If NO IMAGES will be shown, use www.z80.eu/blog instead of blog.z80.eu

Please note also - THIS BLOG ENDS HERE WITH THE LAST ENTRY FROM NOVEMBER 9th 2021.

I have prepared a new blog with wordpress at https://vintagecomputing.info !!!

Thank you.

Promised, this is the last entry about the (beautiful) IBM Portable PC 5155.
I replaced my original, really long CGA card with an ATI EGA Wonder (first series).
And I was surprised how good many EGA capable games are looking.

EGA high resolution with 640x350 pixels don't seems to work with the composite monitor:

But "Blockout" (a 3D Tetris alike DOS game) DOES work with 640x350 pixels. So it seems that some games forces a higher vertical frequency and some not. You have to try what game does work and what not...

But mid res EGA (320x200x16) does work always, and looks very nice:

(this is Arkanoid II, Revenge of Doh)

And of course, CGA games are still possible:

(this is TAPPER, a real classic for the PC/XT category computer)

Also, 640x200x16 (EGA high res with 200 lines) is also possible with the build in CGA composite monitor of the IBM Portable PC.

Btw. >vgamuseum.info does NOT list the used ATI EGA Wonder<. This version has 3 large integrated chips, 2 from CHIPS Technology and one gate array chip from National Semiconductor, named "SCX6244":

Unfortunately the original software floppy disks can't be found anymore, I only found the "SMS.COM" video mode switching program for DOS.

To show PCX images, I used 2SHOW (CompuShow 2000, runs on a plain IBM PC/XT and can also display JPG for example).
Many image viewer and converter for DOS can still be found, see "related link".