Disabling the cryptographic coprocessor on a type 4764 card

During disablement, the contents of the coprocessor's protected memory will be set to zeroes. The cryptographic master key and other data stored in the protected memory will be lost.

Attention: For security, use the following procedure when replacing the cryptographic coprocessor.

Use this procedure to properly and permanently disable the Type 4764 PCI cryptographic coprocessor card. During disablement, the contents of the coprocessor's protected memory will be set to zeroes. The cryptographic master key and other data stored in the protected memory will be lost.

CAUTION:

The battery is a lithium ion battery. To avoid possible explosion, do not burn. Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C007)

Remove the cryptographic coprocessor card using the Cards (concurrent) remove and replace procedure for the system unit or tower in which the card is located. See Removing and replacing parts, choose the correct model, and then the Cards (concurrent) procedure.
Find the location of the lithium batteries. They are located in adjacent holders, with the battery 2 above the J10 connector. Refer to the illustration below.
Figure 1. Battery locations on the PCI cryptographic coprocessor

Attention: The loss of battery power erases data stored in the card's protected memory and renders the card useless.
Remove battery 1 and then battery 2.
The PCI cryptographic coprocessor card has been disabled. You can now install the new card. This ends the procedure.