Kpt. Lehmann, usually a bad processor or mobo results in a hard lock that won't even respond to the "reset" button. Constant reboots can be anywhere from a powersupply issue, to a software issue.

Try this as it may help. There have been issues caused by XP's DEP program. I have completely disabled it, and no more goofy problems with a lot games.

Scroll down to the DEP change in the second post. If you've already done this, disreguard. Hope it helps!

http://shockwaveproductions.com/foru...&highlight=dep

Thanks mate. That site requires registration though... and I'm off to the PC store within the hour to have all my hardware tested... It'll be some days before I am back up again. If it isn't hardware as the cause, at least I'll have peace of mind there and know what to do.

The reboots are becoming much more frequent.

Have you also checked for virus and other malwares?

If you only did it with one anti-virus software, you should also do it with other ones.

Or maybe it was sabotage ...did you turn on this in SH3Commander? ;)

Yep, tried that too.

Salute! guys.

See you soon I hope.

There's still work to be done.

I think 3 possibilities:

1. CPU (or fan), 2. GPU (or fan), 3. maybe power supply

Maybe a driver issue too but in this case I don´t think that this is one.

Last week I have had the same probs on my old second PC (which is the one in my network connected to the internet)...after 10-15 mins turned on suddenly a bit strange noise appeared and sudden reboots happened...has had sound like a bit of a fan failure (I figured it out in the end that is was in fact one)....

Removed all hardware starting with RAM...tested whether one bank of the three was gone. But still sudden reboots even when I don´t have made anything on the PC....Then continued with with the case fans but this all were ok, even the cpu fan was ok and the cpu heat (checked) was ok too. Then as the PC has had run for 10 mins again...the noise came again....and I figured it out that this has had come from the graphic card....watched the GPU fan and it has turned slow and made the noise....I think the motor of the fan has been gone....turned the pc off inserted another GC (same model) and woala PC works again....now it´s turned on for nearly 6 days without turning off, without noise and without sudden reboots.

But when the problem has occured right after inserting a new DVD Burner, then I don´t think it´s the GPU. I think Power Supply is the first adress....Don´t know whether the DVD Burner needs to much power or not (more than the drive which was installed before)

Kpt,

Go to Micro$oft's website, and do a search for DEP. There are instructions there to turn it off. There have been issues with some games, and other applications that cause all kinds of weird anomolies that drive folks nuts. And by turning it off, the issues go away. It even helps to smooth out some games that were jumpy, and unstable before.

Sorry, I forgot about the registration requirement at Shockwave, they did it to cut down on those $@%$&*!$#$%^&* spammers.

If you're still plagued with the constant reboot problem, your symptoms almost mirror mine when my old, and tired P3 gave up the ghost. The mobo, and processor, and hd all pretty much gave out together. Heck it was 8 years old, and bound to happen, since I like to push my rigs to the limit where I can.

Kpt. Lehmann,

I have just recalled that I had a similar problem some years ago when I installed my first CD burner. The computer rebooted every now and then, and specifically it rebooted when playing a GPU intensive game. Finally, I discovered that it was due to the power supply unit (PSU): it was not powerfull enough to feed my computer with the new additions. I bought a new PSU (able to provide more watts), and the problem was fully solved !!!


Txema