I may have posted this in the wrong spot before, sorry folks.

My WHS is turning itself off and rebooting as many as 3 or 4 times per day.
I am using an Intel motherboard and i5 processor.
When building this box, I called and spoke to Intel and they recommended the board and processor combo.
According to the critical Error log this problem has been going on since the approx. time when we commissioned the new server.
I did find out the the drivers for the onboard NIC and video card are not supported by WHS 2011 and Intel also confirms that.
I am disappointed that their tech support would point me in this direction knowing that the drivers are not supported.
I do not know if this is the core of the problem.
Each of the devices in the device manager show that they are all working properly.
The power supply is a 750w workhorse.
I have 2 SSDs and 2 - 1 TB drives in the box
No other add on cards on the Mother board and we have 8 gig of RAM
This is a file server only.
There are no applications loaded on the box.

The specific error code that the log shows is:

Critical Kernel-Power 41 (63)
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding , crashed, or lost power unexpectedly.


This has happened 3 x in the last three hours.

Any ideas?

I'd say it's drivers or hardware. You can run memtest if you want to stress test the memory, run Prime95 or similar to stress the CPU. Try a different power supply, or add on a NIC and disable the on-board NIC. You can try to debug a memory dump. Those are the steps I would take.

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Alex Kuretz
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Thanks Alex.
I will look at those things.
The other problem is that I had a hard time finding a NIC and a video card that says that they have the proper drivers too.
It appears that WHS 2011 was built on Windows Server 2008 so that is what I am tiring to locate drivers for now.

I am using WHS 2011 with Intel DH67BL/Core i3-2100T combo. The thing is rock solid.
Installing the drivers will work, but with the NIC driver you have to extract the drivers, then install it manually through Device Manager by pointing it at the correct .INF.

There is a guide on missingremote.com covering most of this:
http://www.missingremote.com/guide/inst ... therboards

In your case, I would suspect bad RAM (but it could be anything, power supply, CPU, MB, you name it)...
Best to stress test the RAM (memtest86) and make sure you have a stable build...