PPC750GX vs. PPC750GL?

[Powerbase]

I saw a picture of another version of the ZIF board:

View attachment 91099

From here:

stat.ameba.jp/user_images/20231223/17/ymf724v-f/6a/96/j/o0834062615380474042.jpg

Ive never seen that style, clearly marked as a 750fx too with dip switches. Maybe a weird Japanese brand one.

 

[LightBulbFun]

Ditto! never seen one with Dip-switches before thats fascinating but googling the markings on the PCB does bring up another here

Unknown PowerPC Processor \ VOGONS

www.vogons.org

 

[croissantking]

I'm afraid I have missed the thread, but I have already made a replica of the PowerLogix 750GL accelerator...
It however does not work as I did blow the VRM, so there's possibly a short somewhere in my design that I need to trace.
I had a PowerLogix board that I recovered from a scrap lot, that was destroyed. It's an 8 layer PCB, and it was extremely challenging to both reverse engineer and assemble.

View attachment 38954View attachment 38955

Did you ever get this working?

 

[Siliconinsider]

Not yet, but I have not touched it in a while...

 

[croissantking]

Not yet, but I have not touched it in a while...

It would be a pity to let it get forgotten after doing all that hard work to reverse engineer it.