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

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

Learn how to convert data transfer rates between IDE (DMA mode 2) and IDE (UDMA mode 1) modes, used in legacy PATA/IDE hardware for optimized storage performance and troubleshooting.

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

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

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

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

Explore More Data Transfer Units Converter

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

What Is This Tool?

This converter allows users to translate transfer mode values from IDE (DMA mode 2), a Multiword DMA mode, to IDE (UDMA mode 1), an Ultra DMA mode. Both relate to legacy Parallel ATA (PATA/IDE) interfaces commonly found in older storage devices and help balance transfer speed and compatibility.

How to Use This Tool?

  • Enter the value in IDE (DMA mode 2) units you want to convert.
  • Select IDE (UDMA mode 1) as the target unit for conversion.
  • Click the convert button to see the equivalent value in IDE (UDMA mode 1).
  • Use the converted result to aid in device configuration or performance analysis.

Key Features

  • Supports conversion between two legacy IDE data transfer modes.
  • Based on defined theoretical conversion rate between IDE (DMA mode 2) and IDE (UDMA mode 1).
  • Useful for configuring or diagnosing older PATA/IDE hard drives and optical drives.
  • Facilitates benchmarking and troubleshooting vintage storage devices.
  • Browser-based tool that is easy to use with instant conversion.

Examples

  • 1 IDE (DMA mode 2) equals 0.664 IDE (UDMA mode 1).
  • 5 IDE (DMA mode 2) converts to 3.32 IDE (UDMA mode 1) by multiplying 5 by 0.664.

Common Use Cases

  • Configuring legacy PATA/IDE hard drives and optical drives to use DMA transfer modes.
  • BIOS or firmware setup for selecting appropriate IDE transfer modes on vintage PCs.
  • Benchmarking older IDE devices by relating DMA and UDMA mode performance values.
  • Troubleshooting data transfer errors or compatibility issues in legacy storage systems.

Tips & Best Practices

  • Use this tool to verify or compare transfer modes during hardware configuration.
  • Consult device documentation when adjusting BIOS or driver settings for IDE devices.
  • Keep in mind cable quality and controller compatibility can affect real-world transfer rates.
  • Use the conversion as a guide to balance throughput and error handling on legacy systems.

Limitations

  • Both IDE (DMA mode 2) and IDE (UDMA mode 1) are legacy modes with limited modern hardware support.
  • The conversion rate represents theoretical maxima and actual performance may differ based on cable and system factors.
  • Conversion reflects relative throughput but cannot guarantee exact data rates in all environments.

Frequently Asked Questions

What does IDE (DMA mode 2) mean?
It is a Multiword DMA transfer mode in the Parallel ATA (IDE) interface that allows the device to transfer data directly to or from system memory with less CPU usage.

Why convert IDE (DMA mode 2) to IDE (UDMA mode 1)?
Users convert between these to compare or set compatible transfer modes on legacy systems, balancing throughput performance and timing/error management.

Are these transfer modes supported on modern hardware?
No, both are legacy modes primarily used in older PATA/IDE devices with limited or no support in current hardware.

Key Terminology

IDE (DMA mode 2)
A Multiword DMA transfer mode in the Parallel ATA interface that enables efficient data movement with minimal CPU overhead on legacy devices.
IDE (UDMA mode 1)
An Ultra DMA transfer mode for PATA devices offering a theoretical throughput of about 25 MB/s used for timing and error-checking.
PATA/IDE
Parallel ATA, also known as IDE, is an interface standard for connecting storage devices to a computer, used predominantly in legacy systems.

Quick Knowledge Check

Which interface do IDE (DMA mode 2) and IDE (UDMA mode 1) belong to?
What is a key use of converting IDE (DMA mode 2) to IDE (UDMA mode 1)?
What does the conversion rate 1 IDE (DMA mode 2) = 0.664 IDE (UDMA mode 1) represent?