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Getting Windows to detect a CPU change

Let me first start out by saying I am open to reinstalling windows to get everything working correctly, but I first wanted to see if there was anyway to resolve the follwoing problem without the reinstall.

The problem is this: I had a CPU that went toast was RMAed and the CPU sent back from the RMA was toast as well, so I bought a new CPU that I know works with all the rest of my hardware. With the new CPU installed odd slowness was experienced and more CPU activity than normall was seen. Games that I knew would run on this system just fine slowed down to an almost unbareable halt. So I went hunting and discovered this:

Windows has no idea what sort of CPU I am using and therefor is running it at quarter speed (it is an AMD Phenom II Quad core 3.3 GHz processor). My question then is this: Is there some way to make windows recognize the CPU? I am trying to track down a BIOS update but the stupid 16-bit flashing tool that does not work with 64-bit windows won't let me upgrade and there is no inside the BIOS flashing ablity.

Thanks for the help!

P.S. The motherboard is Jetway's HA04 790FX AM2+. The system has to be restared on each power up due to what I belive is the motherboad initializing the wrong memory controller on power up the first time (I got this idea off of the POST code thrown when the system hangs on first start up)
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More about getting windows detect change
  1. The motherboard that you have must have a web site where you can go to look for bios updates and to see if the cpu that you bought is on the QVL of cpu's for that motherboard. At the same time it may tell you that it is if you update the bios to the latest release. It isn't Windows recognizing the cpu so much as it is the motherboard's bios recognizing it , that would be the first step.
    This is the latest bios , I don't know if it will help.
    Here is another link to the Jetway site.

    Of course a better quality motherboard would help. Most boards I know of have a bios update inside of the bios.
  2. When you change a processor you should always reset the CMOS memory otherwise unpredictable results will occur. Always reset the CMOS memory correctly as described in the motherboard manual using the clear CMOS link with the power cord DISCONNECTED.
  3. Best answer
    In looking at the CPU compatibility list on Jetway's site -- they only list support for up to Stepping C2 so the newer PII x4s are not supported (the best that is supported is the PII X4 955 C2 stepping model HDZ955FBK4DGI ) for use in it (they may run but would require manual setup to achieve the proper settings) and the only 3.3Ghz PII X4 that I can think of is the 850 which is not listed as being supported so you may want to either return it and get a older 955 or get a new MOBO and New RAM also to get it to run properly (since the DDR2 RAM is also holding you back some as well)

    inzone said:
    This is the latest bios , I don't know if it will help.

    Doubtful since it was released in April 2008 and the 850 (IF that is the CPU he is using) is more recent than that so it will not add support for that CPU anyway !
  4. Agree ^^^ with JDFan.
  5. Best answer selected by Erru.
  6. Alright thanks all. I had no idea that the steping had changed and that Jetway would be so-so with their support, but its what I get for my first build (2008 I have built 6 systems since) before I stated following everything here on tom's.
  7. Sometimes it is like that. But mostly there are no problems. IMHO.
  8. This topic has been closed by Nikorr.
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