Supermicro SuperServer 120U-TNR User Manual page 5

Circuit Overloading ........................................................................................................23
Reliable Ground .............................................................................................................23
2.4 Installing the Rails ..............................................................................................................24
Identifying the Rails ...........................................................................................................24
Installing the Outer Rails onto the Rack ...........................................................................25
2.5 Installing the Chassis into a Rack ......................................................................................26
Removing the Chassis from the Rack ..............................................................................27
Chapter 3 Maintenance and Component Installation
3.1 Removing Power ...............................................................................................................28
3.2 Accessing the System ........................................................................................................29
3.3 Processor and Heatsink Installation ...................................................................................30
The Processor Carrier Assembly ......................................................................................31
The Processor Heatsink Module (PHM) ...........................................................................33
Installing the PHM into the CPU Socket ...........................................................................34
Removing the PHM from the CPU Socket .......................................................................37
Removing the Processor Carrier Assembly from the PHM ..............................................38
Removing the Processor from the Carrier Assembly........................................................39
3.4 Memory ...............................................................................................................................40
Memory Support ................................................................................................................40
Guidelines Regarding Mixing DIMMs ............................................................................41
DDR4 Memory Population Guidelines ..............................................................................42
Optane PMem 200 Series .................................................................................................43
PMem Notes ..................................................................................................................44
Installing Memory ..............................................................................................................45
3.5 Motherboard Battery ...........................................................................................................46
3.6 Storage Drives ....................................................................................................................47
Installing Drives .................................................................................................................47
Hot-Swap for NVMe Drives ...............................................................................................48
Checking the Temperature of an NVMe Drive ..................................................................49
3.7 System Cooling ..................................................................................................................49
Fans ..................................................................................................................................49
Air Shrouds .......................................................................................................................50
3.8 Power Supply .....................................................................................................................51
Power Supply LEDs ..........................................................................................................51
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