My main system is a P4C800-E DLX, a second one is P4C800 plain.

I must say that the P4C800-E DLX is more stable than the P4C800 plain.

Since yours has the Delux there, probably it is better than the plain one.

However, except for some weird things like failing to detect some LAN card
in Linux, using the P4C800 plain is still good with Windows 2000 and XP.

If you have problems, please look at the video card, RAM or Power supply
(PSU).
The PSU may give you problems that you never think of and you may think
other
components are the culprit.

Testing with a new and good PSU to see what happens. Or do a fresh install
of XP.
That will tell you a lot about what may happen.

Having an unstable system is not a reason to pour all your blame on Asus.

Good luck



---------
"Robert Megee" wrote in message
...
My system has a P4C800 deluxe mb. I'm running XP-pro with an 120gig
hd and a GeForce 5700 128 agp card. I started out with 2 512mb sticks
of DDR-400 (pc3200) Kingston memory. Shortly after I got this system
up and running, I started having problems. Lock-ups, various crashes
and such. Finally it crashed hard.
Well, I started over. This time I couldn't finish the XP install.
Each time at the end of formatting the drive, it would tell me that
the drive was corrupt.
Good enough, I tried a different hd. Same problem. And I was able to
format and install the original hd on a different system. Conclusion,
it wasn't the harddrive.
A search of the internet hinted at a possible memory problem.
Specifically the dual-channel mode. Well, I pulled one of the sticks
and every thing worked properly. I've since tested this with a more
powerful power supply, and I even sent the memory back to Kingston
to have it tested. (oh, was able to test it myself with memtest and
it ran for 48hours with no errors) I even tried a different video
card. (that is the only add-in card in the system.)
The only thing that hasn't been changed is the motherboard.
I contacted Asus and they gave me a couple of bios settings to try
which didn't help.
I asked Asus to send me a new motherboard (I offered to provide a
credit card for them to charge against till I could get the old one
back)
Since then inspite of 4 follow-up email, I've heard nothing. This has
been several weeks.
I've been reading the advice here and have gotten a couple of new
ideas. (disable legacy usb; install one stick, get it's settings, add
the second stick and set them manually)
But I would still like to know how to get some response from Asus.
Anyone know how?

thanks,
Robert Megee