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I installed Windows Server 2008 on a VMWare Host. After I have successfully booted up the server the machine suddenly, after it has been idle for about 5 minutes, shuts down. Does anyone know if there is a specific setting I need to tweeck to prevent this shutdown when the server is idle.?

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Windows Server 2008 will never shut down on it's own for being idle. Something else must have happened; live a software update; or a crash. – vcsjones Jul 11 '11 at 19:15
Check your event logs, it should be apparent if an application crash or something else is causing the shutdown. – Dave Jul 11 '11 at 19:26
Check your logs on both the server, and on VMWare. Update with anything that you find. – Nixphoe Jul 11 '11 at 19:58
shuts down or suspends? – tony roth Jul 11 '11 at 20:53
check the power settings within the control panel you might have an incorrect setting there. – tony roth Jul 11 '11 at 20:54
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@Jones, the machine just shut down, no software update and no application crashed

@Dave, I checked the event logs and I can find the event that sent the signal to shut down. But it does not specify who/what sent the signal

@Nixphoe, As I mentioned above there is no specific error logged in the event log. I even had IT at work take a look at the event logs and they could not see anything abnormal. I checked the event logs from the VMWare and I checked there is warning thrown when I start up the Windows Server VM. The event log mentions that there is insufficient video ram available. It mentions there is a max resolution and I will need to change a value: svga.vramSize=newValue to increase the size. However, I have to mention that the Windows Server does not fail to boot up and does not shut down right after the warning has been logged.

@Tony, I could not find any invalid power settings

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check the esxi/esx hosts settings and or logs anything there? – tony roth Jul 14 '11 at 13:53
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