Online Data Transfer Units Converter
How to Convert from IDE (PIO mode 4) to IDE (DMA mode 2)?

How to Convert from IDE (PIO mode 4) to IDE (DMA mode 2)?

Learn how to convert data transfer units between IDE (PIO mode 4) and IDE (DMA mode 2), two legacy ATA/IDE storage device modes, to better understand performance differences and optimize configurations.

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

IDE (PIO mode 4) to IDE (DMA mode 2) Conversion Table

IDE (PIO mode 4) 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 (PIO mode 4) to IDE (DMA mode 2) Conversion Table
IDE (PIO mode 4) IDE (DMA mode 2)

Explore More Data Transfer Units Converter

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

What Is This Tool?

This converter allows you to switch between IDE (PIO mode 4) and IDE (DMA mode 2) units, representing data transfer modes for ATA/IDE storage devices. It helps compare these legacy transfer methods to assist in diagnostics, benchmarking, and system optimization.

How to Use This Tool?

  • Enter the value in IDE (PIO mode 4) that you want to convert
  • Select IDE (DMA mode 2) as the target unit
  • Click convert to see the equivalent number of IDE (DMA mode 2) units
  • Use results to evaluate legacy storage performance and system configurations

Key Features

  • Supports conversion between IDE (PIO mode 4) and IDE (DMA mode 2) with a 1:1 rate
  • Facilitates performance comparison of legacy ATA/IDE storage transfer modes
  • Browser-based and easy to use without additional software
  • Helps balance CPU utilization and throughput understanding for legacy systems
  • Ideal for troubleshooting and configuring older PC hardware and embedded devices

Examples

  • 2 IDE (PIO mode 4) units equal 2 IDE (DMA mode 2) units
  • 5 IDE (PIO mode 4) units equal 5 IDE (DMA mode 2) units

Common Use Cases

  • Configuring or diagnosing legacy IDE/ATA drives and BIOS or driver settings on older PCs
  • Benchmarking legacy storage devices to compare PIO and DMA transfer efficiencies
  • Ensuring compatibility in retro-computing or industrial environments relying on ATA timing modes
  • Optimizing data transfer mode selection to balance CPU load and throughput on legacy hardware
  • Troubleshooting storage devices by verifying active transfer modes for performance analysis

Tips & Best Practices

  • Always confirm the hardware supports the transfer mode before configuring
  • Use this conversion to understand relative throughput while accounting for CPU usage differences
  • Apply conversions in diagnostic contexts involving legacy ATA/IDE interfaces only
  • Consider firmware or BIOS settings when evaluating transfer modes and performance
  • Be aware that equal unit values do not guarantee equal transfer efficiency

Limitations

  • Conversion rate is 1:1 but does not represent identical CPU utilization or transfer efficiency between the modes
  • Applicable only to legacy ATA/IDE technologies, not suitable for newer storage standards like SATA or NVMe
  • Does not capture timing or hardware-specific characteristics beyond unit conversion

Frequently Asked Questions

What does IDE (PIO mode 4) mean?
IDE (PIO mode 4) is a CPU-controlled data transfer mode for ATA/IDE drives characterized by specific timing and handshaking, with a maximum throughput of about 16.7 MB/s.

How is IDE (DMA mode 2) different from PIO mode 4?
IDE (DMA mode 2) allows direct memory access for data transfers with minimal CPU involvement, providing higher throughput and lower CPU overhead compared to PIO modes.

Can this converter be used for modern drives like SATA or NVMe?
No, this conversion applies only to legacy ATA/IDE transfer modes and is not relevant for modern storage interfaces such as SATA or NVMe.

Key Terminology

IDE (PIO mode 4)
A Programmed Input/Output timing mode for ATA/IDE drives where the CPU directly controls data transfers.
IDE (DMA mode 2)
A Multiword DMA mode 2 for Parallel ATA allowing data transfer with direct memory access and minimal CPU intervention.
ATA/IDE
Legacy interfaces for connecting storage devices, including hard drives and optical drives.

Quick Knowledge Check

What is the conversion rate between IDE (PIO mode 4) and IDE (DMA mode 2)?
Which mode involves less CPU utilization during data transfer?
Is this conversion relevant for SATA drives?