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ESX Host Health Status Memory Warning

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?
memwarn.pdf
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virtualdude
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virtualdude
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1 Solution
 
PCBONEZCommented:
Check the voltage on the +5v rail.
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Paul SolovyovskySenior IT AdvisorCommented:
Upgrade BIOS
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PCBONEZCommented:
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.
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virtualdudeAuthor Commented:
running standalone diagnostics seems to have cleared this warning...
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PCBONEZCommented:
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.
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