Looks like those are probably the standard 256kx4 70ns chips used on pretty much every video card of the era. They go under a lot of part numbers, so a cross reference would do you good for searching them.

Thanks a lot for this info. I have made an ebay saved search, with those part numbers. This is curious - I googled this text phrase: Orchid Fahrenheit 1280 Plus, and looked at google's images. There's a close up shot in the results. (Image 4172a.jpg.) If you click on it, and look at the RAM chips, they say 05! That's unusual, isn't it? When I looked for those RAM chip part numbers on ebay, the fastest I could spot were 80ns, although I didn't spend too much time looking this morning..

Ah, you're right, the -05 would indicate 50ns RAM... that stuff is gonna be a bitch to find. You said you bought a couple of those cards... the best move may actually be just to borrow the RAM off of one to populate the other.

Good thinking! 😀 BTW, do you know what chip it uses? I've googled for it, and it seems to be by S3. Just wondered which S3 number? The Orchid Fahrenheit 1280 "not the plus" model listed on the Stason website is "911".

It's probably an S3 805. I'm not 100% sure on that, but it looks DRAM-based, rather than VRAM, and it also appears to be a fairly early-model VLB card, so the 805 is the most likely candidate.

Some say 805, some say 801:

http://xjman.dsl.gr.jp/XF311/AccelCards.html
http://download.oracle.com/docs/cd/E19620-01/ … 4kf8/index.html

I believe the only difference between the 801 and 805 is that the latter adds VLB support.