Getting XP Pro to recognize an additional HD after a rebuild

By brucehusker ·
I recently had a faulty memory module fry a motherboard. I replaced it, along with a few other components, and created a new system drive with a previously used aux drive from the old system. That drive died and I bought a new WD SATA drive to replace it. All is well except I have one Aux drive that the motherboard recognizes correctly, XP sees it, but disk management reports that 128 gb is healthy, 337gb is unallocated and the file system is RAW. I would really like to get this back intact because there are some very important files I'd like to save. I've been poking around for a few weeks trying to come up with an answer, to no avail. Chkdsk won't run because it's RAW, and none of the disk management tools have any effect. Is there a solution or do I just have to bite the bullet and reformat? Thanks in advance for any help.

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Could be a BIOS problem

by jan.lutgert In reply to Getting XP Pro to recogni ...

Hello Bruce,
I have recently installed a WD 160GB harddisk in my computer. Installing Windows XP proved to be a painfully slow proces. So I suspected something could be wrong with the harddisk jumper settings or the BIOS. The WD website provides several solutions to this problem. Take a look at
In their "Support" menu select "Technical Information" and next "Jumper Settings". You will see a list with references to all kinds of installation issues. Your problem was mentioned as number 15: "How to use Data Lifeguard Tools 11 to install, partition, and format EIDE hard drives larger than 137GB". It seems the problem is caused by an old BIOS and operating systems (Win98, WinME) that do not support drives with a capacity above 137 MB (48-bit addressing)

I hope this helps you solving the problem.


Jan Lutgert

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yep. BIOS issue.

by michael.tindall In reply to Could be a BIOS problem

I'm sure this is a bios problem. Look up BIOS Flash updates for your motherboard that are intended to allow "48 bit LBA (Large Block Addressing)", and your computer will then (and only then) be able to address (reliably) over 137 gb.

Make ABSOLUTELY certain the flash you use is intended specifically for your hardware, you could permanently damage your motherboard.

That having been said, I had nearly the EXACT problem with an AOpen motherboard and a series of harddrives. Hard drive setup and Dynamic Disk Overlay programs, high and low level formats, Windows XP reinstallations, etc, even if they appear to work correctly, will ALL ULTIMATELY FAIL, and only waste more of your time. It will also thoroughly mystify most retailers.

If you need additional help, publish your motherboard and chipset specs.

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Try this---------

by warnerpeter In reply to Getting XP Pro to recogni ...

Go to and read about the program "SpinRite" developed by Steve Gibson. The program will completely rebuild your HD and recover anything that is recoverable. It is an excellent piece of code and I have used it sucessfully on many drives that were "left for dead". Just check it out and read about what it can do for you.

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Had something remarkably similar!!!!!

by jeffro in Berkshire In reply to Try this---------

I had a very similar situation just a couple of days ago -

The problem was due to insufficient voltage on the "rail" the HDD was connected to. Try another power connector

and then go through the storage management area under Administrative Tools

Always check the obvious first before using drastic software tools!!!

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This just might fix your problem

by TWLAAAS In reply to Getting XP Pro to recogni ...

Check this website out

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Fried motherboards Do Not Recover without ISSUES

by donaldcoe In reply to Getting XP Pro to recogni ...

From a technical point of view, once fried always fried from chicken to electronics. We all exhibit old habits of not giving up on family members (i.e. computers that are dated). I noticed from your entries that you used a previous drive from another AUX that also died on that same Motherboard (MB), then you bought a new SATA which your old (MB)board would not correctly support or fully recognize. Windows 2K/XP will only see up to 137Gb until after Service Packs and updates are installed. There is a better way to see the whole drive before Windows is installed, by using Partition Magic application CD which can boot from CD, allows you to create partitions, format them, prior to installing Windows 2K/XP. In the Windows install process leave the previous format from Partition Magic, I guarantee the install process will be faster and without issues.

Additional note: If the new drive is greater that 140Gb create equal partitions of 140Gb and you will get NO More errors. Old motherboards were designed when the max size drives were 80 to 120GB, in the past 6 to 8 years we have 160-200-250-350 and on and on.

Windows tries to talk to the BIOS of the board if there are problems the problems keep on coming.

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XP SP1a Download

by IC-IT In reply to Getting XP Pro to recogni ...

You will need to install at least Service Pack 1A (or SP2) in order for XP to recognize the 48bit addressing (rives over 137GB). That assumes that your BIOS is also compatible. It can be downloaded here.

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Test and/or replace your power supply

by conceptual In reply to Getting XP Pro to recogni ...

When q motherboard is fried the power supply is selcom unscathed. Even if voltages are nominally correct there may be problems under a full load.

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Was the new HDD formatted initially....?

by STHKOne In reply to Getting XP Pro to recogni ...

My question I can add to the discussion that you didn't elude to whether or not you formatted the HDD for NTFS. This can be done within the Windows XP (or any current iteration of the OS) through Disk Management.

Check that first as this may be the reason the HDD doesn't recognize the new drive. I recently added a 120GB Seagate IDE to a 7yr old HP Pavilion about a year ago.

Using Disk Mgmt first was the first thing I did prior to using the extra drive for new and then moving existing files from the existing 40GB drive the machine originally came with.

Hope That Helps.


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Getting XP Pro to recognize an additional HD after a rebuild

by diarbe In reply to Getting XP Pro to recogni ...

From my experience - and it is stated all over the net that WINXP will not recognize larger drives until you install the service packs 1 at least. Install SP1 somehow and then use partition magic 8 to sort things out.

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