PSOD in VMWARE - Urgent

Hi

one of our hosts is getting the attached PSOD at random, can last a day, can last a few days

host is dell r720, 225gb ram, no local storage,
esxi 5.5 running off an SD card
NAS is attached via iscsi over 10gb

i did follow this guide, but still same issue
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2032823
wsc-itAsked:
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wsc-itAuthor Commented:
fixed by setting persistant storage to the SAN in vmware
thanks
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Is this a new installation?

Are you using the OEM Dell version of ESXi 5.5?

Check heatsinks?

Check memory is seated correctly? and correct memory rules are applied. e.g. 4 memory modules per bank. 225GB ? is this correct? seems an odd number?

Run memory tests and processors tests? (memtest86+ - http://www.memtest.org/)

Make sure your R720 is running the latest firmwares, download Dell DVD and update.

Check the SD card is a good quality card, e.g. re-install.

We've seen faulty processors on these units. So check with VMware and Dell support.

Upload PSOD screen here.
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wsc-itAuthor Commented:
Hi, It was an upgrade from 4.1
Server has not missed a beat on 4.1 for the last 6 months until now, was getting a faulty dimm error on b3, Dell repalced it and ran the mem tests and all seemed OK

all the ram is configured correctly and server is up to date, DELL updated everything.

its the DELL ESX image.

The SD card come from DELL, Dual SD config
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wsc-itAuthor Commented:
PSOD
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would try a new install of ESXi 5.5 not an upgrade.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
what SAN are you using?
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wsc-itAuthor Commented:
I found my own resolution
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