Camera speed, yes.

I think it halts on e8 or something.

It does that with any non intel processor I believe. I would have to run test again.

Well,

I guess I can physically install the socket. Won’t hurt to try right? At least it will look cool.

And look into that battery holder posted earlier.

Sphere478 wrote on 2022-12-07, 02:55:

I played with some bios settings:

Not the external cache setting though oddly,

And….

Time to do CacheCHK to see how much of that 512MB can be cached 😀

Shouldn't have surprised me, Intel has done this lots of times. Just bought 2x 8GB DDR3 for m'n SO's i7-860, which supposedly does max 4GB per DIMM, 16GB total. Nope, she now has 24GB and can upgrade to 32GB if needed.

Sphere478 wrote on 2022-12-07, 02:26:

Tried a winchip.

Yeah, this bios is definitely doing this on purpose 🤣. Gonna have to hack it or ditch it.

Given all the unusual onboard stuff (SCSI, sound) that might be a challenge. MR-BIOS is amazing, but I'm not aware of any i430NX boards supported, let alone one with an unusual NCR Super-IO chip. Might make it all the more interesting if you're able to hack it.

Yeah, I've come up with zilch on that ncr chip. Maybe a separate IO card would work and allow other BIOSes to be used?

Installing a second socket probably won't hurt, although I don't know what controls CPU access to the bus and both trying to write to it at the same time sounds like it'd do bad things. Incidentally, you may have already read the wikipedia page on APICs: https://en.wikipedia.org/wiki/Advanced_Progra … rupt_Controller but after reading that then I'm wondering if a board with the 82489DX APIC chips would allow non-Intel CPUs to do MP as all the APIC stuff is then external and it doesn't rely on the bits Intel built in to later CPUs. Only problem is I can't just find any board with it.

I don’t believe that two cpus in a board with unsupported/missing apic would be a dangerous scenario. Would probably just not work bus collisions don’t seem to do damage, and intel chips I believe would by default be working in tri state anyway. But mps would probably just not work with no apic. Guessing.

I have to admire your chutzpah - you treat known limitations as challenges, which could be described as foolish or worse, but you just chip away at it and discover stuff like the K6-2+ cache unlock by ignoring other people telling you what's not possible. That one alone earns you a place in the annals

It's called intellectual curiosity. Often laughed at and/or faced with "we've always done that way and it's always worked". That's how you learn new things.

Not sure I can contribute much more on this thread to be honest as I am 100% unfamiliar with that board! 😀

Today’s project was the socket.

You may have noticed that my socket (primary) was in bad shape.

I didn’t want to go through the trouble to replace it but I did take it apart and replaced the lever and slider. Which is good enough for now.

I also installed the second socket. Which is kinda a pain. Bur I have practice. It took two hours I think? Anyway. It still works and continues to act buggy as hell and be very picky about cpus

But still working is a win for now.

Have been unable to confirm function of second cpu suspect no dual is ocuring.

That’s a problem for another day.

For now I want to figure out what that IC was that I removed from the socket pad to install the socket?

I reinstalled the part in question.

Seems to be a 1nf capacitor.

No change noticed

It seems to be between vss and reset.

getting these soon.

Looky, one has the scsi populated!

Are those all Zeos boards?

7F20 wrote on 2022-12-27, 19:34:

Are those all Zeos boards?

It seems so

Got some more zēos motherboards today unfortunately not in the best of shape. But might play with the vlsi dual at some point. Can anyone tell me anything about the vlsi chipset? Is it rebranded intel?

Truly VLSI.

Cheers,

pentiumspeed wrote on 2023-02-17, 19:34:

Truly VLSI.

Cheers,

Excellent! Makes me even more curious to play with it!