What Is This Tool?
This converter allows you to translate data transfer rates from IDE (UDMA mode 1) to IDE (UDMA mode 0), two Ultra DMA transfer modes used in Parallel ATA (PATA) interfaces on older computer hardware.
How to Use This Tool?
-
Enter the value in IDE (UDMA mode 1) units you want to convert
-
Select IDE (UDMA mode 0) as the target unit
-
Execute the conversion to view the equivalent data transfer rate
-
Use the results to analyze or compare hardware transfer throughput
Key Features
-
Converts legacy PATA Ultra DMA transfer rates between IDE UDMA mode 1 and mode 0
-
Supports troubleshooting and benchmarking data transfer speeds for vintage PC components
-
Provides theoretical maximum transfer rate conversions based on ATA/ATAPI standards
-
Browser-based and straightforward to use
Examples
-
1 IDE (UDMA mode 1) ≈ 1.51 IDE (UDMA mode 0)
-
2 IDE (UDMA mode 1) ≈ 3.01 IDE (UDMA mode 0)
Common Use Cases
-
Diagnosing BIOS or drive transfer settings on vintage PATA devices
-
Benchmarking older IDE hard disks or optical drives for expected throughput
-
Troubleshooting compatibility and performance issues related to DMA timing
-
Comparing legacy interface limits when upgrading from PATA to newer interfaces
Tips & Best Practices
-
Verify BIOS and controller settings align with the intended UDMA mode
-
Use this conversion to understand theoretical throughput differences rather than actual speed
-
Ensure quality cables and hardware configurations to avoid practical transfer issues
-
Employ this tool chiefly for legacy hardware diagnostics and performance evaluation
Limitations
-
Both IDE UDMA modes are outdated with limited maximum transfer speeds
-
Actual throughput may vary due to hardware quality and system constraints
-
Conversion results reflect theoretical maximums and do not guarantee real-world performance
Frequently Asked Questions
-
What does IDE (UDMA mode 1) represent?
-
It is an Ultra DMA transfer mode of the Parallel ATA interface with a theoretical maximum raw transfer rate of about 25 MB/s, used in older PATA devices.
-
Why convert from IDE (UDMA mode 1) to IDE (UDMA mode 0)?
-
Converting helps compare throughput and diagnose compatibility or performance issues between these legacy PATA transfer modes.
-
Does this tool reflect actual data transfer speeds?
-
No, it provides theoretical maximum rates; real speeds may be lower due to hardware and system factors.
Key Terminology
-
IDE (UDMA mode 1)
-
An PATA Ultra DMA transfer mode with about 25 MB/s theoretical max rate, used in older drives.
-
IDE (UDMA mode 0)
-
The basic Ultra DMA mode for PATA devices with a nominal maximum transfer rate around 16.7 MB/s.
-
PATA (Parallel ATA)
-
An interface standard for connecting storage devices used primarily on vintage computer hardware.