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ThinkPad 390 DVD/FDD Bay Drive - Overview

At a glance
The DVD/FDD drive upgrade is available for selected ThinkPad 390 and 1700 model i Series Systems. ThinkPad 390 models with Pentium MMX 233Mhz(1) system processors (model 2XX) are not supported. All other ThinkPad 390 and i Series 1700 model Systems are supported.

  • Supports all industry standard DVD and CD-ROM applications
  • DVD movie playback on all supported ThinkPad 390 and i Series 1700
  • Model Systems via included software
  • Includes industry standard 1.44 MB diskette drive
  • Easy slide-in installation
  • Enables viewing of up to 17 GB of DVD content on a single DVD disc

(1) MHz only measures microprocessor internal clock speed, not application performance. Many factors affect application performance.

1 year limited Customer Carry-In Exchange

One box containing

  • DVD/FDD Drive Assembly
  • Media Group
  • Publications

Marketing and FRU part numbers


Marketing part number -> 05K8921
FRU part number -> 05K8937

Additional part numbers

Worldwide retail information

Retail Model Number -> TP921
Retail UPC Code -> 0-87944-45909-5

Product dates


Announce Date-> 03/17/99
Planned Availability Date-> 04/30/99

Technical specifications
Performance Specifications as known at time of announcement
Data transfer rate

  • 1,352 to 3,268 Kbps for DVDde-2
  • 1,200 to 3,000 Kbps for CD mode 1
  • 684.4 to 1,587.8 Kbps for CD mode 2
  • PIO mode 4 data transfer without I/O channel ready at 16.7 Mbps
  • DMA-multiword mode 2 data transfer at 16.7 Mbps

Technical information

  • ANSI X3T9.2/791D
  • AT Attach command set SSF 8020 Revision 2.6
  • AT Attach packet interface for DVD-ROM SFF 8090 Revision 1.0
  • Read only on:
  • DV ROM at 1X - 2.4X
  • CD-ROM at 8.6X - 20X
  • CD audio at 4X - 9.3X
  • CD-RW at 4X - 9.3X
  • 128K Data Buffer
  • Electrical eject tray with disk clamp
  • CD-DA audio playback and digital data transfer
  • Unbalance disk detection/spin down function
  • CD-DA audio play with the eject button
  • Regional protection code 2 (RPC2)

Physical, Environmental, and Compatibility Specifications as known at time of announcement


  • 1.11 lbs
  • 505 g


  • 1.18 inches
  • 30.0 mm


  • 5.71 inches
  • 145.0 mm


  • 6.06 inches
  • 154.0 mm

Operating temperature

  • Between 5 degrees Celcius and 35 degrees Celcius
  • Between 41 degrees Fahrenheit and 95 degrees Fahrenheit

Relative humidity

  • Operating between 8% and 95%

Agency approvals

  • CE Mark
  • UL
  • CSA
  • TUV

ENERGY STAR-compliant

The ENERGY STAR emblem does not represent EPA endorsement of any product or service.

Hardware requirements for systems
The ThinkPad 390 DVD/FDD Bay Drive is supported on all models of the following systems:

  • ThinkPad 390 (2626) (except 2XX models)
  • ThinkPad i-Series 17xx (2627)

Supported operating systems

  • Microsoft MS-DOS 6.22
  • Windows for Workgroups 3.11
  • Windows 95, Windows 98
  • Windows NT 4.0 (does not support DVD movie playback)
  • PC DOS 6.3, 7.0, and 2000

Some configurations may not be supported

Supported software
Not Applicable


Document Note(s)

  1. The symbol * is used to denote that the information is currently unavailable for this product.
  2. All dates are represented in the US English format of mm/dd/yyyy (where mm=month, dd=day, yyyy=year).
  3. FRU stands for Field Replacement Unit. It is the part number used for ordering service/replacement parts.
  4. Effective Withdrawal means that on the given date the products will have been withdrawn from marketing. After that date, the product can not be obtained directly.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Document ID : PD005213
Legacy Document ID : LWIK-46JJKP
Last Updated :
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