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Re: Dream SAM9733 and SAM9407 based MIDI devices distortion fix

Posted on 2020-09-25, 01:08

in Marvin \ Sound

in Marvin \ Sound

This definitely reduces the volume on my Yucatan FX. I'm not sure if I had clipping issues though since I run the output from the CHiLL to an external mixer where I can turn it down. What does changing the music/midi volume in a game do? It doesn't seem to override this master setting (which is good …

Re: New Waveblaster card : Reptile Paradise - Yucatan FX

Posted on 2020-09-16, 03:03

in Marvin \ Sound

in Marvin \ Sound

Finally got around to building the CHiLL. This Yucatan FX sounds awesome. Has a lot of punch. The sub under my desk is bumping!

Re: GODS Keyboard Issue

Posted on 2020-09-12, 01:55

in Marvin \ Software

in Marvin \ Software

Okay, seems to be my Aten KVM causing the issue. I used a PS/2 keyboard direct and had no issue. This is odd, I run a ton of DOS games and this is the only one I've had an issue with. It must have some odd input code or something.

Re: GODS Keyboard Issue

Posted on 2020-09-12, 01:44

in Marvin \ Software

in Marvin \ Software

Tried slowing down the typematic rate in the bios and also using the "turbokey m2". It might delay the issue, but it still happens. I have the game configured to keyboard.

GODS Keyboard Issue

Posted on 2020-09-08, 01:30

in Marvin \ Software

in Marvin \ Software

I'm having an issue with the keyboard on the game GODS. The game works fine running straight from Windows 98 SE dos prompt. However, in DOS 6.22 it works as long as you don't hold a key. When a key is held for a couple of seconds, it gets "stuck" repeating that key, and the keyboard stops responding …

Re: New Waveblaster card : Reptile Paradise - Yucatan FX

Posted on 2020-08-30, 19:40

in Marvin \ Sound

in Marvin \ Sound

Just bought one on serdashop! This will work with the CHiLL external waveblaster interface right? Want to leave the X2 on my YMF-719 and I'm not sure this would fit there anyway.

Re: Diamond Viper V330 PCI 8MB (Riva 128ZX) Tantalum Cap Replacement

Posted on 2020-08-10, 22:28

in Marvin \ Video

in Marvin \ Video

Replaced the caps, perfect fit-wise. And even though the polymer are much lower ESR, it didn't seem to effect anything. Output is still great.

Re: Diamond Viper V330 PCI 8MB (Riva 128ZX) Tantalum Cap Replacement

Posted on 2020-08-07, 14:22

in Marvin \ Video

in Marvin \ Video

Yea, says 8MB in the bios message at post as well as DirectX config in Windows 95. Datasheet for the memory chips show they are 2MB SGRAM. https://pdf1.alldatasheet.com/datasheet-pdf/view/60396/ETRON/EM636327Q-10.html I went ahead and ordered the aluminum poly caps, as well as a new e-cap to replace …

Diamond Viper V330 PCI 8MB (Riva 128ZX) Tantalum Cap Replacement

Posted on 2020-08-05, 23:05

in Marvin \ Video

in Marvin \ Video

Okay, so I've got a Pentium 233 MMX Socket 7 build (parts from 97-98). I've replaced every single electrolytic capacitor at this point on the motherboard and soundcard (some leaking, some not). I have not yet touched my Riva 128ZX because the output is perfect and the tantalum caps seem fine …

Re: where to find AT power connector? I need to convert ATX to AT

Posted on 2020-06-30, 18:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I recommend buying a converter that also supplies the -5V that ATX does not supply. I believe it was used by certain ISA cards. Also, one with a dummy load on the 3.3V rail since AT doesn't use it. Leaving it floating could cause stability issues in the ATX power supply. https://www.vogons.org/ …

DOS Screensaver TSR that launches program

Posted on 2019-09-20, 16:20

in Marvin \ Software

in Marvin \ Software

Does a TSR exist that monitors keyboard and mouse activity and then can launch a program after a certain idle period has elapsed? I'd like to have acidwarp.exe launch automatically. I know there are TSR screensavers out there, but none appear able to launch other programs.

Re: LCD monitor VGA compatibility database

Posted on 2019-08-11, 22:06

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Monitor: Samsung 204B Native res: 1600x1200 Scaling: Nearest neighbour Aspect rto: 4:3 Machine: Pentium 233mhz MMX, MS-DOS 6.22 Video card: STB Virge GX 385 4MB UniVBE: S3VBE318 Tested by: ahyeadude OVERALL COMPATIBILITY RATING: 13/14 (excellent) Application P F CP Notes …

Re: LCD monitor VGA compatibility database

Posted on 2019-08-06, 02:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Monitor: AGN SC-19AH Native res: 1280x1024 Scaling: Interpolation (so much smear) Aspect rto: 5:4 Machine: Pentium 233mhz MMX, MS-DOS 6.22 Video card: STB Virge GX 385 4MB UniVBE: S3VBE318 Tested by: ahyeadude OVERALL COMPATIBILITY RATING: 11/14 Application P F CP Notes …

Re: LCD monitor VGA compatibility database

Posted on 2019-08-06, 01:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Monitor: Samsung 930B Native res: 1280x1024 Scaling: Nearest neighbour Aspect rto: 5:4 Machine: Pentium 233mhz MMX, MS-DOS 6.22 Video card: STB Virge GX 385 4MB UniVBE: S3VBE318 Tested by: ahyeadude OVERALL COMPATIBILITY RATING: 11/14 (good) Application P F CP Notes …

Re: LCD monitor VGA compatibility database

Posted on 2019-08-06, 01:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Monitor: EIZO FlexScan S2133 Native res: 1600x1200 Scaling: Nearest neighbour/Linear interpolation (selectable) Aspect rto: 4:3 Machine: Pentium 233mhz MMX, MS-DOS 6.22 Video card: STB Virge GX 385 4MB UniVBE: S3VBE318 Tested by: ahyeadude OVERALL COMPATIBILITY RATING: 10/14 (bad) Application P F CP …

Re: S3 Virge GX 385 Video Noise Recap?

Posted on 2019-06-06, 01:56

in Marvin \ Video

in Marvin \ Video

Taking a look at the design it has 3 internal power planes, one ground, one 3.3V, and one 5V. They seem to just strategically place caps at points around the board. However, this board had quite a few unpopulated capacitors. I think this was probably a cost savings measure and also that the board …

Re: S3 Virge GX 385 Video Noise Recap?

Posted on 2019-06-01, 20:58

in Marvin \ Video

in Marvin \ Video

Replaced all the electrolytics with new higher quality and it has improved the noise probably 70% or so. Interesting aside, they had all drifted higher, some 50%. I've read that is typical of using 16V caps on lower voltages. I really think it is on the power filtering side. I'm going to try to …

Re: S3 Virge GX 385 Video Noise Recap?

Posted on 2019-05-31, 03:09

in Marvin \ Video

in Marvin \ Video

Okay, so tried the following... - Replace PSU with another working AT PSU and also a new modern ATX PSU. Same issue. - Replace linear regulator with new LM1084IT-3.3. Same issue. Will recap the board tomorrow.

Re: 486 Dallas battery coin adapter mod ?

Posted on 2019-05-24, 18:49

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You could just remove the old RTC, add a socket, and buy a new one. RTC... https://www.mouser.com/ProductDetail/700-DS12887 https://www.mouser.com/datasheet/2/256/DS1288 … 87A-1512672.pdf Socket... https://www.mouser.com/ProductDetail/517-4824-6000-CP

Re: S3 Virge GX 385 Video Noise Recap?

Posted on 2019-05-24, 02:47

in Marvin \ Video

in Marvin \ Video

Going to replace the electrolytics and the linear regulator as suggested. Also going to test another PSU just to be sure. I'll report back.

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