Re: Screamer 2 - low FPS on Pentium 200MMX

Posted on 2019-03-13, 19:25

by

by rasz_pl

in Marvin \ Software

in Marvin \ Software

ALI Aladdin V revision D and E With 512 kB Level 2 Cache, 128 MB are cacheable With 1024 kB Level 2 Cache, 128 MB are cacheable ALI Aladdin V revision G With 512 kB Level 2 Cache, 512 MB are cacheable With 1024 kB Level 2 Cache, 4096 MB are cacheable + try univbe for the gf2mx from memory screamer …

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Re: Best way to clean old boards ?

Posted on 2019-03-13, 19:19

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

looks like pentium4 and cobwebs - clean it with fire

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Re: Pre-VESA Proprietary 32-bit Local Buses?

Posted on 2019-03-13, 03:14

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

sweet, Gigabyte GA-486US rev3 has June 1992 datecodes. I also found May 1992 "Swan 486/33 DB, The blinding speed of Swan Direct Bus" with S3 86c911. Apparently CPU and graphic chip were on a single, separate PCB daughterboard. https://books.google.pl/books?id=jcrsPJb76HAC&pg=PT197&lpg=PT197&dq=swan+ …

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Re: P4, Voodoo 3 3000 + m3D (PowerVR PCX2) system

Posted on 2019-03-13, 00:54

by

by rasz_pl

in Marvin \ System Specs

in Marvin \ System Specs

afaik m3d port of Tomb Raider is the best one of all the other accelerated ones (Glide/GLRage) because its not capped at 30fps I think it is capped at 30fps though, because the framerate counter sometimes says 60fps, but the game still looks like it’s running at 30fps. sadly the only way to check …

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Re: Best "modern" GFX card and driver for K6 system

Posted on 2019-03-12, 23:19

by

by rasz_pl

in Marvin \ Video

in Marvin \ Video

"OpenGL-Performance: Quake 3 Arena" score was "K6-3 450Mhz @ 49.8fps, Celeron 400 (Mendocino) @ 52.8fps" Radeon 8500 is the best you can try, still good luck with drivers, agp on ss7, and crashes. Maybe there is something wrong with the driver? With the Radeon 7000 I am only getting like 10 fps in …

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Re: P4, Voodoo 3 3000 + m3D (PowerVR PCX2) system

Posted on 2019-03-12, 18:19

by

by rasz_pl

in Marvin \ System Specs

in Marvin \ System Specs

The m3D is definitely the bottleneck. I'd say it performs about average compared to what I've heard about it. Some games have a bit of slowdown, like Tomb Raider for example, but not too bad. afaik m3d port of Tomb Raider is the best one of all the other accelerated ones (Glide/GLRage) because its …

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Re: Nostalgic feeling but reaction is otherwise

Posted on 2019-03-12, 17:40

by

by rasz_pl

in Milliways

in Milliways

dont forget the 15KHz CRT squeek But as cyclone3d mention it, it might be the 'hey, did you know Im a vegan' thing.

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Re: Best "modern" GFX card and driver for K6 system

Posted on 2019-03-12, 16:18

by

by rasz_pl

in Marvin \ Video

in Marvin \ Video

Sounds more like you are bottlenecking on CPU... K6-2 was targeting extreme budget. 1998 wasnt a good year for AMD. AMD K6-2 400 OC to 506MHz is probably around Celeron 333MHz (almost $100 cheaper in 1998) without 3dnow patches, and still slower than 300@450 with them https://www.vogons.org/ …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2019-03-11, 19:00

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wonder if Microsoft changed the driver in version 9 and newer to avoid problems like this with buggy bios. that would be my guess too, MS has a strong tradition of silently fixing/working around oem bugs, one of the more famous ones being Windows95 simcity compatibility patch https://www.osnews. …

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Re: Fixing a MSI 5128

Posted on 2019-03-11, 18:16

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

When I start it up, first the three LEDs of the keyboard stay on for a second, then they turn off. So far, so good. But at the end of the RAM count, they all blink rapidly, and then all turn off ... and of course the keyboard doesn't work at all. BIOS is able to at least initialize keyboard. KBC is …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2019-03-10, 18:54

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

can you give an example link? how would you even send 3 bytes of information in 1 byte? PS2 mouse communication is standardized, afaik there is no 1 byte mode. https://www.win.tue.nl/~aeb/linux/kbd/scancodes-13.html I just noticed this issue has been mentioned on the recent Dosbox commits https:// …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2019-03-10, 16:02

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

retardware wrote: (For this reason some people hacked their mouse/driver to work with 19200 instead of 1200bps which is the default rate iirc) you might be thinking serial, PS2 is ~12Kbit/s

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Re: Project: First Person Shooter History

Posted on 2019-03-10, 15:20

by

by rasz_pl

in Marvin \ System Specs

in Marvin \ System Specs

I've had to give up on any "crosshair" based games pretty much entirely. When I say crosshair based, I mean any games where your field of vision is locked to that of your characters field of vision so to speak. I.e. moving the mouse = moving your screen around. It just gives me major issues with …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2019-03-10, 15:06

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Found out Microsoft Mouse version 9 and newer driver in DOS uses 1-byte packet sizes. It fixes the slowdown problem. Ctmouse and the other drivers I tested use the standard 3 byte mouse data packets and cause heavy CPU usage and slowdown when moving the mouse on this board in DOS. what do you mean? …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2019-03-09, 21:04

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Found out Microsoft Mouse version 9 and newer driver in DOS uses 1-byte packet sizes. It fixes the slowdown problem. Ctmouse and the other drivers I tested use the standard 3 byte mouse data packets and cause heavy CPU usage and slowdown when moving the mouse on this board in DOS. what do you mean? …

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Re: 486 Computer RAM - 30 pin vs 72 pin

Posted on 2019-03-09, 20:34

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Those sure are 2MB per simm. Hmm what is a pld doing on those modules? and how are they parity without additional parity chip? is this some sort of faux parity emulated by the pld? Wonder what they were meant to work in, most likely not a standard PC.

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Re: Need advice: Is this 486 mobo good for a crazy freeclocker project?

Posted on 2019-03-09, 17:18

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The problem with these clock chips is their granularity. To "tune" finely to about 4.77 MHz PC speed there would be needed either a clock chip with a resolution of 100kHz or smaller. What I am thinking of is an "analog" controller like a potentiometer. (Does not need to be analog, can be actually …

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Re: Fast Processor but Slow System (Windows 98SE)

Posted on 2019-03-09, 15:48

by

by rasz_pl

in Marvin \ Software

in Marvin \ Software

Graphics: Modded Voodoo 5 5500 (Voodoo 5 6000 VSA-100 chips at 128MB V-RAM) yeah ... Also, you must install via 4in1 drivers for proper AGP support. the older V4.35 or so will probably work well. Do not try to force 4x AGP on these chips, they usually don't like it. Voodoo treats AGP like fast PCI, …

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Re: SSD on Compaq SLT/286

Posted on 2019-03-09, 15:27

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dead computer after plugging cf2ide usually means it was plugged backwards, now I would advise _against_ checking this hypothesis by experimentation rather look at the pcb and identify where pin 1 is, or even better check pinouts with multimeter (ground pins easy to find)

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Re: Duke Nukem 3D - what's the resolution of the original textures?

Posted on 2019-03-09, 15:17

by

by rasz_pl

in Marvin \ Software

in Marvin \ Software

Also it appears to be displaying everything in text-mode as 720x400, which is odd because I thought that the raw resolution was 320x200. 80×25 with 9×16 font is 720×400 but everything below 350 is line doubled in VGA to maintain 31KHz, so 320x200 will also identify as 720x400 But it doesn't look …

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