David Cook
Well-known member
I just received a computer with a High Resolution Video Card. This unaccelerated card supports 512x384 and 640x480 modes (and maybe some weird modes with the right monitors and software?). According to Apple, this card had two model numbers: M0322 (630-4222) for 4-bit color, M0324 (630-4230) for 8-bit color. Sadly, my poor card has 8 empty DIP sockets; meaning it is the 4-bit card capable of displaying only 16 colors!

Wow!
Sometimes I buy an old Mac for the computer, sometimes I buy it for the video card. To avoid hurting the video card's feelings, let's just say I love the card and computer equally.
The back of the PCB has the number 820-0185-08. The ROM is 341-0660.

The leaky caps were just starting to damage the card. I replaced the capacitors, tinned bare traces, reheated nearby solder joints and vias. You can see some discoloration and solder mask removal in the image below. Fortunately, no traces needed repairs. If you have one of these cards, please recap it before it is too late.

For no good reason, I decided to upgrade the memory on the card. I just couldn't stand to see such wasted potential in the unfulfilled sockets. I ordered new NEC D41264C-12 dual port video DRAM chips from eBay for about $10.

Make sure to install the chips with the notch facing down, not up.

Double rainbow!

This isn't a particularly speedy card. But, it is period appropriate for a number of old Macs.

- David


Sometimes I buy an old Mac for the computer, sometimes I buy it for the video card. To avoid hurting the video card's feelings, let's just say I love the card and computer equally.
The back of the PCB has the number 820-0185-08. The ROM is 341-0660.

The leaky caps were just starting to damage the card. I replaced the capacitors, tinned bare traces, reheated nearby solder joints and vias. You can see some discoloration and solder mask removal in the image below. Fortunately, no traces needed repairs. If you have one of these cards, please recap it before it is too late.

For no good reason, I decided to upgrade the memory on the card. I just couldn't stand to see such wasted potential in the unfulfilled sockets. I ordered new NEC D41264C-12 dual port video DRAM chips from eBay for about $10.

Make sure to install the chips with the notch facing down, not up.

Double rainbow!

This isn't a particularly speedy card. But, it is period appropriate for a number of old Macs.

- David