Lenovo 3057 Maintenance Manual page 136

6. Insert one side of the TR 300 Key under one of the retaining clips on the iButton socket. Then, carefully
press the other side of the TR 300 Key straight down until it snaps into position and is secured by the
two retaining clips on the iButton socket.
Figure 79. Installing the TR 300 Key
7. If you have lifted up the riser card assembly 1, reinstall it into the chassis. See "Replacing the riser
card assembly 1" on page 163.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation, go to "Completing the parts replacement" on page 186. Then, the onboard
SAS software RAID 5 is available for your server if your server has the required number of hard disk drives
installed. To configure RAID, see "Configuring RAID" on page 72.
Removing the TR 300 Key
Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 83.
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ThinkServer RD430 Hardware Maintenance Manual