Windows Server 2003 Rebooting every hour
Since a few days one of my Windows 2003 servers also reboots every hour. I tried to deinstall everything that was not important, stop unnecessary services, but it still reboots every hour. In fact in 60 minutes and about 30 seconds:
Boot Time Difference
13:55:31
12:55:19 1:00:12
11:54:50 1:00:29
10:54:13 1:00:37
9:53:42 1:00:31
8:53:09 1:00:33
7:52:35 1:00:34
The eventlog shows The previous system shutdown at 7:52:35 AM on 1/21/2009 was unexpected.
I checked the BIOS but did not see anything strange. The power management had the setting that after one hour the hard disk could be switched off, but after setting that to Never, it also rebooted.
The only things running on this server (now) are:
" IIS (With ASP.NET)
" SQL Server
It is hard to do a virus scan as it does not complete in one hour, but so far I have scanned it in parts (program files, windows/system32), and still continuing to select more parts, but I assume if there were an active worm it would have been detected as part of the memory scan.
The solution mentioned here (manual reboot) does not work for me.
Boot Time Difference
13:55:31
12:55:19 1:00:12
11:54:50 1:00:29
10:54:13 1:00:37
9:53:42 1:00:31
8:53:09 1:00:33
7:52:35 1:00:34
The eventlog shows The previous system shutdown at 7:52:35 AM on 1/21/2009 was unexpected.
I checked the BIOS but did not see anything strange. The power management had the setting that after one hour the hard disk could be switched off, but after setting that to Never, it also rebooted.
The only things running on this server (now) are:
" IIS (With ASP.NET)
" SQL Server
It is hard to do a virus scan as it does not complete in one hour, but so far I have scanned it in parts (program files, windows/system32), and still continuing to select more parts, but I assume if there were an active worm it would have been detected as part of the memory scan.
The solution mentioned here (manual reboot) does not work for me.
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hrybko1, thanks for your suggestion. I have tried this, but it did not make a difference. I tried both a restart and a shutdown.
I also changed the system clock, 20 minutes ahead, but it still reboots an hour after the last time, so it looks like something external.
So I moved the server off the UPS and placed it on the regurlar power. I have a problem accessing the UPS, so I don't know the state, I need to change that next.
I also changed the system clock, 20 minutes ahead, but it still reboots an hour after the last time, so it looks like something external.
So I moved the server off the UPS and placed it on the regurlar power. I have a problem accessing the UPS, so I don't know the state, I need to change that next.
ASKER
It still reboots every hour, even without UPS.
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LingerLonger, I have cleared the checkbox, end there is nothing in the event viewer before the reboots. It looks like when you take the power off, the system reboots without having a chance to react to it. A reformat is probably too difficult, but my last resort. But I am thinking about upgrading the OS to Windows 2008, this may repair some errors.
Kraszi, I don't have a spare powersupply but could order one, but is there a way to find out if it is faulty?
Kraszi, I don't have a spare powersupply but could order one, but is there a way to find out if it is faulty?
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Kraszi: I will look at the UPS (having a problem with it due to network changes), but other PCs connected to the same UPS are not having a problem. Still I won't exclude this.
LingerLoner: I changed the setting as you say, but it rebooted anyway.
There is no message about the upcoming rebooting, just the message afterwards stating that it was unexpected.
You would expect a hardware problem, but how does the hardware know the time?