Online Data Transfer Units Converter
How to Convert from IDE (UDMA mode 1) to IDE (DMA mode 2)?

How to Convert from IDE (UDMA mode 1) to IDE (DMA mode 2)?

Convert data transfer values between IDE (UDMA mode 1) and IDE (DMA mode 2) formats for legacy Parallel ATA (PATA) devices using this straightforward online unit converter.

Please check your input. It must be a valid numeric value.

IDE (UDMA mode 1) to IDE (DMA mode 2) Conversion Table

IDE (UDMA mode 1) IDE (DMA mode 2)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
IDE (UDMA mode 1) to IDE (DMA mode 2) Conversion Table
IDE (UDMA mode 1) IDE (DMA mode 2)

Explore More Data Transfer Units Converter

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  2. How to convert from IDE (UDMA mode 1) to bit/second [b/s]?
  3. How to convert from byte/second [B/s] to IDE (UDMA mode 1)?
  4. How to convert from IDE (UDMA mode 1) to byte/second [B/s]?
  5. How to convert from kilobit/second (SI def.) to IDE (UDMA mode 1)?
  6. How to convert from IDE (UDMA mode 1) to kilobit/second (SI def.)?
  7. How to convert from kilobyte/second (SI def.) to IDE (UDMA mode 1)?
  8. How to convert from IDE (UDMA mode 1) to kilobyte/second (SI def.)?
  9. How to convert from kilobit/second [kb/s] to IDE (UDMA mode 1)?
  10. How to convert from IDE (UDMA mode 1) to kilobit/second [kb/s]?
  11. How to convert from kilobyte/second [kB/s] to IDE (UDMA mode 1)?
  12. How to convert from IDE (UDMA mode 1) to kilobyte/second [kB/s]?
  13. How to convert from megabit/second (SI def.) to IDE (UDMA mode 1)?
  14. How to convert from IDE (UDMA mode 1) to megabit/second (SI def.)?
  15. How to convert from megabyte/second (SI def.) to IDE (UDMA mode 1)?
  16. How to convert from IDE (UDMA mode 1) to megabyte/second (SI def.)?
  17. How to convert from megabit/second [Mb/s] to IDE (UDMA mode 1)?
  18. How to convert from IDE (UDMA mode 1) to megabit/second [Mb/s]?
  19. How to convert from megabyte/second [MB/s] to IDE (UDMA mode 1)?
  20. How to convert from IDE (UDMA mode 1) to megabyte/second [MB/s]?
  21. How to convert from gigabit/second (SI def.) to IDE (UDMA mode 1)?
  22. How to convert from IDE (UDMA mode 1) to gigabit/second (SI def.)?
  23. How to convert from gigabyte/second (SI def.) to IDE (UDMA mode 1)?
  24. How to convert from IDE (UDMA mode 1) to gigabyte/second (SI def.)?
  25. How to convert from gigabit/second [Gb/s] to IDE (UDMA mode 1)?
  26. How to convert from IDE (UDMA mode 1) to gigabit/second [Gb/s]?
  27. How to convert from gigabyte/second [GB/s] to IDE (UDMA mode 1)?
  28. How to convert from IDE (UDMA mode 1) to gigabyte/second [GB/s]?
  29. How to convert from terabit/second (SI def.) to IDE (UDMA mode 1)?
  30. How to convert from IDE (UDMA mode 1) to terabit/second (SI def.)?
  31. How to convert from terabyte/second (SI def.) to IDE (UDMA mode 1)?
  32. How to convert from IDE (UDMA mode 1) to terabyte/second (SI def.)?
  33. How to convert from terabit/second [Tb/s] to IDE (UDMA mode 1)?
  34. How to convert from IDE (UDMA mode 1) to terabit/second [Tb/s]?
  35. How to convert from terabyte/second [TB/s] to IDE (UDMA mode 1)?
  36. How to convert from IDE (UDMA mode 1) to terabyte/second [TB/s]?
  37. How to convert from ethernet to IDE (UDMA mode 1)?
  38. How to convert from IDE (UDMA mode 1) to ethernet?
  39. How to convert from ethernet (fast) to IDE (UDMA mode 1)?
  40. How to convert from IDE (UDMA mode 1) to ethernet (fast)?
  41. How to convert from ethernet (gigabit) to IDE (UDMA mode 1)?
  42. How to convert from IDE (UDMA mode 1) to ethernet (gigabit)?
  43. How to convert from OC1 to IDE (UDMA mode 1)?
  44. How to convert from IDE (UDMA mode 1) to OC1?
  45. How to convert from OC3 to IDE (UDMA mode 1)?
  46. How to convert from IDE (UDMA mode 1) to OC3?
  47. How to convert from OC12 to IDE (UDMA mode 1)?
  48. How to convert from IDE (UDMA mode 1) to OC12?
  49. How to convert from OC24 to IDE (UDMA mode 1)?
  50. How to convert from IDE (UDMA mode 1) to OC24?
  51. How to convert from OC48 to IDE (UDMA mode 1)?
  52. How to convert from IDE (UDMA mode 1) to OC48?
  53. How to convert from OC192 to IDE (UDMA mode 1)?
  54. How to convert from IDE (UDMA mode 1) to OC192?
  55. How to convert from OC768 to IDE (UDMA mode 1)?
  56. How to convert from IDE (UDMA mode 1) to OC768?
  57. How to convert from ISDN (single channel) to IDE (UDMA mode 1)?
  58. How to convert from IDE (UDMA mode 1) to ISDN (single channel)?
  59. How to convert from ISDN (dual channel) to IDE (UDMA mode 1)?
  60. How to convert from IDE (UDMA mode 1) to ISDN (dual channel)?
  61. How to convert from modem (110) to IDE (UDMA mode 1)?
  62. How to convert from IDE (UDMA mode 1) to modem (110)?
  63. How to convert from modem (300) to IDE (UDMA mode 1)?
  64. How to convert from IDE (UDMA mode 1) to modem (300)?
  65. How to convert from modem (1200) to IDE (UDMA mode 1)?
  66. How to convert from IDE (UDMA mode 1) to modem (1200)?
  67. How to convert from modem (2400) to IDE (UDMA mode 1)?
  68. How to convert from IDE (UDMA mode 1) to modem (2400)?
  69. How to convert from modem (9600) to IDE (UDMA mode 1)?
  70. How to convert from IDE (UDMA mode 1) to modem (9600)?
  71. How to convert from modem (14.4k) to IDE (UDMA mode 1)?
  72. How to convert from IDE (UDMA mode 1) to modem (14.4k)?
  73. How to convert from modem (28.8k) to IDE (UDMA mode 1)?
  74. How to convert from IDE (UDMA mode 1) to modem (28.8k)?
  75. How to convert from modem (33.6k) to IDE (UDMA mode 1)?
  76. How to convert from IDE (UDMA mode 1) to modem (33.6k)?
  77. How to convert from modem (56k) to IDE (UDMA mode 1)?
  78. How to convert from IDE (UDMA mode 1) to modem (56k)?
  79. How to convert from SCSI (Async) to IDE (UDMA mode 1)?
  80. How to convert from IDE (UDMA mode 1) to SCSI (Async)?
  81. How to convert from SCSI (Sync) to IDE (UDMA mode 1)?
  82. How to convert from IDE (UDMA mode 1) to SCSI (Sync)?
  83. How to convert from SCSI (Fast) to IDE (UDMA mode 1)?
  84. How to convert from IDE (UDMA mode 1) to SCSI (Fast)?
  85. How to convert from SCSI (Fast Ultra) to IDE (UDMA mode 1)?
  86. How to convert from IDE (UDMA mode 1) to SCSI (Fast Ultra)?
  87. How to convert from SCSI (Fast Wide) to IDE (UDMA mode 1)?
  88. How to convert from IDE (UDMA mode 1) to SCSI (Fast Wide)?
  89. How to convert from SCSI (Fast Ultra Wide) to IDE (UDMA mode 1)?
  90. How to convert from IDE (UDMA mode 1) to SCSI (Fast Ultra Wide)?
  91. How to convert from SCSI (Ultra-2) to IDE (UDMA mode 1)?
  92. How to convert from IDE (UDMA mode 1) to SCSI (Ultra-2)?
  93. How to convert from SCSI (Ultra-3) to IDE (UDMA mode 1)?
  94. How to convert from IDE (UDMA mode 1) to SCSI (Ultra-3)?
  95. How to convert from SCSI (LVD Ultra80) to IDE (UDMA mode 1)?
  96. How to convert from IDE (UDMA mode 1) to SCSI (LVD Ultra80)?
  97. How to convert from SCSI (LVD Ultra160) to IDE (UDMA mode 1)?
  98. How to convert from IDE (UDMA mode 1) to SCSI (LVD Ultra160)?
  99. How to convert from IDE (PIO mode 0) to IDE (UDMA mode 1)?
  100. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 0)?
  101. How to convert from IDE (PIO mode 1) to IDE (UDMA mode 1)?
  102. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 1)?
  103. How to convert from IDE (PIO mode 2) to IDE (UDMA mode 1)?
  104. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 2)?
  105. How to convert from IDE (PIO mode 3) to IDE (UDMA mode 1)?
  106. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 3)?
  107. How to convert from IDE (PIO mode 4) to IDE (UDMA mode 1)?
  108. How to convert from IDE (UDMA mode 1) to IDE (PIO mode 4)?
  109. How to convert from IDE (DMA mode 0) to IDE (UDMA mode 1)?
  110. How to convert from IDE (UDMA mode 1) to IDE (DMA mode 0)?
  111. How to convert from IDE (DMA mode 1) to IDE (UDMA mode 1)?
  112. How to convert from IDE (UDMA mode 1) to IDE (DMA mode 1)?
  113. How to convert from IDE (DMA mode 2) to IDE (UDMA mode 1)?
  114. How to convert from IDE (UDMA mode 1) to IDE (DMA mode 2)?
  115. How to convert from IDE (UDMA mode 0) to IDE (UDMA mode 1)?
  116. How to convert from IDE (UDMA mode 1) to IDE (UDMA mode 0)?
  117. How to convert from IDE (UDMA mode 2) to IDE (UDMA mode 1)?
  118. How to convert from IDE (UDMA mode 1) to IDE (UDMA mode 2)?
  119. How to convert from IDE (UDMA mode 3) to IDE (UDMA mode 1)?
  120. How to convert from IDE (UDMA mode 1) to IDE (UDMA mode 3)?
  121. How to convert from IDE (UDMA mode 4) to IDE (UDMA mode 1)?
  122. How to convert from IDE (UDMA mode 1) to IDE (UDMA mode 4)?
  123. How to convert from IDE (UDMA-33) to IDE (UDMA mode 1)?
  124. How to convert from IDE (UDMA mode 1) to IDE (UDMA-33)?
  125. How to convert from IDE (UDMA-66) to IDE (UDMA mode 1)?
  126. How to convert from IDE (UDMA mode 1) to IDE (UDMA-66)?
  127. How to convert from USB to IDE (UDMA mode 1)?
  128. How to convert from IDE (UDMA mode 1) to USB?
  129. How to convert from firewire (IEEE-1394) to IDE (UDMA mode 1)?
  130. How to convert from IDE (UDMA mode 1) to firewire (IEEE-1394)?
  131. How to convert from T0 (payload) to IDE (UDMA mode 1)?
  132. How to convert from IDE (UDMA mode 1) to T0 (payload)?
  133. How to convert from T0 (B8ZS payload) to IDE (UDMA mode 1)?
  134. How to convert from IDE (UDMA mode 1) to T0 (B8ZS payload)?
  135. How to convert from T1 (signal) to IDE (UDMA mode 1)?
  136. How to convert from IDE (UDMA mode 1) to T1 (signal)?
  137. How to convert from T1 (payload) to IDE (UDMA mode 1)?
  138. How to convert from IDE (UDMA mode 1) to T1 (payload)?
  139. How to convert from T1Z (payload) to IDE (UDMA mode 1)?
  140. How to convert from IDE (UDMA mode 1) to T1Z (payload)?
  141. How to convert from T1C (signal) to IDE (UDMA mode 1)?
  142. How to convert from IDE (UDMA mode 1) to T1C (signal)?
  143. How to convert from T1C (payload) to IDE (UDMA mode 1)?
  144. How to convert from IDE (UDMA mode 1) to T1C (payload)?
  145. How to convert from T2 (signal) to IDE (UDMA mode 1)?
  146. How to convert from IDE (UDMA mode 1) to T2 (signal)?
  147. How to convert from T3 (signal) to IDE (UDMA mode 1)?
  148. How to convert from IDE (UDMA mode 1) to T3 (signal)?
  149. How to convert from T3 (payload) to IDE (UDMA mode 1)?
  150. How to convert from IDE (UDMA mode 1) to T3 (payload)?
  151. How to convert from T3Z (payload) to IDE (UDMA mode 1)?
  152. How to convert from IDE (UDMA mode 1) to T3Z (payload)?
  153. How to convert from T4 (signal) to IDE (UDMA mode 1)?
  154. How to convert from IDE (UDMA mode 1) to T4 (signal)?
  155. How to convert from E.P.T.A. 1 (signal) to IDE (UDMA mode 1)?
  156. How to convert from IDE (UDMA mode 1) to E.P.T.A. 1 (signal)?
  157. How to convert from E.P.T.A. 1 (payload) to IDE (UDMA mode 1)?
  158. How to convert from IDE (UDMA mode 1) to E.P.T.A. 1 (payload)?
  159. How to convert from E.P.T.A. 2 (signal) to IDE (UDMA mode 1)?
  160. How to convert from IDE (UDMA mode 1) to E.P.T.A. 2 (signal)?
  161. How to convert from E.P.T.A. 2 (payload) to IDE (UDMA mode 1)?
  162. How to convert from IDE (UDMA mode 1) to E.P.T.A. 2 (payload)?
  163. How to convert from E.P.T.A. 3 (signal) to IDE (UDMA mode 1)?
  164. How to convert from IDE (UDMA mode 1) to E.P.T.A. 3 (signal)?
  165. How to convert from E.P.T.A. 3 (payload) to IDE (UDMA mode 1)?
  166. How to convert from IDE (UDMA mode 1) to E.P.T.A. 3 (payload)?
  167. How to convert from H0 to IDE (UDMA mode 1)?
  168. How to convert from IDE (UDMA mode 1) to H0?
  169. How to convert from H11 to IDE (UDMA mode 1)?
  170. How to convert from IDE (UDMA mode 1) to H11?
  171. How to convert from H12 to IDE (UDMA mode 1)?
  172. How to convert from IDE (UDMA mode 1) to H12?
  173. How to convert from Virtual Tributary 1 (signal) to IDE (UDMA mode 1)?
  174. How to convert from IDE (UDMA mode 1) to Virtual Tributary 1 (signal)?
  175. How to convert from Virtual Tributary 1 (payload) to IDE (UDMA mode 1)?
  176. How to convert from IDE (UDMA mode 1) to Virtual Tributary 1 (payload)?
  177. How to convert from Virtual Tributary 2 (signal) to IDE (UDMA mode 1)?
  178. How to convert from IDE (UDMA mode 1) to Virtual Tributary 2 (signal)?
  179. How to convert from Virtual Tributary 2 (payload) to IDE (UDMA mode 1)?
  180. How to convert from IDE (UDMA mode 1) to Virtual Tributary 2 (payload)?
  181. How to convert from Virtual Tributary 6 (signal) to IDE (UDMA mode 1)?
  182. How to convert from IDE (UDMA mode 1) to Virtual Tributary 6 (signal)?
  183. How to convert from Virtual Tributary 6 (payload) to IDE (UDMA mode 1)?
  184. How to convert from IDE (UDMA mode 1) to Virtual Tributary 6 (payload)?
  185. How to convert from STS1 (signal) to IDE (UDMA mode 1)?
  186. How to convert from IDE (UDMA mode 1) to STS1 (signal)?
  187. How to convert from STS1 (payload) to IDE (UDMA mode 1)?
  188. How to convert from IDE (UDMA mode 1) to STS1 (payload)?
  189. How to convert from STS3 (signal) to IDE (UDMA mode 1)?
  190. How to convert from IDE (UDMA mode 1) to STS3 (signal)?
  191. How to convert from STS3 (payload) to IDE (UDMA mode 1)?
  192. How to convert from IDE (UDMA mode 1) to STS3 (payload)?
  193. How to convert from STS3c (signal) to IDE (UDMA mode 1)?
  194. How to convert from IDE (UDMA mode 1) to STS3c (signal)?
  195. How to convert from STS3c (payload) to IDE (UDMA mode 1)?
  196. How to convert from IDE (UDMA mode 1) to STS3c (payload)?
  197. How to convert from STS12 (signal) to IDE (UDMA mode 1)?
  198. How to convert from IDE (UDMA mode 1) to STS12 (signal)?
  199. How to convert from STS24 (signal) to IDE (UDMA mode 1)?
  200. How to convert from IDE (UDMA mode 1) to STS24 (signal)?
  201. How to convert from STS48 (signal) to IDE (UDMA mode 1)?
  202. How to convert from IDE (UDMA mode 1) to STS48 (signal)?
  203. How to convert from STS192 (signal) to IDE (UDMA mode 1)?
  204. How to convert from IDE (UDMA mode 1) to STS192 (signal)?
  205. How to convert from STM-1 (signal) to IDE (UDMA mode 1)?
  206. How to convert from IDE (UDMA mode 1) to STM-1 (signal)?
  207. How to convert from STM-4 (signal) to IDE (UDMA mode 1)?
  208. How to convert from IDE (UDMA mode 1) to STM-4 (signal)?
  209. How to convert from STM-16 (signal) to IDE (UDMA mode 1)?
  210. How to convert from IDE (UDMA mode 1) to STM-16 (signal)?
  211. How to convert from STM-64 (signal) to IDE (UDMA mode 1)?
  212. How to convert from IDE (UDMA mode 1) to STM-64 (signal)?

What Is This Tool?

This converter allows you to translate data transfer measurements from IDE (UDMA mode 1) to IDE (DMA mode 2), which are legacy transfer modes used by older Parallel ATA (IDE) hardware. It helps in diagnosing, configuring, and benchmarking vintage PC storage interfaces.

How to Use This Tool?

  • Enter the value in IDE (UDMA mode 1) units you wish to convert.
  • Select IDE (UDMA mode 1) as the source unit.
  • Select IDE (DMA mode 2) as the target unit.
  • Click the convert button to see the equivalent data transfer rate.
  • Use the results to aid in configuring or diagnosing legacy IDE device settings.

Key Features

  • Converts between IDE (UDMA mode 1) and IDE (DMA mode 2) data transfer rates.
  • Based on recognized standards for older Parallel ATA (IDE) devices.
  • Supports benchmark and configuration tasks for legacy PATA hardware.
  • Browser-based tool requiring no installation.
  • Presents conversion results in an easy-to-understand format.

Examples

  • 1 IDE (UDMA mode 1) equals approximately 1.506 IDE (DMA mode 2).
  • 2 IDE (UDMA mode 1) converts to roughly 3.012 IDE (DMA mode 2).

Common Use Cases

  • Tuning BIOS or drive settings for vintage PCs using different IDE modes.
  • Benchmarking transfer speeds of older IDE hard disks and optical drives.
  • Troubleshooting transfer errors related to cable or controller compatibility.
  • Assisting firmware or driver development for legacy storage devices.
  • Confirming active DMA modes to understand throughput and CPU load.

Tips & Best Practices

  • Use this converter to ensure legacy devices run with appropriate transfer settings.
  • Verify cable quality and controller compatibility alongside mode adjustments.
  • Compare conversion results with actual performance metrics for diagnosis.
  • Maintain backups before changing BIOS or firmware settings.
  • Be mindful that these modes are obsolete in modern computing contexts.

Limitations

  • Conversion reflects theoretical maximum transfer rates, not actual speeds.
  • Performance depends on hardware age, cable quality, and system factors.
  • Both IDE (UDMA mode 1) and IDE (DMA mode 2) belong to legacy Parallel ATA interfaces.
  • These modes are generally not applicable to current modern storage technologies.

Frequently Asked Questions

What is IDE (UDMA mode 1)?
It is an Ultra DMA transfer mode of the Parallel ATA interface offering a theoretical maximum transfer rate around 25 MB/s, used in older PATA devices for timing and error-checking.

How does IDE (DMA mode 2) differ from IDE (UDMA mode 1)?
IDE (DMA mode 2) is a Multiword DMA mode allowing direct memory access with less CPU overhead, providing higher throughput compared to certain PIO modes in legacy PATA devices.

Why convert between these two transfer modes?
Users convert to compare and optimize legacy PATA transfer settings, assist BIOS or driver configuration, and troubleshoot performance or compatibility issues.

Key Terminology

IDE (UDMA mode 1)
An Ultra DMA mode for Parallel ATA devices allowing about 25 MB/s theoretical maximum transfer rates, used for controlling timing and error-checking in legacy PATA hardware.
IDE (DMA mode 2)
A Multiword DMA transfer mode in the Parallel ATA family that allows IDE devices to move data directly with less CPU intervention and higher throughput than PIO modes.
Parallel ATA (PATA)
A legacy computer bus interface standard for connecting storage devices like hard drives and optical drives, using parallel signaling.

Quick Knowledge Check

What type of interface do IDE (UDMA mode 1) and IDE (DMA mode 2) belong to?
What is one purpose of converting from IDE (UDMA mode 1) to IDE (DMA mode 2)?
Which statement is true about IDE (DMA mode 2)?