Fun chip ideas and typical overclocks:

2.2v cyrix (up to 350mhz)

Tillamook 266 (up to 450 mhz)

Rise 266-366 (up to 366 mhz)

The M571 has a very nice on-board sound card, based on the CMI8330 chip.

It's low noise and very compatible, so I would use it for DOS gaming. A Pentium MMX 166 would be a good CPU to pair with it, if you take that route.

Sphere478 wrote on 2022-08-03, 19:02:

Fun chip ideas and typical overclocks: […]
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Fun chip ideas and typical overclocks:

2.2v cyrix (up to 350mhz)

Tillamook 266 (up to 450 mhz)

Rise 266-366 (up to 366 mhz)

Good idea on the Tillamook, but I should mention that I have a Gateway Solo 2500 laptop that I upgraded from the 166 to a 266mmx Tillamook.
So I kinda feel like it is already represented.

But how hard are Rise chips to source these days? I kind of figured it was practically vaporware at this point.

Joseph_Joestar wrote on 2022-08-03, 19:08:

The M571 has a very nice on-board sound card, based on the CMI8330 chip.

It's low noise and very compatible, so I would use it for DOS gaming. A Pentium MMX 166 would be a good CPU to pair with it, if you take that route.

Yes. I think that you are the one who informed me of that chip. I haven't the header unfortunately. I'm not sure on the pin out but maybe I could scour one on eBay.
The machine is currently using a ESS Audiodrive, i only have 3-4 ISA sound cards so a good onboard option would be nice.

Jasin Natael wrote on 2022-08-03, 19:32:

I'm not sure on the pin out but maybe I could scour one on eBay.

The pinout for the microphone and line out connectors is available. I built myself a custom line out bracket using that.

BTW, that board is extremely well documented. A bunch of info and drivers can be found here and also here.

No interest in a P233-mmx?

The other chips (e.g. cyrix) seem like a fun experiment if you can get your paws on one

Jasin Natael wrote on 2022-08-03, 19:30:

Good idea on the Tillamook, but I should mention that I have a Gateway Solo 2500 laptop that I upgraded from the 166 to a 266mmx […]
Show full quote

Sphere478 wrote on 2022-08-03, 19:02:

Fun chip ideas and typical overclocks: […]
Show full quote

Fun chip ideas and typical overclocks:

2.2v cyrix (up to 350mhz)

Tillamook 266 (up to 450 mhz)

Rise 266-366 (up to 366 mhz)

Good idea on the Tillamook, but I should mention that I have a Gateway Solo 2500 laptop that I upgraded from the 166 to a 266mmx Tillamook.
So I kinda feel like it is already represented.

But how hard are Rise chips to source these days? I kind of figured it was practically vaporware at this point.

Not that hard. Watch ebay. They pop up now and then.

https://www.ebay.com/itm/363848589886?epid=13 … IoAAOSwsRBii7jc

Here is one of the 433gp core cyrix chips.

Joseph_Joestar wrote on 2022-08-03, 19:41:

Jasin Natael wrote on 2022-08-03, 19:32:

I'm not sure on the pin out but maybe I could scour one on eBay.

The pinout for the microphone and line out connectors is available. I built myself a custom line out bracket using that.

BTW, that board is extremely well documented. A bunch of info and drivers can be found here and also here.

Ok that is good to know it can be done. I used both of those links quite a bit getting that board to behave with the K6-3+

drosse1meyer wrote on 2022-08-03, 20:30:

No interest in a P233-mmx?

The other chips (e.g. cyrix) seem like a fun experiment if you can get your paws on one

It isn't that I don't have interest in one. It's just that I like to do something different with each build if I can.
While I don't have a pMMX running in a desktop, I do have the Tillamook 266 running in a laptop.

Nothing wrong with an Intel 233 build, it's just been done to death.
Honest if I do go that route I will likely stick with the 166mmx as I already have one and I actually had one at that speed back in the day. So I have a LITTLE nostalgia for one.

Sphere478 wrote on 2022-08-03, 21:56:

Not that hard. Watch ebay. They pop up now and then. […]
Show full quote

Jasin Natael wrote on 2022-08-03, 19:30:

Good idea on the Tillamook, but I should mention that I have a Gateway Solo 2500 laptop that I upgraded from the 166 to a 266mmx […]
Show full quote

Sphere478 wrote on 2022-08-03, 19:02:

Fun chip ideas and typical overclocks: […]
Show full quote

Fun chip ideas and typical overclocks:

2.2v cyrix (up to 350mhz)

Tillamook 266 (up to 450 mhz)

Rise 266-366 (up to 366 mhz)

Good idea on the Tillamook, but I should mention that I have a Gateway Solo 2500 laptop that I upgraded from the 166 to a 266mmx Tillamook.
So I kinda feel like it is already represented.

But how hard are Rise chips to source these days? I kind of figured it was practically vaporware at this point.

Not that hard. Watch ebay. They pop up now and then.

https://www.ebay.com/itm/363848589886?epid=13 … IoAAOSwsRBii7jc

Here is one of the 433gp core cyrix chips.

Yeah I have been browsing about a little looking at them. I don't know much about them. I seem to remember they have two variants, one with a more reasonable voltage and one with like 3.2volt vcore or something?

I'd honestly like to find a working MP6 for cheap, but hey....

Rise cpu voltage and multiplier settings

Sphere478 wrote on 2022-08-03, 22:51:

Rise cpu voltage and multiplier settings

Ah, thanks. I was a bit off on the voltages but I knew there was something of two different models.
Honestly I'm leaning towards Cyrix as they seem cheap enough and easy to find. But it's something at least a bit different.

Also my M571 isn't REALLY stable at 83mhx FSB, it will do it but locks up occasionally.
It is much happier at 75mhz FSB and that could match up nicely with a Cyrix.

Overclocked you may be able to get that one I linked to 500gp level

Sphere478 wrote on 2022-08-04, 00:18:

Overclocked you may be able to get that one I linked to 500gp level

Yeah I added it my watchlist. Pins look a little ragged but not too bad, everything looks workable.
I see a chip in the ceramic in one corner but that shouldn't be and issue.

I would assume that the 2.0v chips are better overclockers as opposed to the 2.9v chips?

It's a PCChips board, go full troll build: Early Cx6x86 with a Rage Pro and an AD1816 or OPTi931 sound card.

appiah4 wrote on 2022-08-04, 14:20:

It's a PCChips board, go full troll build: Early Cx6x86 with a Rage Pro and an AD1816 or OPTi931 sound card.

🤣 that is actually somewhat tempting! But I would have to substitute a SiS 6326 for the Rage Pro.
Rage Pro is just way to fast. HAHA

Jasin Natael wrote on 2022-08-04, 13:10:

Yeah I added it my watchlist. Pins look a little ragged but not too bad, everything looks workable. I see a chip in the ceramic […]
Show full quote

Sphere478 wrote on 2022-08-04, 00:18:

Overclocked you may be able to get that one I linked to 500gp level

Yeah I added it my watchlist. Pins look a little ragged but not too bad, everything looks workable.
I see a chip in the ceramic in one corner but that shouldn't be and issue.

I would assume that the 2.0v chips are better overclockers as opposed to the 2.9v chips?

Look at the back if the black square is small and voltage is low that is the one you want.

Sphere478 wrote on 2022-08-04, 21:24:

Jasin Natael wrote on 2022-08-04, 13:10:

Yeah I added it my watchlist. Pins look a little ragged but not too bad, everything looks workable. I see a chip in the ceramic […]
Show full quote

Sphere478 wrote on 2022-08-04, 00:18:

Overclocked you may be able to get that one I linked to 500gp level

Yeah I added it my watchlist. Pins look a little ragged but not too bad, everything looks workable.
I see a chip in the ceramic in one corner but that shouldn't be and issue.

I would assume that the 2.0v chips are better overclockers as opposed to the 2.9v chips?

Look at the back if the black square is small and voltage is low that is the one you want.

Ok, that is good to know. Thank you.

Jasin Natael wrote on 2022-08-03, 19:30:

But how hard are Rise chips to source these days? I kind of figured it was practically vaporware at this point.

It seems like the iDragon (2.0V version) shows up more often than the originals, but that's also generally what you want.