NEC Express5800 Series User Manual

8-28 System Upgrade
13. Confirm that the heat sink is mounted horizontally to the motherboard.
IMPORTANT:
 If the heat sink is not horizontally to the motherboard, dismount and remount it.
The heat sink cannot be mounted correctly if:
- the CPU is not mounted correctly
- the screws are not fully fastened.
 Do not hold the fastened heat sink to move the CPU.
14. Insert the cable and then install the cooling fan unit.
15. Install the CPU/IO module referring to page 8-19.
16. Connect the power cords.
17. Press the POWER switch to power on the server.
18. Verify that POST displays no error message.
If POST displays an error message, write it down and see the POST error message list on page
7-4.

NEC Express5800 Series Specifications

General

Series	Express5800
Category	Server
Processor	Intel Xeon processors
Network	Gigabit Ethernet, 10 Gigabit Ethernet (Varies by model)
Operating System Support	Windows Server, Linux variants
Form Factor	Tower, Rackmount (1U, 2U, etc. - varies by model)
Memory	DDR4 ECC DIMM (Capacity varies by model)
Storage	SAS/SATA HDD/SSD, NVMe SSD (Configuration varies by model)