Giga etc. are normally a factor of 1000. In the computer system it is 1024.

But the hard drive manufacturers use 1000, but Windows reports the correct size using 1024 as the factor.

So, let's do the math:

160 GB -> 160000 MB -> 160000000 KB -> 160000000000 Bytes

Now, using 1024, we calculate the real capacity.

160000000000 Bytes = 156250000 KB = 152587,890625 MB = 149,011 GB.
Only Windows 2000 with service patch 3 and above and Windows XP with service patch 1 will ever see anyting higher then 137 Gig.

Also:

MS support doc says:

Quote:

To enable 48-bit LBA large-disk support in the registry:

1. Start Registry Editor (Regedt32.exe).

2. Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Atapi\Parameters

3. On the Edit menu, click Add Value, and then add the following registry value:
Value name: EnableBigLba
Data type: REG_DWORD
Value data: 0x1 (use Dec and enter a "1")

4. Quit Registry Editor.


P.S. It really does not matter what you ahve set up in the BIOS as Windows NT and above do not use the BIOS for hard disk info, they "talk" directly with the hardware.
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Dawn Mitchell
Manufacturing Information Solutions
www.mis-group.com
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CNCJimmy7
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Joined: 05 Jul 2004
Posts: 91
Location: Minneapolis, MN

PostPosted: Thu Mar 31, 2005 4:25 pm    Post subject: YA! Reply with quote

That seemed to work Exclamation Very Happy

But those dirty little hard disk makers! Evil or Very Mad
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