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.

[leofoe]

I once had this after installing an Asus P5AD2. It turned out to be the settings of the network adapter. Default it was set to wake up on LAN. So as soon there was network-activity the computer booted.

[adolescent]

leofoe wrote:
I once had this after installing an Asus P5AD2. It turned out to be the settings of the network adapter. Default it was set to wake up on LAN. So as soon there was network-activity the computer booted.

That't not how WOL works.  WOL only wakes up a computer when a special packet is recieved, not with any random network activity.  

I'd suggest that there might be a power on from keyboard/mouse option in the BIOS that is causing the problem.

[TheMagicM]

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

[Doobrey]

Stupid question, but have you checked that your board has the latest BIOS?
Might be a known issue that's been fixed.

Also, is your mouse a bog standard wired one, or a cordless?

[Tahoe]

Try removing the 5V PS/2 jumper... (if there is one) (keeps 5V power on your PS/2 ports for activating Power-On by KB/Mouse)

BTW; Here is the info on the board; including BIOS updates:
http://www.leadtek.com.tw/eng/support/download.asp?downlineid=40&downline=WinFast%20K7nCR18G(Pro)/GM

[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.