After updating my asus p5n-e sli bios from version 0608 to version 0901. i get a msg on post; 'unknown cpu detected,bios update is required to unleash its full power' apart from now having to hit F1 to continue im getting windows msg saying 'The system has recovered from a serious error' please help robbie
unknow cpu detected.bios update is required to unleash its full power
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I am a bit surprised that they still require you to copy the files to a floppy/USB and boot into DOS. Last time I updated my Phoenix BIOS the utility ran from Windows. But anyway, that seems to still be the procedure for ASUS boards.
You need to flash the bios to a newer version for this cpu to be supported by your motherboard. Your descriprtion says asus so go to www.asus.com; click on the support link; lookup your specific board model #; select the operating system you are running. Download the latest bios file and follow the directions on the download site for proper flashing. Once you have flashed the bios everything should identify properly and allow you to continue setup. Hope this helps.
The first thing I would try is to clear CMOS. Either set the jumper on the motherboard to do this, or even remove the battery, and wait half an hour or so. When installing a new CPU, and even RAM, you should always clear CMOS.
that would be ok. as long as youd remeber what you've save on the floppy and what specific BIOS update your going to install. but always be cautious, double and triple check if your doing and installing the correct thing...
Your flash utility should have stored a backup of the previous bios image. Fire it up and see if there is a restore function.
If there is not (but I am fairly confident there is) you can order a new bios chip from the manufacturer for $15 or less...with whatever version you would like on it. I find it odd that it would not recognize your processor type.
Typically I would not flash a bios unless there is a problem in the first place.
I could not find BIOS ver. 1302 for the M2N-E Mb. What I do know: Your dual core 4200 showing up as "unknown". Asus says: This is because the BIOS does not have the relative CPU uCode to support this processor. Please simply update your BIOS to version 0902 or later to resolve this problem. BIOS 0902 can be downloaded from the link below: http://dlsvr01.asus.com/pub/ASUS/mb/socketAM2/M2N-E%20SLI/0902.zip Once you cpu shows up correctly, chances are that your over clocking will work and the bios will stop sending you back to change your settings.