What Is This Tool?
This tool helps convert data transfer rates from IDE (UDMA mode 2) to IDE (DMA mode 0), two transfer modes used in legacy Parallel ATA (PATA) interfaces. It allows users to compare and configure device transfer speeds for older computer hardware and embedded systems.
How to Use This Tool?
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Enter the value in IDE (UDMA mode 2) units you want to convert
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Choose IDE (DMA mode 0) as the target unit
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Click the convert button to view the equivalent data transfer rate
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Use results to compare or configure legacy PATA device settings
Key Features
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Converts data transfer units between IDE (UDMA mode 2) and IDE (DMA mode 0)
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Supports legacy PATA hardware transfer mode comparisons
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Browser-based and user-friendly for quick conversions
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Useful for troubleshooting and configuration of older drives
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Provides theoretical transfer mode equivalences
Examples
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1 IDE (UDMA mode 2) equals approximately 7.86 IDE (DMA mode 0)
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2 IDE (UDMA mode 2) equals approximately 15.71 IDE (DMA mode 0)
Common Use Cases
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Configuring BIOS or drive-controller settings for older hard drives
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Comparing data transfer rates in legacy disk performance testing
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Troubleshooting compatibility and driver issues on PATA systems
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Managing transfer modes in embedded or industrial legacy devices
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Developing OS or BIOS drivers that detect IDE DMA modes
Tips & Best Practices
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Verify device compatibility when switching between transfer modes
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Use the conversion for understanding relative speed differences
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Consider hardware conditions as actual speeds may vary
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Apply conversions only to legacy IDE/PATA systems
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Leverage the tool for troubleshooting older PC hardware effectively
Limitations
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Transfer rates are theoretical and may differ in real operation
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Applicable only to legacy IDE/PATA interfaces, not modern SATA or NVMe
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Older hardware constraints can affect conversion relevance
Frequently Asked Questions
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What does IDE (UDMA mode 2) refer to?
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IDE (UDMA mode 2) is an Ultra DMA transfer mode in PATA interfaces, providing a theoretical maximum transfer rate of about 33.3 megabytes per second.
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Why convert IDE (UDMA mode 2) to IDE (DMA mode 0)?
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Converting helps compare transfer speeds and configure legacy devices, especially when troubleshooting or setting lower-speed DMA modes on older PATA hardware.
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Are these conversions useful for modern systems?
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No, this conversion applies only to legacy IDE/PATA technology and is not relevant for newer SATA or NVMe storage devices.
Key Terminology
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IDE (UDMA mode 2)
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An Ultra DMA transfer mode for PATA devices with a theoretical rate of about 33.3 MB/s, also known as ATA/33.
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IDE (DMA mode 0)
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The lowest direct memory access mode in PATA devices that moves data blocks into system memory without CPU programmed I/O.
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PATA
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Parallel ATA, a legacy interface standard for connecting storage devices like hard drives and optical drives.