ProLiant Servers (ML,DL,SL)

Re: HP DL380 Gen 9 + P840 Cache disabled

Occasional Visitor

HP DL380 Gen 9 + P840 Cache disabled


I have bought a couple of HP Proliant DL380 Gen9 with P840 Smart Array Controler (SKU 752688-B21). Both are working fine but have a problem with the cache module.



In ILO System information, Status for storage is "Degraded"

Cache Module Status is Failed

HP SSA reports shows : the cache is permanently disabled.


Active Health log shows :

Drive Array Cache Module Battery Failure (Chassis 2, Bus Unknown, Slot 2)


However battery is fine. It was included in the server


The controller is fine also, it has been already replaced on one of the machines.


It looks like my P840 cannot find the battery. On Dl380 Gen9 the battery is connected to the motherboard, not to the controler


Occasional Contributor

Re: HP DL380 Gen 9 + P840 Cache disabled

Same issue on ML350 Gen9 + P440. 


Battery is present, cable from the mainboard to the battery is seated properly.  And the cable from the Smart Array Controller to the mainboard is seated properly.


The issue also Flashes Amber status lights on the controller.


This server had an unattached hex bolt rolling around in the power supply assembly bays when we recieved it~  Nice..

Jan Soska
Honored Contributor

Re: HP DL380 Gen 9 + P840 Cache disabled

As it is new server in both cases, please raise a support ticket to HP please.

Occasional Visitor

Re: HP DL380 Gen 9 + P840 Cache disabled

In my case, it turned out that the cable between the P840 FBWC module and the PCI Riser was missing on both servers.

HP Customer service provided me with the missing part (792836-001)