The S3 Trio64V+ is a common PCI video card.
This card uses S416270DJ-06 RAM chips. This is a 256k x 16-bit 60ns 5V EDO chip, in a 40-pin SOJ package. Suitable chips can be found on eBay by searching for 256Kx16 memory chips and confirming they are of the correct package type and 60ns or faster.
Compatible part numbers are:
- EliteMT M11B416256A - untested