Type 4758 - Cryptographic Coprocessor Disablement - IBM iSeries 270 Service Manual

Note: The 4758-023 card contains four batteries, even though only two batteries are shown in the
figure above. Battery 3 is directly above Battery 1, and Battery 4 is directly above Battery 2.
3. Open both of the battery replacement kits. Insert one of the new batteries into the battery tray
provided with the kit. The battery '+' must be oriented in the battery tray with the same polarity
matching the '+' on the tray.
4. Connect the battery tray's cable to the J3 connector on the 4758 card. This maintains battery power
to the card while the new batteries are installed.
5. Remove and discard the two battery warning labels which cover both sets of batteries.
6. Replace the battery in the Battery 1, 2, and 3 positions with a new battery. The battery '+' must be
oriented in the holder with the same polarity matching the '+' on the holder.
7. Replace the battery in the Battery 4 position with the battery in the battery tray. The battery '+' must
be oriented in the holder with the same polarity matching the '+' on the holder.
8. Remove the battery tray from the J3 connector and discard it.
9. Place one of the new Battery Warning labels (PN 04K9421) over the two new batteries in Battery
positions 1 and 2. Place the other new Battery Warning label over the two new batteries in Battery
positions 3 and 4.
10. Reinstall the card.
This ends the procedure.

Type 4758 - Cryptographic coprocessor disablement

For use by authorized service providers.
Attention: For security reasons, use the following procedure when replacing the cryptographic
coprocessor.
Use this procedure to properly disable the Type 4758 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 battery. To avoid possible explosion, do not burn or charge the battery.
Exchange only with the IBM
regulations. (RSFTC227)
1. 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 the Remove and replace
procedures, choose the correct model, and then the Cards (concurrent) procedure.
2. Find the location of the four lithium batteries. They are located in adjacent holders, with the Battery 2
above the J3 connector. Refer to the illustration below.
Figure 1. Battery Locations on the 4758 PCI Cryptographic Coprocessor
(R)
-approved part. Discard the battery as instructed by local
Analyze hardware problems
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