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NT Server reboots

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3 replies

by souktana

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I have a compaq server running windows NT server 4.0 It has been running fine until the last 2 weeks(nothing has been changed or installed on it as far as I know), The problem is this server reboots almost every day around the same time between 7:30and 8:30 AM, the server is connected to a UPS with power shute software. The log shows power spikes sometimes but not all the time. I thought that the UPS is the problem and changed it with the same problem reaccuring I also swapped the wall connection with an other server and the spikes didn't happen to the other machine. What could be causing this, and why does the machine show service pack 6a as installed but when I try to reinstall it I get a message asking if I want to overwrite service pack 5 ??
I very much appreciate any suggestions.

Thank you

Ben

3 replies

by acattr

considering it happens from 7:30am to 8:30 am, sit in the room during that time to see what happens.

During the SP6 install, it is asking you to overwrite the backup of the previous service pack. You can safely overwrite it.

by tim.doyle

Sounds like it might be the Powerchute software. This software will shut down your system when it thinks the UPS is out of juice. Make sure its configured to use the COM port you have your UPS connected to, also make sure you're using the right UPS comm cable.

I bet if you stop the powerchute service your problem goes away.

by souktana

Thanks for the reply,
I know it is safe to overwrite the previous version of service pack but since 6a was already installed shouldn't it be asking me if I want to replace the old files (from previous 6a) with new ones?
Power shute is configured on com1 and I don't understand how sometimes it gets used to restart the server and others it get by passed and do a dirty reboot??

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