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doc_trecs:server_installation [2022/04/08 12:16] – vordoc_trecs:server_installation [2022/04/08 12:32] (current) – vor
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 As the standard 2 RU chassis is based on Supermicro SC825, please refer to the official [[https://embedded.christmann.info/wp-content/uploads/2022/04/tRECS_Chassis_SC825.pdf|Chassis Handbook]] how to mount the chassis. As the standard 2 RU chassis is based on Supermicro SC825, please refer to the official [[https://embedded.christmann.info/wp-content/uploads/2022/04/tRECS_Chassis_SC825.pdf|Chassis Handbook]] how to mount the chassis.
  
-===== Carrier replacement =====+===== Microserver installation =====
  
-When removing a Carrier always **work very carefully** and **do not bend** the baseboards **nor use greater force** to get them into place.+COM-HPC has one connector at every side of the microservers. When installing a microserver onto the t.RECS mainboard, the microserver needs to be placed on the mainboard evenly and gentle force above the two connectors has to be applied until the microserver is in its final position.
  
-===== Compute module installation =====+When changing a microserver, shut down the corresponding microserver and turn the power for the microserver off in the managemant GUI. 
 +The rest of the system can stay powered if needed - although we recommend to power off the whole system to prevent any damage on the running system. To release the microserver, gently pull it up on the both sides where the COM-HPC connectors are located. Don't apply diagonal force.
  
-When changing a module shut down all modules on the respective carrier and turn the power for the modules off in the managemant GUI. +===== Extension card installation =====
-The rest of the system can stay powered.\\+
  
-==== COM Express module ====+The t.RECS Mainboard has two PCI Express (PCIe) slots. The one located near to Module 1 in connected to the integrated PCIe switch and thus can be connected to one (or multiple) of the microservers. 
  
-Before installing a COM Express module check if the RAM is installed, and that the heatspreader is correctly mounted, and depending on the module if all thermal pads are in place. Also the orientation of the heatsink fins has to follow the airflow trough the case. The cooling fins have to point from the front to the back of the carrier.\\ +The second PCIe slot at the bottom of the t.RECS microserver is directly connected to Module 1.
-The screwholes where the module lays on the spacer bolts (8 mm in height) have to be free. Or smaller spacer bolts (5 mm high) have to be installed.\\ +
-  - When the module is ready to be plugged in place the two holes next to the COM Express connector over the corresponding spacer bolt. Then slide the outer CXP connector into the outer connector on the baseboard. Do this while tilting the module a bit, so that only the outer connector slides in +
-  - Then push the module down where the connector is by pressing on the heatsink. While holding the pressure push the module down with a luffing movement on the end where no CXP connector is. The module should now slide into the second CXP connector and be in place +
-  - check if the module is mounted correctly and is not loose +
- +
-<imgcaption module_installation|>{{ :documentation:module_installation.png?direct&750 |Correct installation of on CXP module}}</imgcaption> +
- +
-When starting the module for the first time after installation, it is necessary to set the time again, as the modules don't have an own battery and are provided with electricity for the clock by the battery on the RECS|Box backplane. +
- +
-==== Nvidia Jetson module ==== +
- +
-===== Extension card installation =====+
  
 ===== Fan replacement ===== ===== Fan replacement =====
  
-A fan that has damaged blades schould be **replaced immediately**, because the bearing will break very fast due to the imbalance and resulting vibrations.\\ +If a fan is broken, makes strange noise or doesn't rotate as wanted, it has to be **replaced immediately**. Please refer to the official  [[https://embedded.christmann.info/wp-content/uploads/2022/04/tRECS_Chassis_SC825.pdf|Chassis Handbook]] for fan replacement procedure.
-When changing a fan on a working system watch out that the system is not overheating during the changing process.\\+
  
 +When opening the lid of the chassis and working on the system, watch out that the system is not overheating during the changing process.