9.9.4 Replacing a riser card 317
9.10 Flash backup unit (FBU) 320
9.10.1 Positions of the FBUs 320
9.10.2 Installing an FBU 321
9.10.3 Removing an FBU 326
9.10.4 Replacing an FBU 328
10 Main memory
331
10.1 Safety notes 331
10.2 Basic information 332
10.2.1 Slots and features 332
10.2.2 General memory population rules 335
10.2.3 DDR5 only - memory population rules 337
10.3 Installing memory modules 341
10.4 Removing memory modules 344
10.5 Replacing memory modules 345
10.6 Handling memory dummy modules 347
11 Processor (CPU) 349
11.1 Safety notes 349
11.2 Basic information 350
11.3 Upgrading to 2 CPUs configuration 352
11.4 Handling the CPU dummy cover 362
11.5 Replacing a CPU or heat sink 365
Content
Upgrade and Maintenance Manual RX2540 M7