What Is This Tool?
This converter allows users to convert data transfer rates between IDE (UDMA mode 0) and IDE (UDMA mode 2), two Ultra DMA transfer modes used in Parallel ATA (PATA/IDE) devices. It helps understand differences in transfer speeds and assists in hardware troubleshooting and configuration for legacy systems.
How to Use This Tool?
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Enter the value in IDE (UDMA mode 0) to convert.
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Select the target unit as IDE (UDMA mode 2).
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Initiate the conversion to obtain the equivalent transfer rate.
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Use the converted value for system diagnostics or performance comparisons.
Key Features
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Converts data transfer rates between IDE (UDMA mode 0) and IDE (UDMA mode 2).
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Supports legacy Parallel ATA (PATA/IDE) interface standards.
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Includes nominal maximum theoretical transfer rate considerations.
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Provides conversion formulas and example calculations for easy use.
Examples
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2 IDE (UDMA mode 0) equals approximately 1.006060606 IDE (UDMA mode 2).
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10 IDE (UDMA mode 0) equals approximately 5.03030303 IDE (UDMA mode 2).
Common Use Cases
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Specifying or diagnosing throughput of legacy PATA/IDE hard drives and optical drives.
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Configuring BIOS or device drivers to troubleshoot DMA timing issues.
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Comparing interface limits during hardware migration from PATA to SATA or USB.
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Benchmarking and validating legacy disk drive performance.
Tips & Best Practices
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Use conversion results only as reference for nominal maximum theoretical rates.
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Consider hardware condition and cable quality as factors affecting real data transfer.
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Apply conversions when configuring legacy BIOS or troubleshooting PATA device compatibility.
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Do not rely on outdated interfaces for modern performance requirements.
Limitations
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Conversion reflects theoretical maximum transfer rates, not actual speeds influenced by system overhead.
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Applicable solely to legacy PATA/IDE interfaces; not suitable for modern SATA or NVMe standards.
Frequently Asked Questions
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What does IDE (UDMA mode 0) represent?
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It is the Ultra DMA transfer mode 0 for PATA/IDE devices, indicating a nominal maximum raw data transfer rate of about 16.7 MB/s used to manage DMA transfers.
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How is IDE (UDMA mode 2) different from mode 0?
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IDE (UDMA mode 2), also called ATA/33, provides a higher theoretical transfer rate of about 33.3 MB/s with a specific timing profile for reliable data exchange.
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Can this converter be used for modern SATA drives?
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No, it only applies to legacy PATA/IDE interfaces and does not support modern SATA or NVMe standards.
Key Terminology
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IDE (UDMA mode 0)
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Ultra DMA transfer mode 0 for PATA devices with a nominal maximum transfer rate of about 16.7 MB/s for DMA negotiation.
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IDE (UDMA mode 2)
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Ultra DMA transfer mode 2 (ATA/33) for PATA devices providing a maximum theoretical transfer rate of about 33.3 MB/s with specific timing for reliable data transfer.
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PATA
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Parallel ATA is a legacy interface standard for connecting storage devices, such as hard drives and optical drives, before SATA.