Is there any way to use an 8bit 1MB 30 PIN SIMM module on the ISA BUS of an XT machine without any onboard DRAM? or something along the lines of this instead? https://github.com/homebrew8088/8088-PC-Compatible/tree/main/Kicad/64K%20640K%20ISA?fbclid=IwAR3sd78_fLbhq8VUJmpboYt6_HmoNgVxGaTXI0Zj- …

Would love to try and build my own , to test on my Turbo M1011 Acer board 256K x 1 bit dram ICs are easier to get and problem is 1M x 1bit very hard to find in DIP package and either way, very expensive to obtain. I have same problem right now and I cannot find any sources to get 1M x 1bit 80ns or …

I have a EXCEL TURBO v3. 1 8088 clone (very similar to the 8mhz DTK clones) Has a 10MHZ Sony branded V20 currently running at 9.45MHZ Usual 640k RAM, Oak VGA, XTIDE, and an Adlib clone. Noted some interesting behavior after populating the remaining option ROM sockets with SRAM modules. (purely out …

I believe the reason PC Sprint is limited to a 2x speedup on a XT 5160 is that additional wait states are needed to go any faster. The Turbo XT boards will be inserting wait states already to get to 10Mhz, but I'm guessing you'd need more to go faster. Sorry to dig this up, but I am wondering if …

I wonder if it would be possible to use FPUs, though from what I've read that's a real painful process. I have an AMD 386 DX 40 with 16MB RAM, Cirrus Logic ISA video, and Cyrix FPU. Runs much faster than vinilla Doom, even in low detail mode. 132x200 mode with a 64color palette... Wonder is that …

Got a working card without issues, however TSRs in DOS... How on earth to load the driver in DOS 6.22

Hi guys! Looking for a vintage-ish ATI Radeon PCI-only card. R200 chipset mainly the 9000 and 9250's for a Digital ALPHA project I'm located in Cape Town, South Africa