I have a Quadra 700 and I am kicking myself in the butt that I didn’t buy vram when the reproduction sticks were available. I now want to max it out and can’t find any affordable sticks, so I’m going to attempt to make my own.
This is a bit out of my wheelhouse so I figured I would make this thread in case someone else would like to join in.
I just secured 24 TC528128BJ-80 chips, which are 128k x 8 and should do the job, I noticed there is already an open source project for 512k sticks which were made in EasyEDA:
github.com
My plan is to use this as a base line to get the board shape and pin layout and just convert it over to use these chips.
This is a bit out of my wheelhouse so I figured I would make this thread in case someone else would like to join in.
I just secured 24 TC528128BJ-80 chips, which are 128k x 8 and should do the job, I noticed there is already an open source project for 512k sticks which were made in EasyEDA:
GitHub - Stephen-Arsenault/68Pin-VRAM: An open source PCB for 512kb 68-pin VRAM (PN 820-0605-A)
An open source PCB for 512kb 68-pin VRAM (PN 820-0605-A) - Stephen-Arsenault/68Pin-VRAM
github.com