this post was submitted on 22 Mar 2025
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No, This is the Fastest MS-DOS Gaming PC Ever | TheRasteri (youtu.be)
submitted 3 weeks ago by [email protected] to c/[email protected]
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via https://hackaday.com/2025/03/22/the-fastest-ms-dos-gaming-pc-ever/

After [Andy]’s discovery of an old ISA soundcard at his parents’ place that once was inside the family PC, the onset of a wave of nostalgia for those old-school sounds drove him off the deep end. This is how we get [Andy] building the fastest MS-DOS gaming system ever, with ISA slot and full hardware compatibility. After some digging around, the fastest CPU for an Intel platform that still retained ISA compatibility turned out to be Intel’s 4th generation Core series i7-4790K CPU, along with an H81 chipset-based MiniITX mainboard.

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[–] [email protected] 3 points 3 weeks ago

For anybody who, like me, was wondering how the fuck a miniITX board, of all things, had ISA support:

[Andy] had to tap into the LPC (low pin count) debug port & hunt down the LDRQ signal on the mainboard. LPC is a very compact version of the ISA bus that works great with ISA adapter boards, specially an LPC to ISA adapter like [Andy]’s dISAppointment board as used here.