Customer-Replaceable Units

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The following table lists the customer-replaceable units (CRUs) in the server and directs you to the replacement instructions.

CRU	Description	Replacement Instructions
Battery	Lithium coin-cell battery that powers the CMOS BIOS and real-time clock.	Servicing the Battery (CRU)
DIMMs	Add or replace memory modules in the system.	Servicing the DIMMs (CRU)
Storage drives	Supports SAS hard-disk drives (HHDs), SATA solid-state drives (SSDs), and NVMe SSDs.	Servicing Storage Drives (CRU)
Internal USB flash drives	Supports two internal USB flash drives. The bottom USB port is used by the Oracle System Assistant USB flash drive. Note - If the USB flash drive that contains Oracle System Assistant experiences a hardware failure, it can only be replaced by authorized Oracle Services personnel only. Contact Oracle Services.	Servicing the Internal USB Flash Drives (CRU)
Fan modules	Four fan modules for cooling the motherboard assembly and installed components.	Servicing Fan Modules (CRU)
PCIe cards	Optional add-on PCIe cards that can expand the functionality of the server. Note - The Oracle Storage 12 Gb/s SAS PCIe RAID HBA card and the optional Oracle PCIe NVMe switch card are field replaceable units (FRUs) and should only be serviced by authorized Oracle Service personnel.	Servicing PCIe Cards (CRU)
PCIe risers	Houses and connects the PCIe cards.	Servicing PCIe Risers (CRU)
Power supplies	Two fully redundant AC power supplies.	Servicing Power Supplies (CRU)

Oracle^® Server X5-2 Service Manual