Thanks for the additional information.  If this server is still under warranty, I would contact support and get them replaced.  If they aren't under warranty, I would replace them  or use them till they fail.   You have done all the troubleshooting steps necessary.  Regards,
Hi, I have a PowerEdge R300server and the following warnings: PS 1 Status: Power Supply sensor for PS 1, predictive failure was asserted PS 2 Status: Power Supply sensor for PS 2, predictive failure was asserted  - I have updated OMSA to 5.5 (RedHat 4.7), DRAC5 firmware to 1.60 and BMC firmware to 2.50. - I have swapped both units, also checked the system with one PSU at a time - I measured voltage (with open chassis) - stable 3.3V, 12.2V and 15.1V during during booting, powering off or normal work - I checked if there is any damage inside one of the PSUs and there is none What else could I check to make sure that the PSUs are faulty (or not)?  Cheers,  Daniel Andrzejewski
E1618 Predictive Failure on both PSUs, how to troubleshoot