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Computer newbies: 160GB HDD when formated is 149GB....

by 70441.2227 - 2/20/07 9:06 PM
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Post 1 of 19

160GB HDD when formated is 149GB....

by 70441.2227 - 2/20/07 9:06 PM

File System NTFS

I have an older Western Digital 160GB HDD that when formated is 149GB. I was wondering if losing 11GB when formating was more than usual?

Thanks,
Bob

Post 2 of 19

Nothing is lost. Just using different units

by linkit - 2/20/07 10:26 PM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

THE ANALOGY: Whether your height is reported in feet or meters, you don't get any taller or shorter.

1,000,000,000 bytes = Decimal GB
1,073,741,824 bytes = Binary GB

So, one Decimal GB = 0.93132 Binary GB

The hard drive size printed on its retail packaging is a count of the bytes reported in units of Decimal GB. The hard drive size reported by Windows is a count of the same number of bytes, but with different units of measurement, namely the Binary GB.

So, you can expect Windows to display the size of any hard drive at about 93% of the advertised number of GB (or almost 7% fewer GB).

Post 3 of 19

i had the same question/problem a few days ago

by jonah jones Moderator - 2/20/07 10:40 PM In reply to: Nothing is lost. Just using different units by linkit

it occurs to me that M'soft would score MAJOR brownie points if they used a system that would say "formatting your brand new 80G" and then "your 80G is formatted"


psychology i know, but it sure would feel good ;-)


jonah

.,

Post 4 of 19

That would be nice

by linkit - 2/20/07 11:09 PM In reply to: i had the same question/problem a few days ago by jonah jones Moderator

Some who encountered this issue decided to join a class action lawsuit to feel good:
http://www.google.com/search?hl=en&q=western+digital+lawsuit+gigabytes&btnG=Search

No one felt as good as the two lawyers who took in half a million dollars!

Post 5 of 19

(NT) Thanks to everyone for their responsesI appreciate it. Bob

by 70441.2227 - 2/25/07 7:13 AM In reply to: That would be nice by linkit

Post 6 of 19

It's crazy

by Chiatzu - 3/3/07 12:12 AM In reply to: That would be nice by linkit

The lawyers usually do come out richer, while everyone else gets a few dollars. That class action was a joke, a waste of time and tax payers money. Anyone with half a brain and a few minutes of time with Google, would be able to understand why there is a disk space difference between an unformatted and formatted drive.

Post 7 of 19

Again a frivilious Law Suit to make Lawers rich

by david6356 - 3/3/07 6:37 AM In reply to: That would be nice by linkit

I own 2 Western Digital HD's and have always known how they arive at the "advertised" capacity. It is kind of like buying gasoline and paying Two dolars and 59.9 cents a gallon. And to think that Western Digital settled this stupid suit. By the way I went to the link to get my free $30.00 Software (Ha Ha) and the time had expired claim that software. PEOPLE ARE SO GREEDY! What happend to good old fasioned common sense and being nice to others. I don't really think that WD tried to intentionally mislead the public. They just wanted to sell their product. WD is not the only HD manufacturer that uses this formula to show capacity. So who is next in this mad mad world of lawsuits? Please excuse my spelling and grammer I just got out of the hospital after 13 days in intensive care and 8 hours in regular care. It seams that once you are out of Intensive care you get the broom following you to get you out as soon as possible. Thank you again Greedy Attorneys. Without frivilious lawsuits we might even get decent health care. What goes around comes around. May God Bless us All!

Post 8 of 19

160 billion = 149G

by ChuckT - 2/25/07 12:50 PM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

As you have already read, but here is the math (somewhat simplified, but if you know of the 'powers of 2' you'll understand):
160,000,000,000 / 1024 /1024 /1024 = 149.01 G

Post 9 of 19

larger hard drives

by willtr2 - 3/3/07 7:57 AM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

you are fortunate that it is reading over 127GB

the problem is the bios and the older bios have a limit of 127GB

you need to upgrade your bios with a newer version

first what motherboard do you have

at the first boot press the pause and brake button on the keyboard, this will pause the screen so that you can read and write down the information that is displayed

then press the enter button for machine to continue to boot

armed with the correct information go onto the motherboard web site and down load the bios into a file that you can easily find

transfer bios information onto a clean floppy disk (freshly formated) with no other information on the floppy disk

put the floppy disk fully in machine and reboot with disk in machine
and follow any instruction on screen

Post 10 of 19

BIOS and/or operating system

by linkit - 3/5/07 1:03 AM In reply to: larger hard drives by willtr2

As I understand it, the 48-bit LBA problem can be a hardware and/or software problem.

Reference: http://www.48bitlba.com

Post 11 of 19

Let's make this easy...

by MetsSoxx - 3/3/07 12:36 PM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

Bob,

Original version of XP would only read to that 149GB or so barrier. If you don't have already, install SP2 on the machine. After that is done, right click on "my computer" and hit manage. Under Storage on the left, click on disk management. You should see the unallocated space in there. You can format that section and create a new drive letter for that previously unseen space on your harddrive.

Post 12 of 19

137GB (127GB) limit

by linkit - 3/5/07 1:13 AM In reply to: Let's make this easy... by MetsSoxx

The original version of XP (no service pack) didn't have support for hard drives over 137GB (formatted as 127GB).

This was fixed in with XP-SP1.

Reference: http://www.48bitlba.com/issues.htm

The 149GB issue is a different issue (see Post #2).

Post 13 of 19

clarification on 127GB limit

by linkit - 3/5/07 4:05 PM In reply to: 137GB (127GB) limit by linkit

The 127GB issue is a limitation of older Windows disk utilities that use 16-bit programming. An updated versions of XP is a solution to this particular issue issue. The 127GB limit is not an issue of presenting the total number of bits on the hard drive in different units.

Post 14 of 19

Thanks to everyone for their response...

by 70441.2227 - 3/3/07 6:53 PM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

Bob

Post 15 of 19

I'm surprised at all these wrong answers

by j_a_s_p_e_r - 3/5/07 6:07 AM In reply to: 160GB HDD when formated is 149GB.... by 70441.2227

The answer is pretty simple. Formatting itself requires the use of a certain percentage of the drive the raw bit data size is actually 160GB. In the case of my unformatted Seagate drives my unformatted 250GB was actually 250.25 GB, formatted it was about 227GB if I remember correctly.

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