First post, by bhtooefr
Thought I'd go ahead and post up this machine (my oldest x86 machine).
IBM 5155 Portable Personal Computer
IBM XT motherboard (previous owner had a VIP TXM/10-II 9.54 MHz clone board installed) with 128 KiB RAM installed
AST SixPakPremium with second serial port and game port options installed (second serial port has a 16550 UART) and 1024 KiB EEMS (I could use a PremiumPak to take that to 2048...)
IBM CGA (presumably original to the machine)
IBM FDC (presumably original to the machine)
WDC WD1002-27X RLL hard drive controller (previous owner had a WD1002S-WX2 MFM controller installed)
SMC 8003WC ethernet controller (you know how hard it is to find a short (to fit behind the drives) 8-bit ethernet card with UTP support (because AUI transceivers are awful)? Pretty hard, and this one is UTP draft standard. Works fine, though.)
Single floppy drive
Seagate ST-238R hard drive (when I saw that this thing was actually a 238R, not a 225, I had to buy the RLL controller, and it being a short card helped out my slot allocations a lot)
Microsoft BallPoint (because why not, I had the serial port free)
And, pictures:
I'm aware of the irony of running a demo that displays 1024 colors on CGA, on a monochrome display.
Yes, the I/O bracket in slot 4 is a bit bent. Technically, running a 25-pin serial port is an anachronism, too - the card's official serial ports are all 9-pin.
This is slightly ridiculous. And, there's two slots left unfilled! (Really, slot 6 is the only one that'll be practical to fill, I think - slot 8 is where all the cabling for the drives had to be stuffed on top of.)
And a side view.