Πρόβλημα: HDD 500Gb αναγνωρίζεται ως 128Gb...

[Dj-Axi]

Καλησπέρα. Πρόσφατα αγόρασα εναν εσωτερικο σκληρο δισκο WD με μνημη 500 Gb. Στο pc τρεχω δυο λειτουργικα, Windows XP Pro SP3 και Windows 7 Ultimate (v.7600). Συνδεσα τον δισκο στον πυργο, ανοιξα τα Windows XP και απο Διαχειρηση δισκων εκανα format στον δισκο σε συστημα NTFS και λειτουργισε κανονικα (αναγνωριστηκαν 465,... Gb). Οταν ομως εκανα επανεκινηση και φορτωσα τα Windows 7, αμεσως μου εβγαλαν μηνυμα οτι ο νεος δισκος χρειαζεται διαμορφωση (ενω ειδη τον ειχα διαμορφοσει στα ΧΡ) και εκτος αυτου τον αναγνωριζει με μνημη 128 Gb μονο...!!! Τον αφησα χωρις format, επανεκινησα παλι σε ΧΡ και μου εβγαλε ακριβως το ιδιο προβλημα...παρ' οτι στην αρχη αναγνωριστηκε κανονικα. Απ' οτι εψαξα στο google για παρομοιο προβλημα, βρηκα και αλλες ομοιες περιπτωσεις με 500ριδες δισκους να αναγνωριζονται ως 128ριδες. Το πιο συγκεκριμενο αρθρο το επισυναπτω παρακατω:

High-capacity HDD is not recognized (<128 GB limit)

It become more and more familiar that hard drives get capacity exceeding 128 GB and when installed on some machines, the system shows only 128 gigabytes.

Causes of problem

This problem may be due to two separate causes:

1 Physical Cause: The motherboard cannot managing more than 128 GB

2 Software Cause: The operating system (Windows, Linux, MacOS, etc..) does not have the capacity of managing large disk.

Scientific explanation

The 128 GB limit comes from addressing mode disk drive (LBA - Logical Block Addressing), limited to 28 bits. Indeed, with 28 bits, it is possible to send 2 for 28 sectors of 512 bytes, totaling 137438953472 Bytes, corresponding to 128 GB (actually 137 GB if it is considered that a gigabyte is 1 billion bytes and not 1000 ^ 2 bytes).

Up to 2002, the standard ATA-6 allows you to address the areas of disk 48-bit (LBA48), or for sectors of 512 bytes 2 ^ 48 = 144115188075855872 * 512 bytes, ie 256 Petabytes !

Solutions

Enable support at the operating system

To enable the computer to recognize this capacity,you should ensure that the operating system supports LBA48. For Windows systems, it is from Windows 2000 Service Pack 3 and Windows XP Service Pack 1.

However, under Windows 2000 it is necessary to enable support by making a change in the registry:

Click on Start / Run and type regedit.

Scroll to: HKEY_LOCAL_MACHINE / System / CurrentControlSet / Services / Atapi / Parameters / Create a new DWORD value named EnableBigLba and set its value to 1

For systems running Windows 98, Windows 98 SE and Windows Me, an individual (Rudolph R. Loew) has developed a patch to provide support for hard disks, high-capacity:

members.aol.com/rloew1/Programs/Patch137.htm HIGH CAPACITY DISK PATCH Version 4.5 (DEMO)

Enable support at the motherboard

Then it may be necessary to enable LBA48 support at the motherboard. To do this, it may be flashing the BIOS of the motherboard: Flashing the BIOS

You should also download the latest drivers for your motherboard.

Motherboard based on Intel chipset:

www.alldrivers.com/index.php?v_page=23&v_code=2589

Motherboard based on Via chipset:

www.alldrivers.com/index.php?v_page=23&v_code=3526

Partitioning the disk

Finally, once the total capacity of the disk recognized, you will have to create partitions or resize existing partitions. To partition the hard disk, follow the guide:

Partitioning a hard disk

Αν καποιος γνωριζει κατι σχετικο, παρακαλω ας δωσει τα "φωτα" του γιατι δεν εχω ιδεα τι να κανω για να κανω το pc να τον αναγνωρισει σε full μνημη.

Ευχαριστω.:giveup:

[Aligator21]

Δοκίμασες να τον κάνεις πάλι format μέσα από τα Windows 7;

Για δοκίμασε το και πες μας.

[Dj-Axi]

Εκανα παλι format απο Windows 7 και δεν αλλαξε τπτ. Παρακατω επισυναπτω καποιες φωτος:

Ο δισκος που εχει προβλημα ειναι ο επονομαζομενος New Volume.

Το περιεργο ειναι οτι εχω αλλους τρεις δισκους (WD 80Gb, 200Gb, 320Gb-portable) αλλα μονο στον 500αρη παρουσιασε προβλημα. Επισης το format εγινε με Allocation Unit Size => Default, αλλα θυμαμαι οταν τον εντοπισαν τα W7 για πρωτη φορα μου ειχε προεπιλογη να γινει format σε Allocation Unit Size => 4096.

Επισεις βρηκα και ενα λογισμικο το οποιο επαναφερει την εργοστασιακη μνημη ενος σκληρου δισκου αλλα δεν ξερω κατα ποσο ειναι αξιοπιστο:

Restoring Factory Hard Drive Capacity

July 19th, 2007hard drives Dmitry Postrigan

This article is a complete guide on recovering your hard driveʼs factory capacity. At the end of this article there is a link to our program that recovers factory capacity of any hard drive.

“My hard drive has mysteriously became smaller! How can I restore its full capacity?”

There are several common reasons of why your hard drive might lose some megabytes or even gigabytes:

Your Operating System does not support LBA48 addressing mode

You are mixing binary and decimal gigabytes

Your motherboard has created a hidden area on your hard drive to store a backup of the BIOS binaries

Your PC/Laptop manufacturer has created a hidden area on your hard drive to store a backup of the Operating System installation files (needed for automatic restore functionality)

You have used some software that sets HPA (Host Protected Area), messes with DCO (Device Configuration Overlay), or switches off LBA48 support

You have misplaced a jumper on the drive

There was Magic involved

Now I will go through these things one-by-one and provide some more details.

Operating System does not support LBA-48 addressing mode

Windows 95, Windows 98 and Windows ME will not support big drives (>137GB) even if you install all hotfixes. There are ways to get around this problem, but since these Operating Systems are rather rare nowadays, I do not see the point of writing about them.

Windows 2000, 2003 and XP do not support big drives by default; you will have to install the latest service pack in order to get big drives working properly on these OS.

Windows Vista does not have any issue with big drives.

Binary and decimal gigabytes

Hard drive manufacturers use decimal gigabytes while operating systems use binary gigabytes. One decimal gigabyte contains 1 000 000 000 bytes (1000 x 1000 x 1000), whereas one binary gigabyte contains 1 073 741 824 bytes (1024 x 1024 x 1024) — thatʼs more than a 7% difference! So, your 300 GB hard drive will show up in Windows as a 279 GB hard drive.

Motherboard creates HPA

Motherboard can create a so-called “Host protected area” on your hard drive to store its data. Usually this area is not bigger than 10 megabytes, so there is nothing to worry about.

PC/Laptop manufacturer creates HPA

Manufacturer of your PC can create a “Host protected area” on your hard drive to store an image of the original operating system and programs. This area is used when you want to restore the original state of your desktop PC or laptop without using CD/DVD disks. Usually this area is quite large (8-20 GB).

In this case, to restore the original capacity of the hard drive with the HDD Capacity Restore tool that we include in this article, you may need to remove the hard drive out of its original PC/laptop and temporary attach it to another PC. This is needed because most BIOSes will disable HPA/DCO operations to ensure that nothing can reset or damage that hidden area.

Software that has the ability to control HPA and DCO

For example, MHDD. This software allows you to set a Host protected area on your hard drive, so the hard drive will report less capacity to both BIOS and Operating System. MHDD can also access DCO (Device Configuration Overlay), and that allows you to not only change hard driveʼs capacity, but also switch some hard drive functions, such as LBA48 support, Security commands support and others.

Some manufacturers (for example, Dell and HP) use DCO to reduce capacity for marketing needs. Example: they need to ship 1000000 computers with 40GB hard drives, but they only have 80GB drives in stock. They will use their own DCO tools to lock capacity to 40GB.

Jumper settings that limit hard drive capacity

Most hard drives have a special jumper setting that allows you to limit their capacity to either 32 or 128 (137) gigabytes.

Magic cases

These include things like HDD firmware bugs (believe me, there are plenty of them).

Also, sometimes a damaged Master Boot Record may cause the BIOS and/or the Operating System to misdetect the true hard drive capacity. In this case you would need to use a zero-fill tool.

Sometimes a very broken hard drive may report wrong capacity. In this case there is nothing you can do about that.

Solutions. Restoring factory capacity

1. Check jumpers. Consult with manufacturerʼs instructions and set jumpers to the proper position.

2. Check your OS, does it have all updates installed?

3. Check disk partitions. Run Windows Disk Management console and see if there is any free space that is not used by any partition.

4. If steps 1—3 did not help, then we have a very cool tool that analyzes your hard driveʼs LBA48, HPA and DCO status and recovers factory settings (see below).

HDD Capacity Restore Tool

Weʼve came up with a freeware tool that handles LBA48 mode setting as well as HPA and DCO features. It does everything automatically: it extracts the factory capacity; then it restores the factory LBA48, HPA and DCO settings.

Download HDD Capacity Restore Tool.

Supported OS: 32-bit versions of Windows XP/Vista/2003

All you have to do is to run it and click “Restore Capacity”. The program will do the rest.

Update May 24, 2008: Many people ask if this this tool formats the hard drive and/or erases the data. No, it does not perform any kind of formatting; furthermore it does not read from or write to the user data area at all (including partition tables, boot records, etc). It only alters HDD firmware (HPA and DCO settings).

I strongly recommend to re-power your computer before running this tool. That means, completely power off your computer; then power on, start Windows and run the tool.

If the tool fails to restore the original capacity, then the most common reason is that your motherboard is blocking HPA and DCO commands. You can check that by running BIOS Setup and looking for things like “DCO” or “HPA”. If nothing helps, try on another computer. If you are brave enough, you can also try the following: run the program, select your hard drive, and then when you see the “Restore Capacity” button, re-power your hard drive by detaching and re-attaching its power cable. Warning: you are doing this at your own risk!

After the program finishes working (3—20 seconds), you will need to power off your PC, then wait 10—20 seconds and then power on.

I believe Iʼve covered everything. If I am missing anything, you are very welcome to leave a comment

Good luck!

[yanni]

Δεν πρόσεξα αν το αναφέρει στο αρχικό post αλλά μήπως πρέπει να αλλάξεις θέση σε κανένα jumper πάνω στον δίσκο?

Λάθος μου αφού λες ότι αρχικά στον αναγνώρισε κανονικά.

Δοκίμασε τα utils της WD.

[Dj-Axi]

Ετρεξα ενα διαγνωστικο προγραμμα της WD και ο σκληρος βγηκε οτι δουλευει κανονικα:

[yanni]

Ναι αλλά στον βγάζει πάλι με όριο τα 137GB.

Έλεγα να σου προτείνω να τρέξεις τα διαγνωστικά από το CD σε DOS (να κατεβάσεις το iso των tools) έχοντας αφαιρέσει τους υπόλοιπους δίσκους από το σύστημα και να δεις αν σου δίνει την δυνατότητα να επαναφέρεις τον δίσκο στα 500GB.

Επειδή όμως στους δίσκους βάζουμε συνήθως σημαντικά αρχεία θα σου έλεγα να σταματήσεις να το ψάχνεις και να τον πας για αντικατάσταση.

[Dj-Axi]

Ακομα και να μου τον αντικαταστησουν, λογικα θα μου δωσουν εναν ιδιο και θα εχω και παλι το ιδιο προβλημα στα Windows 7. Οποτε δεν ειναι μονιμη λυση και αυτο μιας και που ο δισκος επαιξε κανονικα σε ΧΡ αλλα οχι στα 7. Επομενος δεν θα πρεπει απλα να τον φορτωνω σε Windows 7?

[yanni]

Σε αυτη την περίπτωση κάψε ένα CD με τα διαγνωστικά της WD, αφαίρεσε όλους τους άλλους δίσκους από το σύστημα κάνε boot από το CD αυτό και ψάξε να δεις αν σου δίνει την δυνατότητα να αλλάξεις manual μέσα από τα διαγνωστικά την χωρητικότητα του δίσκου ώστε να την επαναφέρεις στα 500GB. Αν δεν γίνεται δεν μπορώ να καταλάβω γιατί θα επέλεγες να μείνεις με έναν δίσκο των 128GB όταν εσύ έχεις πληρώσει για 500 GB.

[spc]

format στα XP να δεις αν τον ξαναβλέπουν 500.

Αν οχι, προφανως εχει προβλημα το κομματι και πας για αλλαγη.

[Dj-Axi]

Φυσικα και θα τον επιστρεψω μιας και δεν βλεπω αλλη λυση. Απλα δεν ξερω μηπως θα υπαρξει ξανα το ιδιο προβλημα εαν μου τον αντικαταστησουν και στον νεοτερο.

Format στα ΧΡ ειναι απαραιτητο? Δεν νομιζω να ειναι προβλημα των ΧΡ. Απλα απ'οτι καταλαβα κατι συμβαινει μεταξυ W7 και πιθανοτατα της μητρικης μου και του BIOS. Σε καινουργιο δισκο λογικα δεν θα εχω προβλημα στα ΧΡ.

[Dj-Axi]

Τελικα εκανα αντικατασταση στον δισκο και πηρα εναν ιδιο. Πρωτου τον συνδεσω (και απ'οτι μου ειπαν απ'το service) καλο ειναι να κανω update στο BIOS. Το θεμα ειναι οτι δεν εχω ξανα κανει κατι τετοιο. Γνωριζει κανεις να μου πει τι πρεπει να κανω?