K8N Neo2 Forgets BIOS Settings??

I'm having a rather odd problem.  I built a new PC based around the K8N Neo2 motherboard/Athlon64 3500+.  Whenever the switch on the back of the power supply is shut off, and then turned back on, if I don't clear CMOS by moving jumper JBAT1 to the "clear data" setting then back to "keep data" setting, the system won't POST.  The diagnostic LEDs on the DBracket go Yellow, Red, Red, Yellow when this happens.
If I clear CMOS by moving the JBAT1 jumper, then the system will POST and it seems to work fine (although I have to reconfigure the BIOS).  Also, if the power supply itself hasn't been switched off or lost power, I can turn the PC on and off with the power switch on the front of my case and the system will successfully POST each time without having to move JBAT1.
But it's very annoying, because when the power flips off, I have to move JBAT1 to clear CMOS and reconfigure the BIOS to get the PC going again.
Anyone have any clue as to why the board would act this way??  It's frustrating.

Looks like a bios dmi pool corruption or extended PnP system data
in nvram.
Try this:
Remove the AC cord from the PSU .
Take the bios battery out .
Set jbat cmos jumper to discharge for two hours .
After that time period
mount the battery
Set cmos jumper to normal
Connect AC
Turn PSU on (fire up the pc)
Watch the post screen
You should now get cmos-error .. press F1 to continue .. del to enter bios.
PRESS DEL
Then do only "load optimized defaults" and save/exit with F10 .
Next boot should post that BUILD DMI POOL SUCCESS , UPDATE DMI SUCCESS .
(after this you can change your other bios settings)
If you still have the same problem after this there must be an error
with the motherboard itself.

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