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How to Convert from IDE (UDMA-33) to IDE (PIO mode 3)?
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How to Convert from IDE (UDMA-33) to IDE (PIO mode 3)?

Convert between IDE (UDMA-33) and IDE (PIO mode 3), two legacy Parallel ATA data transfer modes, to compare performance and configure old hardware accurately.

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

IDE (UDMA-33) to IDE (PIO mode 3) Conversion Table

IDE (UDMA-33) IDE (PIO mode 3)

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-33) to IDE (PIO mode 3) Conversion Table
IDE (UDMA-33) IDE (PIO mode 3)

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

What Is This Tool?

This converter helps you transform values between IDE (UDMA-33) and IDE (PIO mode 3) data transfer modes, both used in older Parallel ATA (PATA) storage devices. It assists in understanding performance differences and configuring legacy systems.

How to Use This Tool?

  • Enter the value in IDE (UDMA-33) mode you want to convert.
  • Select IDE (PIO mode 3) as the target transfer mode.
  • Click convert to get the equivalent value based on the provided conversion rate.

Key Features

  • Converts data transfer units between IDE (UDMA-33) and IDE (PIO mode 3).
  • Supports benchmarking and troubleshooting legacy PATA drives.
  • Browser-based and easy to use with no installation required.

Examples

  • 1 IDE (UDMA-33) equals approximately 2.97 IDE (PIO mode 3).
  • 5 IDE (UDMA-33) converts to about 14.86 IDE (PIO mode 3).

Common Use Cases

  • Benchmarking or reporting throughput on legacy PATA hard drives and optical drives.
  • Configuring or troubleshooting BIOS/controller transfer modes on older PCs.
  • Comparing legacy PATA performance when upgrading or replacing drives.
  • Testing performance or compatibility in embedded or retrocomputing systems.

Tips & Best Practices

  • Ensure your system supports the selected transfer mode before testing or configuring.
  • Use this conversion to understand relative throughput differences between DMA and CPU-driven modes.
  • Apply conversions for benchmarking and compatibility checks on vintage hardware.

Limitations

  • Conversion is theoretical and based on maximum burst rates, not actual performance.
  • Performance may vary due to system overhead, hardware conditions, and software.
  • IDE (PIO mode 3) is CPU-intensive and slower, limiting its use in modern systems.

Frequently Asked Questions

What is IDE (UDMA-33)?
IDE (UDMA-33) is a Parallel ATA data transfer mode that uses DMA to move data, with a theoretical max burst rate of 33.3 MB/s.

How does IDE (PIO mode 3) differ from IDE (UDMA-33)?
IDE (PIO mode 3) uses programmed I/O driven by the CPU and has a lower theoretical throughput of about 11.1 MB/s, unlike the DMA-based IDE (UDMA-33).

Why convert between these two modes?
Conversion helps compare performance, configure legacy systems correctly, and troubleshoot transfer mode issues on older devices.

Key Terminology

IDE (UDMA-33)
A Parallel ATA data transfer mode using direct memory access with a max theoretical burst rate of 33.3 MB/s, typical for legacy hard drives.
IDE (PIO mode 3)
A programmed I/O transfer mode driven by the CPU with about 11.1 MB/s max throughput, used for compatibility with older IDE devices.
DMA
Direct Memory Access, a data transfer method allowing peripherals to send data to memory without CPU involvement.

Quick Knowledge Check

Which method drives data transfer in IDE (PIO mode 3)?
What is the theoretical maximum burst rate of IDE (UDMA-33)?
Why is IDE (PIO mode 3) less common in modern systems?

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