windows 2003ent server randomly shutdowm (ML570 G2 series)

[sureshs]

Hi Guys,

I have one windows 2003 server (hp proliant ml 570 g2 series).this server randomly every one week or 10 days going to unexpect shutdown.that time no display,no erros on the screen & and no disk actvity . Some time its showing blue screen with memory parity erros.Previous its 4 gb ram with windows 2003 std server.3 monthes back we upgrade the ram 16gb ram ,and we install the two dual channel port fc cards& two gigabit net work cards.we change the os windows 2003std to windows 2003 ent server.i called the hard ware guys.they done offline & online testing useing hp smart start 7.8 .they didnt find any hardware failure erros.finaly they they told that is the os fault.please can any one tell me. how to solve this problem.because this is my major clear case application server.
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[James ~ Happy Dude]

If its not the hardware; & the support guys have confirmed its the OS. check for stop error codes.
compare System event files... "system UPTIME" file.... compare the time when the server crashed, what programs were running... etc etc.

[Peter.A.Wilson]

I know this may be a bit obvious but make sure you have the latest drivers for the new additions.
Also did the Hardware guys do a comprehsive test on the RAM modules?
Does the server shutdown to off or does it restart(bounce)?

[Min Zhao]

We have the same OS and Server ML 570. Server shutdown sporadical. HP says it is OS failure. Any solutions or ideas for this case?