We came to the conclusion that it was hardware related because Windows didn't know what was going on until the machine had restarted: In the system event log we could see that the event log service wasn't shutting down, which suggested the operating system wasn't initiating the shutdown. We also changed the System Properties to tell it not to automatically restart Windows, which would mean any error (or bsod) would stay up on the screen until the machine was manually restarted. However, the machines still rebooted.
I'd be surprised if you've managed to over-load the psu, whilst you've put a couple of additional items on it neither of them would be particularly power hungry.
I'm just getting a freeze - the system just hangs and won't do anything until I recycle the power- not a reboot, but again there's nothing in the event log...
Try unplugging the DVD drive (both cables) and see what happens. Whilst the problems I've directly been experiencing have been reboots, colleagues who work in the libraries here have been having that exact problem of it freezing.
So far for my machnes the firmware update for the DVD drive appears to have resolved it, but its still early days and we've still got a fairly high-level call open with Dell about the actualy firmware update exectuable being rather buggy.
OK - I've tried unplugging the drive and un-enabling it in the BIOS - and this produces regular freezes.........
In the system error log I've found an error 9:
The device, \Device\Ide\iaStor0, did not respond within the timeout period, and googling gave me:
then on http://www.atomice.com/blog/:
Intel(R) 82801GR/GH SATA AHCI Controller
I upgraded my new PC from Windows XP to Windows Vista. After doing so I noticed the PC would intermittently hang. The hard disk light would stay lit for a while then go out, then the computer would resume. In the System Event Log I found this message:
The device, \Device\Ide\iaStor0, did not respond within the timeout period.
Searching on Google I found this article on Intel’s website:
The article suggests upgrading to the latest version of the Intel Matrix Storage Manager drivers should solve the problem. It didn’t. However I noticed this paragraph in the article:
Because the setup change means that LPM is enabled by default for all Windows Vista platforms, using a device that does not completely follow the specification may result in one of the listed issues.
I found the registry settings for the iaStor and iaStorV drivers at:
Then for each port (
Port1, etc.) I changed the
LPMDSTATE values from 1 to 0. This solved the problem.
I'm off to try this....
OK, I've plugged the CD/DVD in again, and re-enabled it in the BIOS. I've installed the newest active matrix drivers from the Dell site, as well as the Active Matrix manager, and I've edited the keys at HKLM\system\controlsetx\iastor\paremeters from LPMDSTATE=1 to 0, where x =1 to 3. All the other keys were at 0 already.
So far OK - earlier today the machine was crashing every 90 minutes.
I'm not sure if this is what fixed it, or whether at the same time I changed the Netgear W311B wireless card for a direct connection.....
I would anticipate it being the Intel stuff, purely because it is known to cause these problems according to google. Just for info, we are currently upgraded the DVD firmware to A103 on the machines which are rebooting. The second batch of machines which were freezing (using a different image for student pc's) aren't getting this update and are just getting the SATA mode change in the BIOS to 'Legacy IDE'.
After a month or so we're now happy that all our machines are back to being stable, but I'll definately be keeping an eye out for them in relation to the Intel drivers.
Late fall we purchased 15- 760's and almost all have exhibited this "freezing" usually after an extended idle period of over an hour, and particularly overnight. We image the computers as soon as we receive them and run XP Pro SP3 on most of these machines. Some are at SP2 because of some of the software we run. Bios was upgraded from 3 to 5 as soon as we received them, then up to 6 when it came out. We're a small staff and don't have time for extensive troubleshooting so we started switching out the mice- replacing the brand new Dell laser mouse with older (used) standard Dell optical mice. The problem has abated on every one that we've replaced the mouse on. I'm going to contact Dell to see if there's a special mouse driver?