Online Data Transfer Units Converter
How to Convert from IDE (UDMA mode 4) to IDE (DMA mode 1)?

How to Convert from IDE (UDMA mode 4) to IDE (DMA mode 1)?

Easily convert data transfer rates from IDE (UDMA mode 4) to IDE (DMA mode 1) using our online converter designed for legacy IDE/ATA hardware configurations and troubleshooting.

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

IDE (UDMA mode 4) to IDE (DMA mode 1) Conversion Table

IDE (UDMA mode 4) IDE (DMA 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 (UDMA mode 4) to IDE (DMA mode 1) Conversion Table
IDE (UDMA mode 4) IDE (DMA mode 1)

Explore More Data Transfer Units Converter

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

What Is This Tool?

This converter allows you to transform data transfer values measured in IDE (UDMA mode 4) to equivalent values in IDE (DMA mode 1), facilitating comparisons and configuration of legacy IDE storage device transfer modes.

How to Use This Tool?

  • Enter the value in IDE (UDMA mode 4) you want to convert
  • Select IDE (DMA mode 1) as the target unit
  • Click convert to see the corresponding transfer rate
  • Use the output to compare or configure DMA settings on legacy systems

Key Features

  • Converts data transfer rates between IDE (UDMA mode 4) and IDE (DMA mode 1)
  • Supports legacy IDE/ATA storage interface measurements
  • Browser-based and easy-to-use interface
  • Helpful for BIOS/firmware troubleshooting and performance tuning
  • Provides practical examples for immediate reference

Examples

  • 1 IDE (UDMA mode 4) converts to approximately 4.96 IDE (DMA mode 1)
  • 2 IDE (UDMA mode 4) converts to roughly 9.92 IDE (DMA mode 1)

Common Use Cases

  • Connecting or troubleshooting PATA/IDE drives in older PCs supporting ATA-66
  • Benchmarking or maintaining vintage storage hardware
  • Configuring BIOS or OS DMA transfer modes for legacy devices
  • Performing data recovery on older IDE drives
  • Optimizing performance in embedded systems with legacy IDE controllers

Tips & Best Practices

  • Ensure you use an 80-conductor IDE cable when working with IDE (UDMA mode 4) for reliable signaling
  • Use this conversion to verify compatibility and optimize transfer speeds on legacy hardware
  • Consult BIOS or firmware settings after conversion to apply the appropriate DMA mode
  • Consider hardware and system health factors which may affect actual transfer speeds

Limitations

  • Conversion rates represent theoretical maximum throughput and may not reflect real-world speeds
  • Actual data transfer can be influenced by device condition, cable quality, and system configuration
  • The tool does not model variations due to hardware aging or firmware differences

Frequently Asked Questions

What is IDE (UDMA mode 4)?
IDE (UDMA mode 4), also called Ultra DMA/66 (ATA-4), is a transfer mode in the IDE/ATA standard with a maximum theoretical throughput of about 66.7 megabytes per second, requiring an 80-conductor IDE cable.

How does IDE (DMA mode 1) differ from IDE (UDMA mode 4)?
IDE (DMA mode 1) is a Direct Memory Access mode for moderate-speed transfers on legacy IDE hardware with specific timing constraints, whereas IDE (UDMA mode 4) offers higher throughput with Ultra DMA protocol support.

Why would I need to convert between these IDE modes?
Converting helps compare transfer rates, configure BIOS or firmware settings, and optimize or troubleshoot data transfers on legacy IDE devices.

Key Terminology

IDE (UDMA mode 4)
A Parallel ATA transfer mode supporting Ultra DMA at about 66.7 MB/s, requiring an 80-conductor cable for stable signaling.
IDE (DMA mode 1)
A Direct Memory Access mode for IDE devices enabling moderate-speed data transfers with specific timing within the ATA specification.
DMA (Direct Memory Access)
A method allowing devices to transfer data to system memory with minimal CPU involvement.

Quick Knowledge Check

What cable type is required for reliable IDE (UDMA mode 4) operation?
What does IDE (DMA mode 1) primarily reduce during data transfer?
Why are conversions between these IDE modes useful?