PnP bios extension

[tom2k7]

in my device manager i have a yellow exclamation mark on Pnp Bios Extension, then i look at the properties of it and it says
"Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)

Click Troubleshoot to start the troubleshooter for this device."

i have just re formatted c: drive and re installed windows installed all system drivers and i have gotton this problem. i also try and let windows search for a new driver for it but it does not find one. could someone help me out please. thanks

[BipolarBill]

Just reinstall the chipset drivers (Intel, VIA). You can also stop letting Windows search for the drivers and force the driver update. Try using "Don't search..." and "Select from a list...".

[Peter M]

That happens when you switch from legacy to ACPI PnP model in BIOS without reinstalling the operating system afterwards.

Either switch back to ACPI-off, or reinstall the operating system.

[tom2k7]

peter could you explain abit more with what you mean. and bill i tried just installing mobo drivers but that didnt fix the problem. thanks

[BipolarBill]

Peter means that you should enter BIOS setup and disable ACPI. Do I have to tell you how to do that?

[tom2k7]

when i disable acpi in the bios the computer will not boot

[Peter M]

No I said you have that PnP entry because you HAD ACPI disabled once.

[BipolarBill]

If the PC is working, just let it be. I have disabled devices in my Device Manager too. You'll get used to it.

[$1500-P4 gamer]

Originally posted by tom2k7
when i disable acpi in the bios the computer will not boot

Asus P4T-E (p4)
Asus A7N8X deluxe (Athlon XP)

My last and newest one both wont boot with it disabled. Not sure why either. But wont even boot from bootable cdrom this way! No OS loaded-useing boot floppy too. Never finds my cdrom drives and hangs when looking for msdos mode drivers. LOL so I left it on. Though it causes Win ME to hang on restart functions. 98/XP are fine with it. Oh well. hehe;)