Some Windows users are reporting that they always end up seeing a warning (Ultra DMA CRC Error Count) when analyzing their HDD using the HD Tune utility. While some affected users are seeing this with used hard drivers, others are reporting this issue with brand new HDDs.

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Interface CRC Error Count inside HD Tune

What is Ultra DMA CRC Error Count?

This is a S.M.A.R.T. (Self-Monitoring, Analysis, & Reporting Technology) parameter that indicates the total quantity of CRC errors during UltraDMA mode. The raw value of this attribute indicates the number of errors found during data transfer in UltraDMA mode by ICRC (Interface CRC).


But keep in mind that this parameter is considered informational by most hardware vendors. Although the degradation of this parameter can be regarded as an indicator of an aging drive with potential electromechanical problems, it does NOT directly indicate imminent driver failure.

To get the complete picture of the health of your HDD, you need lớn pay attention to lớn other parameters and the overall drive sầu health.

After investigating this issue thoroughly, it turns out that there are several different underlying causes that might end up produce this particular error code:


Generic False Positive – Keep in mind that a warning thrown around by the HD Tune utility does not necessarily mean that your HDD is failing. This utility uses generic aggregated from every manufacturer, so concerning data from one manufacturer might not be concerning for another. To get a more accurate result, you will need khổng lồ run the brand-specific diagnostic tool & see if the same kind of warning occurs.Incompatibility between Samsung SSD và SATA Controller – If you’re encountering this issue with an SSD, chances are it’s due to lớn a conflict between your solid-state drive sầu & the Microsoft or AMD SATA controller driver. To fix this incompatibility, you’ll need lớn use Registry Editor to lớn disable NCQ (Native Command Queue).Faulty SATA Cable or SATA port – As it turns out, you can also expect to encounter this type of issue if you’re dealing with a faulty SATA port or a non-congruent SATA cable. In this case, you can identify the culprit by testing the HDD on a different machine and replacing the current SATA cable.Failing HDD or SSD – Under certain circumstances, you can expect to lớn see this error warning in the early stages of a failing drive. In this case, the only thing you can bởi vì is bachồng up your data before the drive sầu breaks up for good & start looking for a replacement.

Now that you know the very potential scenario that might cause this error code, here’s a list of methods that will help you identify & resolve the Ultra DMA CRC Error Count error:

Method 1: Running the brand-specific diagnostic tool

Keep in mind that the HD Tune Utility is a 3rd buổi tiệc nhỏ tool that will ‘judge’ the heath of an HDD solely by comparing them against a set of generic values.

Because of this, it’s highly recommended khổng lồ avoid making a decision based on HD Tune Utility alone and instead run the brand-specific diagnostic tool – The official testing tools are specifically designed for their brvà products.

Depending on your HDD manufacturer, install và scan your hard drive with the proprietary diagnostic utility. To make matters easier for you, we’ve sầu made a menu of the most popular brand-specific diagnostic tools:

Note: If your HDD manufacturer is not included in the danh sách above sầu, search online for specific steps on your brand-specific diagnostic tool, then install và run it to see if the Ultra DMA CRC Error Count is still off.

If the manufacturer-specific diagnostic tool doesn’t raise any concerns in relation lớn the value of Ultra DMA CRC Error Count, then you can safely ignore the warning thrown by HD Tune.

However, if the warning is also displayed in the manufacturer-specific analysis tool, move sầu down to lớn the next potential fix below.

Method 2: Fix the Incompatibility between Samsung SSD & SATA Controller (if applicable)

As it turns out, the Ultra DMA CRC Error Count error is not restricted lớn an HDD and can also occur if you’re using an SSD.

But if you’re seeing this error with a Samsung SSD, there’s a high chance that the issue has nothing lớn do with a bad cable or solid-state health – It’s most likely due to an incompatibility between your Samsung SSD & your chipphối Sata controller.

If you find yourself in this particular scenario, you can fix the issue and prevent this warning from appearing by disabling NCQ (Native Commvà Queue) in your SATA driver.

Note: This will not affect the functionality of your SATA drive.

If this scenario is applicable, the instructions below to fix the incompatibility between your Samsung SSD và the Sata Controller:


Press Windows key + R lớn open up a Run dialog box. Next, inside the text box, type ‘regedit’, then press Ctrl + Shift + Enter to lớn open up the Registry Editor with admin access. When you’re prompted by the UAC (User Account Control), cliông xã Yes to grant administrative sầu access.

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Opening RegeditOnce you’re inside the Registry Editor, use the left-h& thực đơn to lớn navigate to the following locations, depending on if you’re using a Microsoft SATA Controller driver or a AMD SATA Controller driver:

Microsoft SATA Controller location:HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesstorahciParametersDeviceAMD SATA Controller driver location:Note: You can either navigate here manually or you can paste the location directly into the navigation barOnce you’re inside the correct location, right-clichồng on Device, then choose New > Dword (32-bit) Value from the context menu that just appeared.

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Creating a new Dword value inside the Device menuNext, name the newly created DWORD NcqDisabled if you’re using the Microsoft SATA Controller driver, or name it AmdSataNCQDisabled if you’re using the AMD SATA Controller driver.Finally, double-cliông chồng on the DWORD that you’ve sầu just created then mix the Base lớn Hexadecimal and the value khổng lồ 1 khổng lồ disable NCQ & prevent the same incompatibility from creating the Ultra DMA CRC Error Count error.If the same issue is still occurring even after following the instructions above or this scenario was not applicable, move sầu down khổng lồ the next potential fix below.

Method 3: Replace the power and SATA cable

As several affected users have confirmed, this particular issue can also be associated with a faulty SATA cable or a faulty SATA port. Because of this, the Ultra DMA CRC Error Count error can also be a symptom of a non-congruent cable.

To demo this theory, you can connect your HDD to lớn a different computer (or at least use a different SATA port + cable) if you don’t have sầu a second machine khổng lồ vày some testing on.

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Example of a SATA Port on the motherboard

After you replaced the SATA port, repeat the scan inside HD Tune utility & see if the Ultra DMA CRC Error Count error is still occurring – If the issue has stopped occurring, consider taking your motherboard to lớn an IT technician to investigate for loose pins.

On the other hand, if the issue doesn’t occur while you use a different SATA cable, you’ve just managed to identify your culprit.

In case you’ve sầu eliminated both the SATA cable and the SATA port from the list of culprits, move sầu down khổng lồ the next potential fix below as the issue is definitely occurring due lớn a failing drive.

Method 4: Backup your HDD data

If you’ve sầu previously made sure that you were right to concern yourself with the Ultra DMA CRC Error Count error, the first thing you should do is backup your data lớn ensure that you’re not losing anything in case the drive sầu goes bad.

If you’re looking to baông chồng up your HDD data while you figure out which replacement to get, keep in mind that you have two ways forward – You can either backup your HDD using the built-in feature or you can use a 3rd tiệc ngọt utility.

A. Backing up the files on your HDD via Command Prompt

If you’re comfortable with using an elevated CMD terminal, you can create a backup và save sầu it on external storage without the need to install a 3rd tiệc ngọt software.

But keep in mind that depending on your preferred approach, you might need to lớn insert or plugin-compatible installation media.

If you’re comfortable with this approach, here are the instructions for backup your files from an Elevated Comm& prompt.

B. Backing up the files on your HDD via an Imaging 3rd buổi tiệc nhỏ software

On the other hand, if you’re comfortable with trusting a 3rd tiệc ngọt utility with your HDD backup, you’ll have a lot of extra features that are simply not available when creating a regular backup via Commvà Prompt.

You can use a 3rd các buổi tiệc nhỏ backup software khổng lồ either clone or create an image of your HDD and save it externally or on the cloud. Here’s a danh sách of the best cloning & imaging software that you should consider using. 

Method 5: Sover your HDD for replacement or order a replacement

If you’ve made sure that the Ultra DMA CRC Error Count warning you’re seeing is genuine and you have successfully backed up your HDD data in advance, the only thing you can do right now is to look for a replacement.

Of course, if your HDD is still protected by the warranty, you should skết thúc it in for repair right away.

But if the warranty has expired or you have sầu the option khổng lồ return it still, our recommendation is lớn stay away from the legacy HDD (Hard Disk Drive) & go for SSD (Solid State Drive) instead.

Although SSD is still more expensive than traditional HDD, there are much less prone to break and the tốc độ is incomparable in favor of SSD (10x more writing và reading speeds).

If you’re in the market for an SSD, here’s our advanced guide to lớn buying the best solid-state drive for your needs.

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