I'm getting intermittent stop message KERNEL_STACK_INPAGE_ERROR with parameter 0xC000009D, or STATUS_DEVICE_NOT_CONNECTED, on a Compaq Proliant 800 server running NT4 SP6.  This system has an imbedded Wide Ultra SCSI controller and one 9.1 gb drive and one 18.2 gb drive.  Sometimes the system won't boot (doesn't see controller, drives). Usually on the second reboot it'll come up and will run ok for some time.  Eventually performance degrades and there are many Disk errors in the system log.   I've run diagnostics on the hard drive and so far I've not found any errors.  Is it possible that this is an NT problem or is it a hardware problem?   What's the best approach to fixing this?  Thanks to all  who consider this.
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This error can have a lot of causes, so try the suggestions below:

Download memtest86+ and run the test for at least five passes if you don't get any errors on the first one.

Check the fans if they are running smoothly. Remove the CPU heatsink, clean the CPU surface and that of the heatsink, add an idea of thermal transfer paste and put the heatsink back in place. Replace the powersupply.

Remove all not necessary hardware and test. Then, if with minimum HW it works, add the removed devices one by one until the culprit is found.

Forgot to add, replace the page file with a new one.
Hey Warfel,
Well, from my reading it seems that there is a good possibility that this may be a hardware issue. Although my first thought was OS.
Here's a link with your exact error message; about half way down the page.;en-us;Q315266
Specifically it reads:
0xC000009D, or STATUS_DEVICE_NOT_CONNECTED: bad cabling, non-termination, or the controller is not able to obtain access to the hard disk.
I hope this helps! Have a great weekend. 8-)

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