Re: Runtime error R6003 integer divide by 0 - real Fixes for fast CPUs, no slowdown workaround..

Posted on 2020-06-20, 18:13

by

by auron

in Marvin \ Software

in Marvin \ Software

so, did anyone ever get chasm to work on actual hardware? the supposed 0x14030 f7 f3 -> 90 90 hexedit fix on ps10.exe does not change anything and patchcrt refuses to patch either chasm.exe or ps10.exe.

---

Re: Duke Nukem 3D 1.3d locks up with ATI 3D Rage Pro Turbo PCI card in DOS

Posted on 2020-06-20, 02:44

by

by auron

in Marvin \ Software

in Marvin \ Software

i've run it on pentium 133 in 640x480 and consider it quite playable, it's one of those few games where the minimal spec (dx2/66) doesn't actually seem like pulled from thin air. i just find it interesting how I/O bottlenecked it is, smartdrive is an absolute must in DOS and win95's 32-bit disk …

---

Re: Duke Nukem 3D 1.3d locks up with ATI 3D Rage Pro Turbo PCI card in DOS

Posted on 2020-06-20, 02:26

by

by auron

in Marvin \ Software

in Marvin \ Software

At 320x200 or even 640x480, that Pentium 120 should be plenty enough, if memory serves . plenty to not pose a bottleneck? easy to prove that wrong with a quick look at dukebencTim.txt, on a matrox millennium going from p120 to p166 nets an extra 20 fps in 320x200, and an extra 6.5 fps in 640x480. …

---

Re: Duke Nukem 3D 1.3d locks up with ATI 3D Rage Pro Turbo PCI card in DOS

Posted on 2020-06-20, 02:06

by

by auron

in Marvin \ Software

in Marvin \ Software

just to clarify, if you've run duke3d on your diamond card in 640x480 you've already run it in VESA, just banked VESA 1.2 instead of linear 2.0 (which you can get by using the aforementioned S3VBE20 to gain a couple of frames). and yes, of course a p120 will bottleneck, it's a DOS software renderer …

---

Re: Duke Nukem 3D 1.3d locks up with ATI 3D Rage Pro Turbo PCI card in DOS

Posted on 2020-06-20, 01:42

by

by auron

in Marvin \ Software

in Marvin \ Software

if the card's BIOS has an iffy VESA 2.0 implementation, at least duke3d might work by using NOLFB, since that game has fallback code for using banked VESA. but again, you seem to be quite overvaluing video card importance here and really whiplash is known to run very badly on period systems.

---

Re: Duke Nukem 3D 1.3d locks up with ATI 3D Rage Pro Turbo PCI card in DOS

Posted on 2020-06-20, 01:31

by

by auron

in Marvin \ Software

in Marvin \ Software

just use S3VBE20 on the trio and be done with it, the CPU will be the bottleneck anyway. also ati cards aren't that highly regarded for DOS and anecdotally i've also had lockups in duke3d on the original radeon, but never cared to look more into those.

---

PS/2 optical mouse compatibility issues on older boards? (Logitech M-SBF96)

Posted on 2020-06-20, 01:22

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i'm sure some here are familiar with that model, i have a couple of variants of different weights bought as NOS for use on old systems, but all have the same issue of seemingly random movement "twitches" that last roughly a second and seem to appear every 5 to 10 minutes, on average. the mice are …

---

Re: Chaintech 6LTM-L (6LTM M102) mainboard not starting

Posted on 2020-06-20, 01:02

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

not that it will help much, but coincidentally have a dead 6LTM board as well. the difference to yours is that mine does have the chipset heatsink and also has some trace damage on the back that i only noticed later. originally the board would just do nothing at all, but after patching said damage …

---

Re: Sound Canvas - Little things - Doom 1 title screen music on SC-88, note cutoff on SC-55mkii/CM-500

Posted on 2020-06-13, 17:20

by

by auron

in Marvin \ Sound

in Marvin \ Sound

the first thing i'd put down to differences in instrument maps, and the SC-55 map on the SC-88 does not match an actual SC-55 100% either, plus the synth engines are different. for a similiar example check doom2 map01 where you should notice some of the drum sounds sticking longer on the SC-88, …

---

Re: Pentium MMX 450MHz

Posted on 2020-06-05, 20:29

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

look at the speedsys shots OP posted. though, since he did mention using the same settings, it could have also been a misdetection by that tool?

---

Re: Pentium MMX 450MHz

Posted on 2020-06-05, 17:45

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What am I missing? With L2 enabled, K6-2 and Tillamook perform virtually identically (76 vs 77 fps), while the K6-3 sails past both at 83 fps. the AMD chips ran at 112mhz FSB here versus 100mhz for the tillamook. still surprised at the results though, in my tests the original K6 always showed quite …

---

Re: astec 110W PSU limits?

Posted on 2020-06-05, 17:25

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

it does seem like one of the few PC PSU brands that did use japanese caps pretty consistently in the 90s, which can't even be said for seasonic. i do however have another 200w astec unit from 2000 that does partially have jamicon in it, so they started skimping a bit on caps as well, at least on …

---

Re: Broken Heretic 2 co-op mode?

Posted on 2020-06-05, 16:20

by

by auron

in Marvin \ Software

in Marvin \ Software

unofficial patches, source ports etc. are pretty much always built with newer systems in mind and regressions of some original features aren't surprising. not something that PCGW concerns itself with, though.

---

astec 110W PSU limits?

Posted on 2020-06-05, 15:38

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i have this '98 ATX astec power supply, its very compact dimensions make it convenient to use outside of a case and it looks like a decently built unit with all chemicon/nichicon caps. its total output is lower than usual however, 110w. the specs are +12V 3.5A, +5V 10A, +3.3V 4A, -12V 0.8A, +5VSB 0. …

---

Re: Grand Theft Auto 1997 don't run in 3DFX mode in DOS

Posted on 2020-05-31, 22:59

by

by auron

in Marvin \ Software

in Marvin \ Software

yeah, try 66mhz bus speed. if that doesn't do it you'd have to get another cpu though as the multiplier is locked.

---

Re: Audigy 2ZS Prevents Post

Posted on 2020-05-31, 22:11

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

worth a shot replacing the three (or was it four?) small caps near the regulators at the pci connector, as per that one youtube video on the topic. i once did this on a 2zs and put an esr meter to these caps, they were indeed bad. clearly a design flaw by creative putting caps in there not fit for …

---

Re: Grand Theft Auto 1997 don't run in 3DFX mode in DOS

Posted on 2020-05-31, 21:57

by

by auron

in Marvin \ Software

in Marvin \ Software

try booting to DOS with nothing loaded, and run it there. there's also possible issues with fast CPUs here, iirc.

---

pre-dxdiag directx identification tools?

Posted on 2020-05-31, 15:29

by

by auron

in Marvin \ Software

in Marvin \ Software

if i'm not mistaken dxdiag was introduced with directx 7, but i recall once seeing some sort of other menu on an older version that would list all the files, without having to go the windows folder and check them manually. i don't recall whether this came with some game or not, does anyone remember …

---

Re: Batman's Revenge socket 4 motherboard - need manual

Posted on 2020-05-31, 15:24

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

the only real issue i had with my batman's revenge was a bricked BIOS, because apparently inserting a SCSI adapter will do that when the flash write protect jumper is off, which it is by default. was a very easy fix with intel's recovery floppy though. also the RTC needs to be sorted or else you'll …

---

Re: Buying a Pentium 133? Am I crazy?

Posted on 2020-05-30, 00:58

by

by auron

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

there's definitely a number of speed sensitive games that run at an intended speed on ~p133 while running too fast on pentium ii, 320x200 descent being a well-known example. with lesser known games these issues seem to be even more prevalent, on average. there's also issues like joystick/sound card …

---