Jump to content
Welcome to InsanelyMac Forum

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Sign in to follow this  

Need help with MDD Powermac Upgrade

3 posts in this topic

Recommended Posts



I acquired a dual 867MHz PowerMac G4. I wanted to upgrade the CPU to a dual 1.25 or dual 1Ghz. Would I have to worry about the system bus or FSB being incompatible with the new CPU?

Share this post

Link to post
Share on other sites

You need to buy a CPU with the correct bus speed. 166MHz is more common, but check your system profiler before you buy.

Share this post

Link to post
Share on other sites

Well, I believe you can install one of the better dual processors like the 1.42ghz one, but it wont run at 1.42ghz because your board runs at 133mhz rather than 166mhz. You could get a sonnet 1.6 or 1.8 ghz; upgrades starting at close to 300 on the interweb. I believe they will run at full speed regardless of what speed your board is.


Oh also you may be able to overclock your 133mhz board to 166mhz, but it involves some soldering under the board.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Recent Status Updates

    • Bios-PC  »  MaLd0n

      Hi MaLd0n
      you helped me with dsdt and everything working fine .
      I fix the audio issue.
      I need to add wifi bcm4360 original apple to dsdt to be  en0 all the time 
      also to add it to pci list.
      and I change from gtx970 to AMD radeon pro rx580 and I have issue with vtencoderxpcservice that make my cpu 300% and high temperature . with Nvidia it doesn't happen.
      I search the internet days and night and try to fix this issue no luck.
      best regards
      · 0 replies
    • DynaFEX  »  MaLd0n

      Hi MaLd0n!!
      I just don't know what the hell to do with this issue and I was wondering if you might please have any ideas??
      Sorry to bother you and thanks for all your help!
      · 0 replies
    • mrjayviper  »  e97

      hello. Can you please share instructions and files to get OSX working on a dual 2011 setup? you included a link to sixflow but it's not loading anymore. Thanks
      · 0 replies
    • adamfox

      I added a video to a @YouTube playlist https://t.co/EXJucl9T8B Go the distance sung by Adam Fox karaoke cover Disney Hurculese
      · 0 replies
    • Mr. Xtreme

      Hey, I'm not dead, I've moved over to using the nickname "Mr. Xtreme", and mostly use Linux distros/Windows 10, though it seems I'm gonna have to hackintosh again, so, hey everyone who remembers me! :wave:
      · 0 replies