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Hp Z400 heatsink problem

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I own Hp Z400 Intel xeon w3550, from the very first day i am getting error 517 a low powered heatsink detected on high power cpu. Kindly help me to solve out that issue.
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Hi  @Junaid2,


This POST error message indicates:


Screen message                                                                        Probable cause                                 Recommended action
517—Low power CPU heatsink(s) detected for high power CPUs
Inadequate heatsink is installed.
Replace the low power heatsink with a high power heatsink.



For more information on this product and for Technical Specifications regarding CPU Heatsink Fan, please refer to below link.



I hope that answers your question. 🙂


I am an HP employee, the opinions expressed here are my personal opinions, not of HP.


Make it easier for other people to find solutions, by marking my answer “Accept as Solution” if it solves your problem.


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You are getting this because you are running a 130W processor under a Mainstream heatsink/fan rated for 95W max TDP.  Or, your wiring of the correct heatsink/fan (the Performance larger one) is not working correctly and the motherboard is seeing no ground contact at pin 5.  The Performance fan has a ground jumper wire from pin 1 to pin 5.  Rarely those can have bad contact, or break.


Please see this response to your double posting:  here

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You can connect pin 1 to pin 5 by wire.  For my HP Z800 and Xeon W5580 work but if you sterss your CPU temperatures is higher than 70*C. 

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