Reading the CC FAQ (on the Mystic upgrade), it says to install two 512k VRAM SIMMs. The FAQ suggested having two 512K 70ns VRAM SIMMS, and two 512K 80ns VRAM SIMM around. And one may need to experiment to see what would work.
I want to search ebay and buy some, but I don't think I have enough information.
My 575 logic board came with two VRAM SIMMS. But I do not know how to tell if they are 70ns or 80ns. And I do not know how to tell if they are 512K or not.
Both my VRAM SIMMS are the same.
Each VRAM SIMM has 4 chips on one side. A paper sticker on the back says "630-0045 G9417". Both VRAM SIMMS are Apple branded and dated 1991. Printed on the SIMM is:041 820-0605-A. I see a A50 printed on the other end. I believe that they are 68 pin SIMMs. C5 is printed on the other side.
Can someone tell me if they are 512K VRAM SIMMS or not, and perhaps what speed?
Thanks in advance.