Re: DOSBox ECE (for Windows & Linux)

Posted on 2020-02-12, 17:45

by

by AvalonH

in DOSBox Development

in DOSBox Development

What sample rate do others use for the following settings in the config file : dosbox mixer= mt32.rate= fluid.samplerate= oplrate= gusrate= pcrate= tandyrate= At the moment I have all the above set at 49716. If I set the correct rates to stop any sample rate conversion, mt32.rate=32000 I get muffled …

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Re: Disk cache drops performance massively

Posted on 2020-02-03, 11:05

by

by AvalonH

in Marvin \ Software

in Marvin \ Software

Speedsys 4.78 is not accurate, this promise controller shows 1.2GB/s transfer speed in it's disk benchmark. maybe that is the checking speed? that is not a real world value i believe why can't i edit my old post to add this there? It's not the cache speed, that is the figure it gives for the …

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Re: Disk cache drops performance massively

Posted on 2020-02-01, 11:43

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by AvalonH

in Marvin \ Software

in Marvin \ Software

Most IDE controllers I have tried over the years don't enable DMA from bios extension in realmode DOS, which makes a big difference. They might show on screen DMA enabled but it is not under DOS. Promise s150 tx2 is one exception. I tested a 256GB SSD connected to it to rule out any speed …

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Re: Best PCI card for a 486

Posted on 2020-01-01, 18:50

by

by AvalonH

in Marvin \ Video

in Marvin \ Video

Radeon 9200 PCI 128MB and Nvidia NVS 280 PCI (circa 2005) both work in my Asus AP4 486. Don't have any problems with vga compatibility or vesa games using them. Most don't agree with this but I would say use the most modern card that works because image quality will be vastly better. As a quick test …

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Re: Video bios(vBIOS) rom size research project for pure DOS, because there is smaller better.. Add our info.

Posted on 2019-12-28, 00:06

by

by AvalonH

in Marvin \ Video

in Marvin \ Video

Intel GMA x4500 (eaglelake bios date 12/1/2008) VBE v3.0 Vbsize 49KB NSSI 49KB

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Re: Old+Modern videocards pure DOS benchmarking- which one is fastest?, need your numbers + analysis, 320x200 to 1600x12

Posted on 2019-12-27, 23:51

by

by AvalonH

in Marvin \ Video

in Marvin \ Video

I started playing Quake again but wanted to try it out with the on-board Intel graphics chip X4500 (on a gigabyte G41M-ES2l motherboard). Using a Pentium E5400 @3GHZ. (300mhz FSB x10 multiplier), 4GB DDR2 (memory speed is fsb x2 - 600mhz). In the Bios the x4500 has 64MB RAM. In DOS this is …

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Re: Video bios(vBIOS) rom size research project for pure DOS, because there is smaller better.. Add our info.

Posted on 2019-12-26, 15:01

by

by AvalonH

in Marvin \ Video

in Marvin \ Video

VTX (Visiontek) ATI 4770 512MB PCI-E (RV740) (Walden B74302 Board) VBE 3.0 BIOS date May 1st 2009. ATOMBIOS BK-ATI VER:011.022.003.000.033000 B3B74302.106 Bios size reported in VBSIZE utility from FalcoSoft 63k Bios size reported in NSSI 63k

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Re: Delusional performance of a 486 DX33

Posted on 2019-12-17, 20:32

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Quake responsive and playable at 4fps on a 486DX-33? At what resolution are you playing Duke Nukem 3D? Anything above 320x240 will be stuttering on all low to mid range 486 PC's. Minimum requirements for Duke Nukem 3D is a 486DX2-66. Dont expect stellar performance on a 486DX-33. It's perfectly …

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Re: Motherboard for socket 5 build

Posted on 2019-11-27, 15:55

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P54TP4 is one of the most stable boards I have used, ever. The one I had came with Pipeline Burst Cache. From 1995 to 1998 I ran it with a P75, later overclocked to 100/120/133 with undervolted 5v fan. Still use it to this day for Dos. Very stable overclocking board.

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Re: DOS 6 22 vs DOS 7.1

Posted on 2019-11-26, 13:17

by

by AvalonH

in Marvin \ Software

in Marvin \ Software

DOS 7.1 is more useful and functional than 6.22. I remember posts on usenet talking about DOS 6.22 vs the forgotten DOS 7.0 in late 95-1996, then later DOS7.1. Still In 20+ years other than MS deliberately breaking WIN3.1 and creative's PNP CTCM driver I have not come across a game/app that works on …

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Re: Triple boot (98/2000/XP) while ensuring SSD alignment

Posted on 2019-11-14, 11:36

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Connect SSD/CF to a modern PC and Partition and format (fat32) with Win10. The first partition will start at sector 2048 and will be aligned for an SSD/CF/Modern 4K Hard Drive with (512e emulation). Don't worry about compatibility with older operating systems. DOS7.1/Win98/WinMe boot and work as …

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Re: Help repair my 486 DELL 433/L motherboard

Posted on 2019-10-14, 13:28

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

First rule out if the motherboard has become shorted. Power off the board and unplug everything (including CPU). Use this diagram of the standard AT power pins and locate your board. (I think this Dell model uses standard AT pinout) https://1.bp.blogspot.com/-gpGFoA91uYI/XDN8vxjQnbI/AAAAAAAAH-g/ …

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Re: Gateway 2000 P5-90 Restoration

Posted on 2019-08-11, 17:05

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PC Mag September 1994 reviews this system as part of 40 Pentium 90s covered in the issue (one overclocked to 108mhz that later failed despite a humongous heatsink). The list price for Gateway 2000 P5-90 in that issue is $3999.

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Re: IDE controller card for Pentium 70 (ISA) worth considering?

Posted on 2019-08-07, 13:54

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am using a promise S150 TX2Plus PCI card on a intel 430NX motherboard /P90 and it works in DOS/Windows. It is vastly faster than the onboard ide (PIO 3). I run a cheap 128GB SSD off it and get around 45MB/S in DOS (promise bios extensions rom flashes up 'DMA MODE 5' before dos loads. 430LX is a …

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Re: Throttle Dos

Posted on 2019-08-03, 09:04

by

by AvalonH

in Marvin \ Software

in Marvin \ Software

I get the same noise with a MS-6156 motherboard. I disabled all fans in my setup (the system runs cool enough with passive heatsinks) and run the motherboard out of the case When a throttle % setting is picked, pretty annoying coil noise comes from the motherboard mosfet area. Disabling the L1 cache …

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Re: 1GHz P3's - which one runs cooler?

Posted on 2019-07-30, 13:55

by

by AvalonH

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Slot1 1GHZ(133) in my experience run cooler than equivalent socket370 chips and also under-volt much better. I found this true even comparing with s370 cD0 steppings. (the latest slot1 1ghz , SL4BS, is cc0 stepping). Look on ebay for the SL4BS - and get a compaq/hp server version if you can. They …

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Re: ESS AudioDrive (ES1868) - a surprisingly good ISA sound card

Posted on 2019-07-26, 13:21

by

by AvalonH

in Marvin \ Sound

in Marvin \ Sound

I have found Adlib compatibility is not great with a ES1869 in DOS.I tried around 20 random old games and 6 of them had Adlib compatibility problems (so the amount is probably much higher). This is with clean boot and no TSRs loaded. Games I tried that do not have sound when selecting Adlib: …

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Re: SB Live! Value (SB0100) or Dell/OEM SB Live! (SB0200 / SB0220) in DOS

Posted on 2019-07-25, 14:13

by

by AvalonH

in Marvin \ Sound

in Marvin \ Sound

Get a Audigy 2 ZS <...> It will work in DOS exactly the same as the SBLive series. If LightStruk wants to get it working in DOS and nothing more what the sense to buy Audigy 2ZS? You said yourself "exactly the same as the SBLive". SBLive "SB" series are all universal 3.3/5 too ("CT" aren't). So, …

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Re: ESS AudioDrive (ES1868) - a surprisingly good ISA sound card

Posted on 2019-07-25, 00:07

by

by AvalonH

in Marvin \ Sound

in Marvin \ Sound

I have found Adlib compatibility is not great with a ES1869 in DOS.I tried around 20 random old games and 6 of them had Adlib compatibility problems (so the amount is probably much higher). This is with clean boot and no TSRs loaded. Games I tried that do not have sound when selecting Adlib: …

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Re: SB Live! Value (SB0100) or Dell/OEM SB Live! (SB0200 / SB0220) in DOS

Posted on 2019-07-24, 12:17

by

by AvalonH

in Marvin \ Sound

in Marvin \ Sound

Get a Audigy 2 ZS (don't get the dell OEM version, check it has joystick port pins on the board etc). Pretty much all of them are universal 3.3/5v PCI cards. It will work in DOS exactly the same as the SBLive series. The Dos driver it uses is Sbeinit version 5. Sblive cards use version 4 and lower ( …

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