Well hi there!! Yes, I tested your board and so far it is at the top of my list in terms of replacement parts (although I think I already have a dead XT that I need it put it into.) I forgot about the video demo, you saw http://www.oldskool.org/pc/8088_Corruption before I had even gone to the party where it won a prize, I think. Hope all is well with you.MattCarp wrote:Hi Jim, you may recall I was the guy who sold you an XT motherboard from eBay (I think it was eBay) in the 2003-2004 timeframe. I stopped by to deliver it and you showed me your 4.77 video demo!Trixter wrote:While I have a "superjr" (7.16 Mhz NEC V20, 640KB without use of sidecar, Tandy mod) a
What components are you using to achieve 7.16MHz and the memory expansion?
The 7.16MHz NEC V20 mod is courtesy of a daughterboard that is installed in my 8088's socket, which I believe is a PC Enterprises jrExcellerator. Which means, it's not really 7.16Mhz but 9.54 MHz. I don't have it set up at the moment so I can't tell you for sure.
One of the things I'm going to build into my upcoming benchmarking program is a comprehensive system/cpu/speed detection unit that can hopefully answer questions like this without needing to crack the hardware physically open.