There is a compatibility table at the bottom of [here].Has anyone found a reasonable price on the (24) 4416 memory chips needed for this board ?
See [here].In preparation for this, I pulled out my IBM EGA and stuck it in my 5150. It works, but checkit is showing memory errors between 0A0000h and 0A001Eh. There appear to only be 8 memory ICs on the EGA, but I don't recognize the part numbers. Also do not know which one would correspond to this range. I've attached a photo. Any thoughts?
inmos databook 1986
Page 2-15 (Page 82 of the PDF)
IMS2620 High Performance 16Kx4 Dynamic RAM
The IMS2620 16K x 4 bit dynamic RAM is fabricated
with INMOS' advanced Double Poly N-MOS technology
and utilizes advanced circuit techniqes to achieve high
performance, low power and wide operating margins.
Multiplexed addressing and common data I/O allow the
IMS2620 to be packaged in an 18-pin, 300-mil wide
plastic DIP with JEDEC standard Pinout.
And CheckIt is reported to do something similar for the IBM PS/2 Display Adapter when a monochrome VGA monitor is connected.I'll be damned! So there is no problem at all, good thing I didn't break out the desoldering gun yet.
Some compatible chips shown at the bottom of [here].Excellent, thanks. Good to know they are JEDEC standard 16kx4 DRAMs in case I ever do have an issue with one
I ended up ordering this pin header for the project
According to my measurements, it should be almost perfect and better yet it's a stock item at digikey