PC motherboard issue

[TheMagicM]

I've got a weird problem... I installed a motherboard w/a Athlon XP 2000 cpu, works great, boots into windows just fine.  When I power it down it powers down but a few seconds later its as if its getting zapped by current and tries to power up and does eventually.  I found out that if I unplug the mouse from the ps/2 port it no longer does that.. I've dug through the bios and there are no power-on settings for ps/2 mouse activity.  Motherboard is a k7ncr18g-pro.

[TheMagicM]

I'll look through the BIOS settings again to see if there is a power on for keyboard/mouse..

[TheMagicM]

I'll look it up..as for the bios updates, it doesnt seem as any of those solves the issue I'm having.. regardless, I'll update the bios to the latest.

[TheMagicM]

ok, I looked up the BIOS updates, downloaded one and installed it...then recieved a Checksum error when rebooting.  I put the original BIOS back.   The mouse is a optical mouse and shows that it uses 5v power..I put the old ps/2 mouse back and it never powers back up on its own..  Well...I wouldnt say never..It did power back up overnight but it takes quite some time.  So I'm getting closer to solving this.