Obnoxious ringing noise with Yamaha YMF744 - what's causing this?

Posted on 2011-06-09, 18:59

by

by Ace

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't know what's with my Yamaha YMF744, but whenever I try to use it under Windows, I get an obnoxious ringing noise in the right audio channel that never goes away unless I completely mute the master volume control. However, under DOS, I never get this noise. Is this a problem with the sound …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-04, 19:58

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

I've got 6 different computers for all my MS-DOS and Windows 9x stuff, including one Pentium III(hybrid Windows 9x/MS-DOS), one AMD Athlon(Windows 9x), one 386SX(early MS-DOS stuff that doesn't work well on faster computers), one Pentium 1(MS-DOS), one Pentium II(MS-DOS, used exclusively to test my …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-04, 19:03

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

I set the MIDI port to 330, which is what I always use, but I got no General MIDI at all. Now, I haven't tested AWE synth using DIAGNOSE.EXE, but I could not get it working in X-Wing's SETMUSE program. It seems the MIDI data is being sent to the EMU8000, but I don't hear anything. Also, I've …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-04, 17:43

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

Okay, so I've tested your CTCM directory, and while I can get SoundBlaster 16 digital audio and CQM out of my SoundBlaster 32 and two SoundBlaster AWE64s, I can't get any General MIDI or AWE synth working. What's the problem? As for my SoundBlaster Live! issues, I figured it out. I have to overclock …

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Re: Opti 82C929A - DOS driver anyone please?

Posted on 2011-06-02, 18:51

by

by Ace

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The chips are all surface-mounted, so the only place you need flux while reflowing the solder with the heat gun is directly on the pins of the 82C929A, AD1845XP, DSP24S and DAP16S. Then blast the heat gun only on the top of the chip.

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Re: Opti 82C929A - DOS driver anyone please?

Posted on 2011-06-02, 15:27

by

by Ace

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If the PCB is warped, there's a good chance the solder has gotten loose on all surface-mounted chips. In that case, get a heat gun and reflow the solder on the 82C929A, AD1845XP, DSP24S and DAP16S. Be sure to use flux, otherwise the solder won't stick very well, and be sure to keep the heat gun …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-02, 15:16

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

I'll give it a go later today. Now for yet another problem, this time concerning PCI sound cards with SBLink connectors on them. I put together a homemade SBLink cable and I'm trying to get it to work on my Yamaha YMF744. However, I've got a big problem with SBLink on that card. I need to use the …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-02, 01:14

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

I can't do that with MS-DOS v7.10. I get errors from the program about running Windows 95 to do I'm not too sure what and CTCU says it can't run in a Windows 3.1/Windows 95 DOS box. WTF? I'm not trying to run the damn thing under Windows, I'm trying to run it under DOS! WTF???

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-02, 01:05

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

The floppy disk edition of X-Wing is the only one that really screws up on fast computers, but it doesn't screw up with the SoundBlaster Live! on all the computers I've used it on. The Collector's CD-ROM edition only screws up when using the AdLib sound option for music, which I'm not using. I'm …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-01, 23:34

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

Right now, I'm using the Collector's CD-ROM edition of Star Wars X-Wing and The Ultimate Doom, but will later have the floppy disk edition of X-Wing, the Collector's CD-ROM edition of Star Wars TIE Fighter, Wolfenstein 3D, Red Baron and Aces of the Pacific. I was able to get the SoundBlaster Live! …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-01, 21:53

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

My CTSYN.INI looks like this: [ctsyn.drv] OPLPort=388 MPUPort=330 SBPort=220 SBIRQ=7 SBDMALO=1 SBDMAHI=5 SBEnable=true JOYEnable=true Waveset=C:\SNDDRV\SBLIVE\default.ecw PCIPort=6000 PCIIRQ=9 JOYPort=200 [SBEMIXER] MasterVolL=250 MasterVolR=250 WaveVolL=250 WaveVolR=250 CDVolL=250 CDVolR=250 …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-01, 19:02

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

Okay guys, I need some help here. I just installed the DOS drivers for my SoundBlaster Live! model CT4830 but I'm having problems. The SoundBlaster 16 support works fine, but the FM Synthesis is abnormally slow and causes all DOS games to stutter pretty badly. What's causing this? General MIDI is …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-06-01, 00:34

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

Great... things have just gone downhill. I installed MS-DOS v7.10, but I can't boot it at all. To make matters worse, I can't even start up the setup program for MS-DOS v6.22 from the floppy drive anymore! WTF?! What the hell just happened?! EDIT: Seems like the hard drive might have something to do …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-05-31, 22:45

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

Would there be some way I can underclock the Pentium II to below 200MHz? From what I can tell, the Pentium II I have is multiplier unlocked, but the BIOS settings only lets the Pentium II underclock down to 200MHz. This is still too fast for me to test sound cards with the Collector's CD-ROM edition …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-05-31, 21:57

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

This Pentium II computer is mainly meant as a test box so I can test various sound cards on all the MS-DOS games I have and get some clips from those sound cards for my "The Many Sounds of:" series of videos on YouTube, so AGP graphics cards are not a priority for me. Besides, the picture quality …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-05-31, 16:02

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

I think I need some different 1200uF capacitors than what I have for my Shuttle AV61V40 because they're about triple the width of the original capacitors on the motherboard. Most of the capacitors I found were considerably bigger than the ones originally on the motherboard, so some had to be mounted …

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Re: Pentium II and 486/AMD K-6 builds in progress

Posted on 2011-05-31, 04:09

by

by Ace

in Marvin \ System Specs

in Marvin \ System Specs

*insert long RAM talk here* So after getting this thread derailed by RAM talk, it's time I bring it back on topic. I've almost finished recapping my Shuttle AV61V40 motherboard, although I just got a Soyo SY-6BA+ motherboard courtesy of my mother(she's awesome - if ever I need old computer …

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Re: Anyone interested in recordings of different sound cards? I've got some here for you.

Posted on 2011-05-28, 19:38

by

by Ace

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found some DOS drivers for the EV1935, so I'll be using those to test the sound card. Now for my thoughts on the EV1935. While I had no idea about what "MachOne" was supposed to be, I did remember the name "MediaChips," which was a name used by OPTi on some of their PCI sound card chipsets. Well, …

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Re: Anyone interested in recordings of different sound cards? I've got some here for you.

Posted on 2011-05-28, 00:55

by

by Ace

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

More preliminary tests are coming in for two new sound cards I acquired, although I only got one working: Yamaha YMF744(PCI): After having gone through FOUR defective Yamaha YMF7xx sound cards, if this one would have been defective as well, I would have been screaming profanities for 15 minutes …

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Re: Star Wars X-Wing (floppy version) Sound Blaster driver fix

Posted on 2011-05-14, 04:35

by

by Ace

in DOS

in DOS

Here's something worth mentioning about the modified Adlib_w.ims file: the SoundBlaster Live! hates it. It works fine for the most part, but in-game, the music tends to slow down a lot and sometimes causes the game to stutter pretty badly. The SoundBlaster Live! works better with an unmodified Adlib …

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