HMC internal modem compatibility notice

7310-C04 and 7310-C05 HMC models

IBM has identified a compatibility issue with the HMC model 7310-C04 and 7310-C05 with some internal modems. The following corrective service packages have been created to check for the compatibility problem:

  • HMC Version 4: PTF MH00854
  • HMC Version 5: PTF MH00840
  • HMC Version 6: PTF MH00841

(To obtain the appropriate PTF, refer to the "Corrective service" page for your current HMC release: V4.x, V5.x or V6.x.)

If you have a 7310-C04 or 7310-C05, install the appropriate PTF for your current release. Next, follow the instructions included in the Readme (the "View" link for the PTF) to check for modem compatibility and, if needed, obtain a modem replacement. Do not upgrade to HMC Version 6 unless your modem has passed the compatibility check.