bertrammatrix wrote on 2025-07-08, 15:53:Nice, and pozdrav do Cech :-) […]
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Nice, and pozdrav do Cech 😀
Very impressive.
I extensively messed around with IBMs (but just PGA) and an 918 last year at 120mhz (2x60). 60mhz with this board presented some issues requiring turning off some features in bios (pci buffer?) But it seemed to do pretty good at 50 with everything on. I applaud you being able to get 3-1-1-1 with 1 mb cache and the cyrix, the best I could do with stability on fast fsb was 512kb, and even for that quality vintage sram was necessary.
Are you using EDO or FPM ram? I remember this board responding very favorably speed wise to EDO (to the point that if you ran cache slower then 3-1-1-1 it would disable itself as memory was just as fast as 3-2-2-2 cache). I do recall the necessity to place the EDO ram in inner most slot for the auto detection to work properly.
I also remember the ISA bus not installing automatically under windows 98 on this board - having to manually install "isa plug and play bus" or something after a system install to get it to pick up plug and play sound cards properly - did you also run in to this problem? Just wondering if it's inherent to the board, or if it was just a side effect of me running a 60mhz fsb
Greetings 😀 Thank you very much for the response, I can see right away that I am among the experts 😉
- M918 is a great board for me, even though in its time it was the cheapest shit often with fake cache
- I couldn't set 60MHz FSB on this board. Do you have a jumper combination for 60MHz FSB somewhere? It would be a great benefit for AMD 5x86. But Cyrix, I think it's happy even with the stable 50MHz FSB 😁
- Don't even talk to me about the cache 😁 It was a lot of hours of searching for the right chips before I achieved stability. And I have to blow the chips gently with a fan. As the temperature rises above 40°C, they start to become unstable 😁 But the most important is the TAG chip. I probably only have 2 or 3 chips that can be used as TAG with Cyrix with a 3-1-1-1 setting
I can even do some tests with the best cache settings (2-1-1-1 0WS). But it is of course not stable. Quake then has 22.4fps (or even 22.6 if both read and RAM are set to "fastest") or e.g. 14.4fps with PCPlayer 640x480. I also attach photos of Speedsys (read and RAM set to "faster") and CacheCHK (RAM set to "fastest"), which is brutal, because the EDO RAM is then completely "cached"
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Cache 2-1-1-1 0WS - 22.4fps when I set Read for RAM to "faster" or even 22.6fps when I set Read to "fastest"
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Cache 2-1-1-1 0WS and read for RAM set to "faster"
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Cache 2-1-1-1 0WS and RAM set to "fastest"), which is brutal, because the EDO RAM is then completely "cached"
I agree that once the cache is set to 3-2-2-2 with EDO memory, then the EDO memory is faster than the cache 😁 EDO support is very good for me. But with such an extreme setting, only one module should be used for stability.
- And yes, I encountered a problem with ISA in Windows and I didn't solve it 😁 I suspected that the problem would be somewhere in poor PnP support. CT3670 works perfectly for me in DOS, but in Windows only as SB16, it doesn't recognize AWE32 😀 The reason will probably be exactly what you mention.