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Unable to authenticate System Field Programmable Gate Array (FPGA) or CPLD
Previously, my server R760xs suddenly powered off, after that show notif on IDRAC, Unable to authenticate System Field Programmable Gate Array (FPGA) or CPLD either because of unsuccessful cryptographic authentication or integrity issue. Can this problem be solved with a cold reboot or any suggestion? thanks
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Posted July 20th, 2026 15:32
Hello ArmanF, did you get resolution to this problem? I have a server that is giving the same error.
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Posted July 21st, 2026 03:00
@DELL-Young E sorry, my late response, i'll try thanks
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Posted July 21st, 2026 07:55
Hi,
please post your outcome here.
with kind regards Martin/ Liebe Grüße Martin
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DELL-Martin S
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Dell Technologies | Enterprise Support Services
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DELL-Young E
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Posted February 4th, 2026 23:25
Hello ArmanF, thanks for choosing Dell and welcome to our community!
ArmanF, I belive we need TSR logs for this: this error could be fixed with power drain, but TSR may have some answers what cause server reboot. 16G servers would most likely be in warranty, would you kindly raise a ticket instead when you have a moment? https://www.dell.com/support/home/en-us
Let us know if you have any further questions, we are happy to help.
Respectfully,
Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
#IWork4Dell
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