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Re: IBM NetVista 6579-RAU Pentium III - which AGP VGA?

Posted on 2015-01-02, 20:03

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

AGP 2x is actually nice (harder to find on IBMs since most are 4x+). If you really want to go all-out, I would recommend a voodoo 5500 AGP 2x -- pretty powerful cards, the 4500 pushes warcraft 3 no sweat, so the 5500 should do even better. I have a few lying around (I also mod them with brand new …

Re: Vortex2 Phoenix Project

Posted on 2015-01-02, 03:07

in Marvin \ Sound

in Marvin \ Sound

There are a *lot* of OPL3 implementations / clones, but I am curious as to how well the Vortex2 emulates OPL3 (like all OPL3 clones, it will have inaccuracies with interpreting custom parameters such as vibrato and ADSR), but that's what makes clones interesting to me. I may hunt down a variant of a …

Re: MPU-IMC on the MT-32 (issues with certain games)

Posted on 2015-01-02, 02:51

in MT-32 General

in MT-32 General

I suppose I should provide an update, I got another one of the MPU-IMC cards with the extra PCBs for cheap-- I haven't noticed any differences between the two. Unfortunately to see what IC is there it requires to be desoldered, may do that later when I have time. A more in depth test regarding the …

Re: Audio problem with old win98 rig

Posted on 2014-12-31, 22:45

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So if that driver is correct, this is a much later soundmax sound card not really designed for 9x (as hinted due to the fact only 98SE is shown) That means: #1 no FM synthesis sub-system #2 unlikely to have a CD-Audio connector #3 poor-to-zero DOS soundblaster compatibility So of course you'll get …

Re: Bought these (retro) hardware today

Posted on 2014-12-31, 22:24

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

. Also bought an FX5500 from MSI for cheap and got a pile of scrapped motherboards as a bonus. The only worthy one is ASUS TP4 (had 200MMX CPU and 2x8MB FPM sticks installed). Unfortunately, they all miss copper coils, is it repairable? If you can solder in equivalent coils to the correct (or close …

Re: Just aquired a IBM Aptiva 2168-26P

Posted on 2014-12-29, 21:51

in Marvin \ System Specs

in Marvin \ System Specs

Actually I lied, here's *A* recovery disc for 2168: http://www.ebay.com/itm/Lot-Vintage-IBM-Bundle-/351266048357?pt=US_Vintage_Computing_Parts_Accessories&hash=item51c9168965 This page here outlines every single Aptiva recovery disc PN: http://ps-2.kev009.com/pcpartnerinfo/ctstips/deca.htm The discs …

Re: Just aquired a IBM Aptiva 2168-26P

Posted on 2014-12-29, 21:45

in Marvin \ System Specs

in Marvin \ System Specs

It would have been a recovery CD-- unfortunately IBM recovery media for their desktops is as scarce as OS/400 installation discs. No one has kept an active archive and I don't believe they're legal to distribute (because they deploy a registered version of Windows). Only solution would be to find a …

Re: Pentium Pro and Windows 95/98 for old DOS games?

Posted on 2014-12-29, 10:01

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually Pentium Pro in 16bit applications is not that bad. Performance is similar to the classic Pentium P54 or Pentium MMX at the same clock, much faster than any 486. I have one retro PC with Pentium Pro @ 233 MHz and DOS games are running very well. In 32bit, the PPro 200 MHz is almost on par …

Re: Pentium Pro and Windows 95/98 for old DOS games?

Posted on 2014-12-29, 00:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For starters Pentium Pros are not very good at executing MS-DOS instructions as they were designed for 32-bit environments and not 16-bit-- you'd be far better off with a regular Pentium 1 or 486. You can use 98SE to run those DOS games file (however you may need to restart in MS-DOS mode and …

Re: AWE64 Gold weirdness

Posted on 2014-12-28, 08:01

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cloudschatze wrote: raymangold wrote: The only disadvantage of the AWE64 is that it uses software "CQM" and not real FM synthesis. Not to be pendantic, but CQM isn't software-based. Nope, EMU programmed it in software despite if it changes on which ICs it's burned into.

Re: Bought these (retro) hardware today

Posted on 2014-12-28, 07:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Finally found a SB MCV Pro 2 ('enhanced' version of the microchannel soundblaster with OPL3 instead of OPL2) for $100: http://i.ebayimg.com/00/s/OTYwWDEyODA=/z/r3IAAOSw7ThUmMIc/$_57.JPG Going to do some recordings once it arrives (and obligatory recapping since Creative used the lowest possible …

Re: AWE64 Gold weirdness

Posted on 2014-12-28, 05:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The only disadvantage of the AWE64 is that it uses software "CQM" and not real FM synthesis. So it's not designed to play Adlib and things like Adlib tracker (you'll get a bunch of very bad squealing). EMU seemed to have designed it around the licensed instrument set Microsoft uses in windows for …

Re: IBM 300GL (6282-87U, P1/Socket 7) Power Supply

Posted on 2014-12-28, 05:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What a nightmare :dead: . Overall sounds like a booby-trapped delirium on the early ATX standard. On P2 they used yellow for -5V. On P9 they used purple for +5V, and green for 'CONTROL' (which probably = PS_ON# ). On P10 they used brown for +3.3V. Etc. etc. http://image.pinout.net/pinout_network_ …

Re: IBM 300GL (6282-87U, P1/Socket 7) Power Supply

Posted on 2014-12-28, 04:36

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You might have luck with a modular PSU. Just de-solder the cables from the IBM PSU, sacrifice the ATX-POWER cable that comes with it and make a nifty modular cable that works on that weird standard (which then could be used with any modular ATX PSU in the future). AT and 'old school' ATX use -5v …

Re: IBM 300GL (6282-87U, P1/Socket 7) Power Supply

Posted on 2014-12-28, 04:20

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's actually a *very* unique computer. Known as the 350 (which as a result has some similarities with the PC 340) it was the first of the PC 300 series to have the "GL" suffix. I would like to remind everyone that the 6282 300GLs or PC 350s were designed just before the ATX was in full effect and …

Re: MT-32 rev 1 mobo photo request

Posted on 2014-12-15, 07:40

in MT-32 General

in MT-32 General

We now have power going to the LCD after reworking the circuitry with Phil's photos (and I switched it to use the smaller voltage regulator): https://scontent-a-sea.xx.fbcdn.net/hphotos-xfa1/v/t1.0-9/10696364_386260028219514_1271586384433506093_n.jpg?oh=20119c1e35ff4e81df521575528aa0bf&oe=5541769F …

Re: MT-32 rev 1 mobo photo request

Posted on 2014-12-15, 03:29

in MT-32 General

in MT-32 General

Forgot about the images :blush: http://imgur.com/a/Wq6JG Hope this helps you out... Awesome thanks Phil! So for starters: #1 the old voltage regulator is present in both the Rev 0 / 1 MT-32s. It's just the MT-100 that uses the larger one. #2 there is indeed a resistor missing, along with two …

Re: MT-32 rev 1 mobo photo request

Posted on 2014-12-15, 00:12

in MT-32 General

in MT-32 General

Was your MT-32 modified? I just took some images of a MT-32 (New) and they are uploading. Hey Phil, That is actually an MT-100 board; prior to my modifications it was missing the majority of the connectors that you now see present. I never bothered to remove the MT-100 specific connectors, so there …

Re: MT-32 rev 1 mobo photo request

Posted on 2014-12-14, 08:02

in MT-32 General

in MT-32 General

https://scontent-a-sea.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/10849970_385833744928809_7115093765342886623_n.jpg?oh=64c62fd9d4a5e591f80ae355994530be&oe=54FB0403 Okay I decided to take a photo of (my) board and explain why I need another photo of a rev 1 MT-32 board. On the right you'll see the voltage …

Re: MT-32 rev 1 mobo photo request

Posted on 2014-12-12, 06:22

in MT-32 General

in MT-32 General

http://www.synfo.nl/servicemanuals/Roland/MT-32_SERVICE_NOTES-3rd.pdf While that does have (somewhat) of a photo, it's repeating things from the solder mask that I'm already aware of. I need a photo of a rev 1 board to confirm what the solder mask isn't clear of in certain areas, and also to …

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