<div>
Check the voltage on the +5v rail.
</div>


<div>
RAM is powered by +5v.<br />
If that voltage is out of range it could trigger the health status warning.<br />
If the voltage is just a little out of range the RAM may still be working normally and so there will be no RAM errors recorded in logs.
</div>


RAM is powered by +5v.
If that voltage is out of range it could trigger the health status warning.
If the voltage is just a little out of range the RAM may still be working normally and so there will be no RAM errors recorded in logs.

<div>
Hopefully it was a one time false positive then.<br />
If it reoccurs I would inspect PSU and motherboard for bad capacitors and signs of anything overheating.
</div>


Hopefully it was a one time false positive then.
If it reoccurs I would inspect PSU and motherboard for bad capacitors and signs of anything overheating.

<div>
<div class="content wysiwyg-content">
I have a VI3 test lab set up with two identical Dell 2650 servers (4GB ram, Emulex HBAs, CX200 FC SAN). &nbsp;One displays a health status memory warning which apparently prevents the host being placed in a DRS/HA cluster. &nbsp;I cannot locate any memory related error in the logs. &nbsp;I have exchanged DIMMS between the two servers with no change. &nbsp;Please see attached VC pic<br />
Does anyone have a clue what might be causing this?<br />
<a href="https://filedb.experts-exchange.com/incoming/2009/04_w15/125022/memwarn.pdf" target="_blank" class="file-inline" title="VC ESX host memory warning (167 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>memwarn.pdf</a>
</div>
</div>


memwarn.pdf

I have a VI3 test lab set up with two identical Dell 2650 servers (4GB ram, Emulex HBAs, CX200 FC SAN).  One displays a health status memory warning which apparently prevents the host being placed in a DRS/HA cluster.  I cannot locate any memory related error in the logs.  I have exchanged DIMMS between the two servers with no change.  Please see attached VC pic
Does anyone have a clue what might be causing this?

ESX Host Health Status Memory Warning

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.

Components

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.