Re: Idea CMS emulation via TSR
Posted on 2022-01-21, 22:47
SAA1099 has two noise channels per chip according to the datasheet.
Re: New processors for old sockets.
Posted on 2022-01-01, 22:21
Interesting point about RISC/CISC, but even in FPGA RISC cores are slower than custom silicon. Definitely true. A 65nm FPGA can just about squeak out 75MHz for a RISC-V core, roughly what was being done with 800nm processes by MIPS/SPARC. With later x86 cores becoming RISC with instruction set …
Re: New processors for old sockets.
Posted on 2022-01-01, 22:02
Despite all evidence to the contrary Moors law broke in 2009, we have been coasting on more highly parallel units for a decade, that is extraordinarily inefficient and has impacted bloat to the point you can’t run a plain graphics version of Solitaire on a 3ghz p4. This slow down expands out to …
Re: Intel atom simulated on a fpga plugged into socket 5/7 motherboard
Posted on 2021-12-31, 14:51
The Atom paper references a different one where a research team in 2007 put an original Pentium core on an FPGA in a Socket7 system. They had to underclock the board to 25MHz and it seems the CPU ran at 25MHz as well. https://www.eecg.utoronto.ca/~yiannac/docs/fpga07.pdf
Re: Intel atom simulated on a fpga plugged into socket 5/7 motherboard
Posted on 2021-12-31, 14:38
I suspect bus translation of an actual Atom would be quite different from how it was done in the paper. (Page 6, heading 4. EMULATION ON A PC PLATFORM) In the Atom processor, one of the uncore functions is to bridge between the Atom core and the processor’s pins. Of particular importance is the …
Re: Intel atom simulated on a fpga plugged into socket 5/7 motherboard
Posted on 2021-12-31, 14:26
Seems like you can do a lot with a $1000+ FPGA. Not sure what the price of the XC5VLX330 was originally, but on eBay right now it's $1500 and on Digikey it's nearly $17,000, though that's probably just priced that high because they'd have to spin back up a production line.
Re: Rubber feet browned my PC metal case
Posted on 2021-12-29, 23:17
Magic Eraser?
Re: Lowest spec Windows XP pc.
Posted on 2021-12-01, 03:47
Slowest of which I'm aware is an 8MHz Pentium OverDrive. XP will likely "run" on any system with the pentium instruction set. It'll be slow, but it will boot. I wouldn't rule out later service packs or updates accidentally requiring 686 instructions though. https://www.winhistory.de/more/386/xpmini_ …
Re: New processors for old sockets.
Posted on 2021-11-25, 21:08
If there's gonna be new interposers, I want a CT-479 clone to let me install a Pentium M in a P4 board.
Re: Voodoo 3 has OpenGL support in Windows 11?
Posted on 2021-11-23, 21:21
Microsoft Basic Display Adapter means OpenGL is running in software. Microsoft Basic Display Adapter supports up to OpenGL 1.1 in software. It's pretty neat that it does work, but MBDA doesn't accelerate with any video card. Your Voodoo is being used as a framebuffer. Any OpenGL support is purely in …
Re: New processors for old sockets.
Posted on 2021-11-23, 17:39
I was thinking, isn't the increase in mhz going to yield a linear increase in performance? Not quite. On old systems like 086/088, 186, 286, 386, (and 486 before clock multipliers), the bus clock speed and CPU speed are the same. So, for them increasing the CPU speed does yield a pretty much linear …
Re: New processors for old sockets.
Posted on 2021-11-22, 23:07
Pretty sweet! Hopefully soon we may have ones for later sockets I don't think so. The one is pretty simple, they've just probably somehow die shrinked it, to get 100 mhz. But I don't know, didnt analyzed it, how they've improved it. I doubt they ever get even to 286 level in home conditions, as …
Re: Gotek like Optical Driver Emulator - Is it possible?
Posted on 2021-11-05, 16:47
Would it be possible to use it as an IDE-XT (also known as: XT-IDE, XTA) hard drive? Those are becoming very difficult to obtain, and some systems like the PS/1 will only accept drives matching the exact parameters of the original drive.
Re: The Imaginary "It's All About The Pentiums" Build
Posted on 2021-11-05, 00:13
100GB of RAM is completely implausible for a Windows-OS-running system of this age. The idea that he has 100+GB of RAM overall, not just in one system, seems like the right angle. Perhaps he has as much RAM as he can feasibly cram in the one x86 machine, and he has a non-x86 server off somewhere …
Re: Differences between rise socket 7 cpus
Posted on 2021-11-01, 04:38
It's a shame it seems somewhat rare. If it were cheaper it'd be fun to whack a ridiculous overvolt on it and see if it can reach the highest specified bus speed (100mhz) with the highest specified multiplier (3.5). A 350MHz MP6 might even be as fast as a Celeron!
Re: Browsers, XP, Linux, Mint, everything
Posted on 2021-10-22, 22:09
Isn't iridium chromium? I wouldn't expect that to behave well in low memory conditions... I wouldn't recommend a plain windowmanager to someone who has admitted they "don't know anything about Linux", a DE would be preferable to lessen the learning curve. Also I'm not sure where you got the idea …
Re: Browsers, XP, Linux, Mint, everything
Posted on 2021-10-22, 20:46
Lubuntu is also a good choice, yeah. It's also a bit windowsy, so if that's the interface you're used to it's a good choice. Midori is a lot lighter than Firefox for sure, but it definitely is missing a lot of features other browsers have, and can cause serious problems with some websites. The CPU …
Re: Browsers, XP, Linux, Mint, everything
Posted on 2021-10-22, 20:12
Even light Linuxes tend to be somewhat heavier on RAM than XP. You'll want to upgrade, and you will definitely not want to run Mint 12. For your use case you'll probably be best off with Mint 20.2 XFCE, which is to say the most recent version of Mint, with the XFCE desktop. XFCE is quite light and …
Re: Do those exist at all: Serial-to-USB / Parallel-to-USB / SCSI-to-USB / PCMCIA (Type I or II) to USB adapters ?
Posted on 2021-10-16, 19:31
If it has an ISA bus, accessible in some way, then you could add a USB connector for storage devices using the CH375 chip. Although it will be abysmally slow. :) You could use a CH376 and bitbang SPI over the parallel port, or design a card with a couple shift registers to convert the parallel to …
Re: Who here has heard of this drive? :)
Posted on 2021-10-14, 22:33
Inspired from your post, I searched a while for a 5.25 drawer bay. It would be so cool to be able to stash boot diskettes and CDs/DVDs in a drawer in a 5.25" bay! Any idea whether such things actually exist? They do! Here's one on Amazon, but there's loads from other brands as well: https://www. …
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