Table of Contents
Advertisement
Chapter 3. Replacing coprocessor batteries
This section describes the way to replace the batteries on the coprocessor.
Before you begin
Two lithium batteries mounted on the IBM 4767-002 PCIe Cryptographic
Coprocessor supply power to the card's components, including protected memory.
Your support software or application software can query the coprocessor to
determine whether the batteries need to be replaced.
When shipped from the factory, the protected memory contains a certified device
key. If your coprocessor has been initialized by support software, the protected
memory contains secret data, including a master cryptographic key, user profiles,
and user passwords.
Attention: If you remove either of the two batteries without first backing up the
power by connecting a battery tray with a fresh battery in it, the data in protected
memory can be lost. This renders the coprocessor permanently inoperable. The
battery-replacement kit for the coprocessor provides the battery tray required to
provide backup power while you replace the batteries. The kit also includes two
replacement batteries. Refer to Table 5.
To order the kit, contact your local IBM System z
service personnel may replace the battery.
To replace the on-board batteries, complete the following steps:
Procedure
© Copyright IBM Corp. 2016
Table 5. Part numbers for battery-replacement kits
FRU PN Description
45D5803 Battery-replacement kit
1. Before handling coprocessor batteries, refer to the caution notice (C002) in
Table 2 on page x.
2. To replace the coprocessor batteries, first have on hand the following:
v Two replacement batteries (VARTA CR 2/3 AA lithium manganese dioxide
3V are required)
v One required battery tray with connecting wires
v One replacement battery attention label
v A small screwdriver or similar object with a blunt tip
Refer to Table 5 for ordering a battery-replacement kit.
Note: Failure to use the required backup battery tray along with a fresh and
tested battery can render the coprocessor permanently inoperable and result in
permanent loss of critical data. The battery in the tray while attached to the
coprocessor provides backup power while replacing coprocessor batteries.
Contents
v Two replacement batteries
v One battery tray with connecting wires
v One battery-attention label
®
representative. Only trained
7
Advertisement
Table of Contents
