appiah4 wrote on 2024-05-01, 17:32:

A 32GB TNT2 M64 eh? 😅

No, of course, for such performance in SS7, I needed a R9800pro.

appiah4 wrote on 2024-05-01, 17:32:

A 32GB TNT2 M64 eh? 😅

🤣 good spot, and I used to think my Radeon R9 had wasted VRAM...

DarthSun wrote on 2024-05-01, 14:35:

You need a good setup and you're near Intel or better ...

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Excellent, thanks for sharing - looks like I'm pretty much getting the most out of my chip then.

So this is not really the right place to ask this, but, it is related to a Socket 7 based system I just picked up with a Cyrix CPU - so better than starting a new thread?

The board in this system has both AT and ATX PSU headers. At present it's using its original AT PSU.

Were I to use an ATX power supply instead, how would it switch on? I'm assuming like modern ATX boards, it would have front panel headers that need to be shorted, but where does that leave the power button switch currently connected to the PSU? I don't mean to be lazy - the board appears to not have a manual online, and I've done some googling about how these dual AT/ATX boards tend to hook up to the power button, but it's one of those questions that yields irrelevant results from searches.

I guess I could replace the mechanism from the button with a standard box-shaped breaker and two wire circuit?

Thanks 😁

Dan386DX wrote on 2024-05-05, 00:55:

So this is not really the right place to ask this, but, it is related to a Socket 7 based system I just picked up with a Cyrix C […]
Show full quote

So this is not really the right place to ask this, but, it is related to a Socket 7 based system I just picked up with a Cyrix CPU - so better than starting a new thread?

The board in this system has both AT and ATX PSU headers. At present it's using its original AT PSU.

Were I to use an ATX power supply instead, how would it switch on? I'm assuming like modern ATX boards, it would have front panel headers that need to be shorted, but where does that leave the power button switch currently connected to the PSU? I don't mean to be lazy - the board appears to not have a manual online, and I've done some googling about how these dual AT/ATX boards tend to hook up to the power button, but it's one of those questions that yields irrelevant results from searches.

I guess I could replace the mechanism from the button with a standard box-shaped breaker and two wire circuit?

Thanks 😁

You also need to start with AT/ATX power. ATX with the Power spike, ATX with a starter and AT Power is turned on with power. There are some that can be selected with a jumper on the motherboard, some that automatically handle it.

DarthSun wrote on 2024-05-05, 07:54:

Dan386DX wrote on 2024-05-05, 00:55:

So this is not really the right place to ask this, but, it is related to a Socket 7 based system I just picked up with a Cyrix C […]
Show full quote

So this is not really the right place to ask this, but, it is related to a Socket 7 based system I just picked up with a Cyrix CPU - so better than starting a new thread?

The board in this system has both AT and ATX PSU headers. At present it's using its original AT PSU.

Were I to use an ATX power supply instead, how would it switch on? I'm assuming like modern ATX boards, it would have front panel headers that need to be shorted, but where does that leave the power button switch currently connected to the PSU? I don't mean to be lazy - the board appears to not have a manual online, and I've done some googling about how these dual AT/ATX boards tend to hook up to the power button, but it's one of those questions that yields irrelevant results from searches.

I guess I could replace the mechanism from the button with a standard box-shaped breaker and two wire circuit?

Thanks 😁

You also need to start with AT/ATX power. ATX with the Power spike, ATX with a starter and AT Power is turned on with power. There are some that can be selected with a jumper on the motherboard, some that automatically handle it.

That's great, thank you very much.

Guess this is a good place to show off this cool Cyrix based SBC I bought a while back.
Motherboard is a Acrosser AR-B1570 which is mounted on a ISA backplane with 2 free slots (have a sound card in one).
CPU is a Cyrix Geode GX1 300mhz. Runs like something between a 486 and P1.
Very nice little box.

That's a pretty damn nifty little box you got!

appiah4 wrote on 2024-07-02, 05:53:

That's a pretty damn nifty little box you got!

Yes, I was quite happy to score it for next to nothing in an auction a few years ago.
That said, I don't really have much use for it currently, since my Socket 7 rig does more or less the same things but better. Need to figure out what to actually do with it at some point.

buffi wrote on 2024-07-02, 07:00:

appiah4 wrote on 2024-07-02, 05:53:

That's a pretty damn nifty little box you got!

Yes, I was quite happy to score it for next to nothing in an auction a few years ago.
That said, I don't really have much use for it currently, since my Socket 7 rig does more or less the same things but better. Need to figure out what to actually do with it at some point.

If I had such a thing I would probably embed it in or under a desk and connect it as a secondary source (VGA) to my main monitor. It would be a great DOS gaming setup that wouldn't take up space.

Yes seems easy to find a spot for something that small. I kinda want one. Was surveying the territory though, seems like Savin Hitech is very Swedish in that machines only get a few hundred miles from Sweden usually.

How do you classify that CPU though, 5x86 on steroids or a 6x86 SX ?

AFAIK it is basically a MediaGX which is a 5x86 with media extensions.. So it is a very fast 486DX. If they enabled some of the enhancements 5x86 had turned off by default, it might come with some extre bells and whistles like branch prediction etc.

BitWrangler wrote on 2024-07-02, 13:02:

Yes seems easy to find a spot for something that small. I kinda want one. Was surveying the territory though, seems like Savin Hitech is very Swedish in that machines only get a few hundred miles from Sweden usually.

How do you classify that CPU though, 5x86 on steroids or a 6x86 SX ?

Finding a spot is easy, but its more that I already have a Socket 7 PC connected which does everything this thing does and more, so this feels a bit redundant.
Might bring it to work and have it for DOS gaming with coworkers there though.

And yeah, I'm in Sweden and found it on a local auction site.

The design of the case is REALLY nice, and definitely custom made for this board.
Model of the case is AR-IPC3SP 1570, and there's a spec sheet here:
https://b3industrie.nl/wp-content/uploads/201 … AR-IPC3SP-B.pdf

Has a PSU at bottom, then a HDD on top of that connected to the SBC above. Behind the SBC mobo is two ISA slots.

My 6x86MX-PR200 runs quite well and is usually not as slow as is often claimed. Only Age of Empires doesn't work that well. And the Rise of Rome addon becomes unplayable after a short time due to stuttering. Patches are of course installed. Age of Empires doesn't like Cyrix CPU`s? Or is it just my machine?

Demolition-Man wrote on 2024-07-02, 19:22:

My 6x86MX-PR200 runs quite well and is usually not as slow as is often claimed. Only Age of Empires doesn't work that well. And the Rise of Rome addon becomes unplayable after a short time due to stuttering. Patches are of course installed. Age of Empires doesn't like Cyrix CPU`s? Or is it just my machine?

Cyrix is explicitly listed so it’s likely something else.

Worth noting you are just above the minimum requirements for rise of Rome so you have very little headroom if other parts of your machine are weak.

Have you tried running it with an OG Pentium in the machine?

Good to know, thx. The machine has an ATi Rage 3D II 4MB, and 96MB RAM. I can play Command & Conquer: Tiberian Sun with it for examble.
I only have a Pentium 120 as a spare part.
I`ll test a different cpu some time.

But continue with the Cyrix appreciation: I would never have thought that you could play more complex games with such a CPU. Since I got a Voodoo 1, I can even play things like Wing Commander Prophecy or Freespace 1. Of course there are limits, with Unreal the maximum of playability is definitely reached.
What else: On the hottest day the CPU fan simply failed and I noticed it too late (freeze, then smell),. I have no idea how hot the CPU got, but it was a few degrees more. then usual^^ New fan, and the CPU works again. My first CPU that is neither from Intel nor AMD. Just fun. Cyrix also had an interesting story.

gonzo wrote on 2023-05-14, 09:31:

Jasin Natael (and everybody else having the same problem), here is the solution for the "Read MSRs"-problem of Speedsys under DO […]
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Jasin Natael wrote on 2022-09-08, 18:04:

Speedsys: CPU score of: 199.99 from Windows 98 command prompt. Hangs at read MSRs when ran from DOS

Jasin Natael (and everybody else having the same problem), here is the solution for the "Read MSRs"-problem of Speedsys under DOS:

-> attached in the 7z-file they are two files named "err_msr.xxx"
-> unzip them and copy both of them inside of your speedsys-directory
-> EVERYTIME before starting of speedsys, just execute the "err_msr.com" once -> and after that start Speedsys.

That's all.

I found this solution a while ago on the internet here: https://dosreloaded.de/forum/thread/5184-pc-c … yrix-mii-pr300/

The files are not mine, so I can not give any support about them.

Tested successful with a Cyrix MII.

Your post seems to have gone unnoticed.

Thank you! It's the only way I could make it work.

Just slapped a Cyrix 486DX-40 into a rather generic (DataExpert) OPTi '495 (the OG version) based motherboard, clocked at 33MHz. It works. Not exactly putting up stunning numbers, but that isn't the point of the build it's in (it's a Qbasic code benchmarking rig, among other low end stuff).

I do like though how Cyrix 486DX chips tend to run a little bit cooler than comparative Intel and AMD chips, probably due to it shutting the FPU off when it's not in use, thereby running like a 486SX most of the time. I just wish the profoundly more interesting 6x86 line as a whole did that too.

DarthSun wrote on 2024-05-01, 14:35:

You need a good setup and you're near Intel or better ... […]
Show full quote

You need a good setup and you're near Intel or better ...

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Nice! These belong in the 686 Benchmark thread. I also ended my testing at about 600 MHz.

feipoa wrote on 2024-11-09, 04:37:

DarthSun wrote on 2024-05-01, 14:35:

You need a good setup and you're near Intel or better ... […]
Show full quote

You need a good setup and you're near Intel or better ...

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Nice! These belong in the 686 Benchmark thread. I also ended my testing at about 600 MHz.

Thanks!
The full test here.