Processor upgrade troulbes

i have an a8m2n-la motherboard. i just took out the athlon 64 and put in an athlon 64 x2 4050e. Hp says it is supported, however once i boot my machinei cannot see anything on my monitor and my ps/2 or usb mouse/keyboard aren't working. this is frustrating because my computer was working fine an hour ago. i am at a loss for how o fix this situation.
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More about processor upgrade troulbes
  1. Put your old processor back in (if you haven't already). Make sure you have the version of BIOS (or a later version) required for your new CPU's support. You should be fine with the lastest BIOS update. Load the updated BIOS, try again.
    my best guess here
  2. alright i have installed the latest bios update, i reinserted the athlon 64 x2 and it will start then give me one short beep then a long one...i updated my bios directly from hp.com to the latest version, and my mobo works perfectly with the athlon 64 single core in it.
  3. I have just become aware that there are two very different motherboards known as the A8M2N-LA put out by HP (made by Asus). One is the Nodus - there are many variations of the Nodus but they should all support your new CPU
    http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00714578
    the other is the Naos which does not support your new CPU
    http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00757470&dlc=en&lc=en&cc=us
    Is it possible you are on a Naos version - If you have only two SATA ports, likely it's a Naos
  4. nope i have a nodus, i double checked. it is possible that i must upgrade my bios further but i cant find a version on hp.com that is later than 3.10, which is what i have.
  5. I'm going to let you check out this thread, a little too much reading for me - and it's all over the place as far as what works according to the posters
    http://www.cpu-upgrade.com/mb-ASUS/A8M2N-LA.html
    Hp is very strange on this one.
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