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Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Yet another post. After more screwing around, I think Quake and NFSSE think I don't have enough XMS. It's possible there's nothing wrong with my CPU at all. I'm confused, though, since I have 32MB RAM and ehhhhhhhhhh I dunno what I'm doing wrong anymore. EDIT: So, out of desperation, I downloaded …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Well, I believe I've ruled out the power supply. Got my cable today, everything's plugged in and working, NFSSE still won't load even the installer, Quake crashed nearly immediately. Just for fun, here's a picture of the page fault from Quake, in case someone knows how to decipher it. I think, …

Re: What game are you playing now?

Duke3d,Blood,ShadowWarrior. Somehow I get bored after a couple of levels, so I switch it up. Strange thing is that I never had that with Doom.Anyone else feel the same ? Doom's first episode is my jam. Knee Deep in the Dead, ahh, how I love you. I played it shareware pretty much endlessly as a kid. …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Yep, that will work. If you don't mind waiting a while, you can get them on eBay from China for $3.25 a piece though. https://www.ebay.com/itm/18AWG-20Pin-ATX-to-2X-6Pin-AT-PSU-Converter-Power-Cable-Cord-for-286-386-486-586/313021103999 There used to be a seller on eBay that sold the adapters that …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Yes, that's almost without a doubt the issue here. A P55 CPU without internal 3.3V connection, and thus floating BF0, in an older mobo jumpered for 1.5x, will run at 2x. It can be kind of verified by jumpering for 3x multiplier, the CPU should end up running at 2.5x. Yup, that was the issue. I've …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

What about an ATX PSU with an AT adapter? I don't really trust most AT PSUs anymore. This what I'd need? https://www.amazon.com/20-Pin-Power-Supply-Adapter-Cable/dp/B01EDGS0KI Yep, that will work. If you don't mind waiting a while, you can get them on eBay from China for $3.25 a piece though. …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Regarding testing: Try running a test program like GoldMemory or Memtest. Try with L2 cache disabled first to isolate the ram, and then with it on afterwards. Thatl root out any ram induced problems. Bad cache in particular can manifest as verious anomalies. I did passes with and without cache, RAM …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Welp, I tried a bunch of different configurations with the RAM, either it's all bad or none of it is. I downclocked the CPU to 200mhz, made absolutely no difference whatsoever. I'm going to swap it for a Pentium 90 I found with the motherboard I'm currently using, I'll try that and see if things …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Turns out that only kind of helped. Duke3D still locked up after awhile. I could still CTRL+ALT+DEL at least. I'm at my f***ing wits end. Once on boot it locked up randomly while loading the midi synth thing, upon reset most of my files were renamed garbage characters, gone again on reboot. I've …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

My computer hates my current AUTOEXEC.BAT and CONFIG.SYS. I went back to an older one from my old IDE hard drive and now things work. WHAT THE HELL. I will post pictures of the "bad" ones and the "good" ones shortly. EDIT: all that's missing from the config.sys in both is D:1 H:5 I marked the bad …

Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

I guess my lack of understanding is why the same exact thing is happening, except with a DIFFERENT mobo and a DIFFERENT CPU. The old motherboard/Pentium 120 were doing the same thing to me last night, so there has got to be a common denominator in here somewhere that I 'm just not seeing. Should I …

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