Hello everyone. My apologies to bother again, but I picked up a CL-GD5428 VLB card off of eBay for a build of a computer that I plan to give away on my retro streams online and it's the Pine PT 524/8G video card with the 28 variant chip. It has one Megabyte of ram soldered to the board which is 256Kx16. The chips are MT4C16257DJ-7. Looking up the information shows it to be 70ns DRAM which means the additional chips to add will need to be DRAM, but I don't know which ones to get. I can identify that the sockets are 20 pin DIP sockets, and the total amount needs to be 128KB per RAM IC, but should I be looking at 256kx4 DRAM ICs, or 128x8 DRAM ICs, or 64x16 (If that even exists) DRAM ICs? I looked up the card and I found lots of information but I didn't see anything specific to the type of DRAM, just that it could be FPM or VRAM. And I'm guessing that since it's DRAM and not VRAM, that it's FPM. But I could be 100% wrong of course. If anyone can help me I would be super appreciative. I would like to install the extra 1MB of RAM. I don't know if it will help with memory speeds, but I know with a couple of their later cards the RAM bandwidth increased after installing the extra Megabyte. Thank you for looking and helping.

Warm Regards,

Nathan