Re: Cyrix 5x86 Register Enhancements Revealed

Posted on 2020-09-04, 15:41

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I may be lucky then. I got it up and running at 120Mhz only needed to decrease the RAM timing to Fast (instead of Fastest). What are you suggestions feipoa on the longevity of this setup? I believe the chip is running at 3.3/3.45 or at the most 3.6V (I don't know exactly because of the missing …

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Re: Cyrix 5x86 Register Enhancements Revealed

Posted on 2020-09-04, 12:33

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK I solved one problem. It seems the CMOS battery acted up in some way because removing it solved my RTC issue. Now I have a loosing CMOS settings when turned off issue though. :) Whatever. The more important part is a working timer because Speedsys always hung at the Year2000 bug test while the …

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Re: Cyrix 5x86 Register Enhancements Revealed

Posted on 2020-09-04, 08:07

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for your quick answer. You are always of great help and I especially appreciate the promtness of your responses. I will try the Peter Moss program too. (Once I get the motherboard working again because now the RTC stopped counting time. CMOS data is stored but it doesn't tick at all. I …

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Re: Cyrix 5x86 Register Enhancements Revealed

Posted on 2020-09-03, 17:16

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I finally managed to lay my hands on a Cyrix 5x86 derivative or so i suppose. The chip in question is an ST5x86-100. First of all would you please confirm that it really is a Cyrix 5x86 from a different supplier (SGS-Thomson)? The other problem is with the motherboard it came in. It is currently …

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Re: Retro Rig Photo Thread

Posted on 2019-08-19, 03:56

by

by Montgomery

in Marvin \ System Specs

in Marvin \ System Specs

That speaker system was also sold together with Packard Bell Platinum pc's, under the name of Diamond Promedia. It is an excellent 2.1 set, not just for gaming and movies, but also for music. Yes I've found some old ads of them searching the web for MidiLand 4030 info. How happy I would have been …

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Re: Retro Rig Photo Thread

Posted on 2019-08-19, 03:46

by

by Montgomery

in Marvin \ System Specs

in Marvin \ System Specs

Wow, it's great to see that case so pure white. I have a similar one that is yellowed. What do you use for retr0brighting? I use a very simplified method of whitening. After disassembly and cleaning I paint the plastic surfaces with 12% hydrogen peroxide gel (something like Salon Care 40 Volume …

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Re: Retro Rig Photo Thread

Posted on 2019-08-16, 17:06

by

by Montgomery

in Marvin \ System Specs

in Marvin \ System Specs

I have built quite a few a retro PCs by now, but I usually don't make them into complete systems. Most of the time I assemble the box and test it with generic peripherals. Once in a while however I chance upon some interesting pieces which cry out for a complete retro setup. It has happened with the …

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Re: Is anyone aware of the Casio SW-10 Softsynth for Win9x?

Posted on 2018-08-13, 16:44

by

by Montgomery

in Marvin \ Sound

in Marvin \ Sound

To give some color to this thread here is my desktop: 01.jpg The system is running Yamaha S-YXG100 Plus (with 4MB samples), Roland VSC-88H3 and Casio SW-10 along with the hardware Yamaha YMF715 (integrated to the Intel Atlanta 440LX motherboard): 02.jpg Even the YMF715 has its own softsynth part so …

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Re: Is anyone aware of the Casio SW-10 Softsynth for Win9x?

Posted on 2018-08-13, 12:17

by

by Montgomery

in Marvin \ Sound

in Marvin \ Sound

OK guys, I was impatient so I solved the problem myself. :) I had to fumble around the Windows, System and Inf directories for a couple of turns (installs, uninstalls, reboots) but in the end managed to find all the necessary files for the installation of the standalone softsynth. (Thank you RichB93 …

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Re: Is anyone aware of the Casio SW-10 Softsynth for Win9x?

Posted on 2018-08-13, 11:15

by

by Montgomery

in Marvin \ Sound

in Marvin \ Sound

I stumbled upon this thread searching for softsynth options for a Win95 PC build. While I'm very satisfied with the Yamaha S-YXG50 and the Roland VSC-88H I also want to give a try to the Casio SW-10. I already installed it - alongside with LANA - on my retro machine and it sounds interesting. It …

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Re: Graphic card memory speeds

Posted on 2018-07-29, 17:44

by

by Montgomery

in Marvin \ Video

in Marvin \ Video

I'm sorry for being a bit off topic but I have some memory related problems with my 3Dfx Voodoo Rush (Macronix) card. It is the one with the framebuffer memory expendable by 4 sockets in the upper left corner, which is now populated with similar chips to the ones at the board itself (256k x 16, 35ns …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-14, 11:49

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for the updated BIOS. I think I will stay at 133Mhz for the sake of stability and my Voodoo card. I found the 1.72F the most stable version for the board. The 4.00A and 4.01E were unsuccessful in coordinating the two PCI boards and the AWE64 PnP.

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-13, 20:07

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, my memory timigs were set to 2 with cache and DRAM too and the ISA bus at fix 7.xx Mhz. With old hardware one can never be certain of the cause of an issue. Yesterday I turned the PC off in good working order and today it won't boot. I swapped PSU, CPU, removed every card by the time it occured …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-12, 19:56

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bummer! ... Sorry but I just realized some hardware defect which is responsible for the innumerable problems I was trying to solve for some time. Today I started to have issues with the 4DPS based 486. The AWE64 would play MIDI and MOD, but with MP3 it always froze the system. First I thought it …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-12, 11:14

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have run the above posted Am486DX2 at 2x66 and 2x83 MHz. I probably still have the benchmark information somewhere if you really want it see it. The CPU pictured above was produced mid-2002. I suspect it is an Am5x86, but with a 2x and 3x option instead of a 3x and 4x option. I absolutely believe …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-11, 20:18

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I suspected that the 5x86 doesn"t have a 2x multiplier. It's unfortunate since these are the fastest chips of the era. I doubt that anyone ever was able to run a DX2/66 at 2x50 or 2x66Mhz, but please prove me wrong! :) I had the opportunity to tinker with three 486 systems in the last few days. I …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-08, 18:58

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was lucky with the floppy controller. It was only a BIOS issue. After an exceptionally serious freeze - while playing with memory timings and FSBs - the BIOS self-reset itself and disabled the FDD. After switching it back on everything works fine. Yes I know the divider weakens the video …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-07, 21:43

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for the quick reply. Unfortunately my CPU (an ADW variant) seems not to be beefy enough for faster than 160Mhz operation. I only managed 180Mhz for a couple of seconds, but the PC won't even POST further than the first screen. Of course it might be a motherboard issue, since mine seems to …

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Re: Zida 4DPS (Tomatoboard) Socket 4 SiS PS/2 mouse not working

Posted on 2018-06-06, 10:23

by

by Montgomery

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's a neat little board, with official 586 support, 3.3 / 3.6 and 5V voltages and FSB up to 66MHz (unofficial). Looking at my sample (PCB Ver 2.11) Hi! I know it's an old thread and not exactly related to my question, however since I cannot find some crucial info about the ZIDA 4DPS let me ask it …

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