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Re: Short on ISA slots? Try this.

Posted on 2021-07-14, 13:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nice project. I didn't know it was so simple to extend your ISA's I've only seen solutions from comanies that do limited transfers and require PSU on both backplane and motheboard and also need to simultaneously switch them on, like this: http://www.acces-usa.com/?p=/isa/ptrc_at.html they also have …

Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )

Posted on 2021-07-04, 17:41

in Marvin \ Video

in Marvin \ Video

Nice work. I bet a lot of people are interested in this. keep up Also, at later stages if possible add a feature connector 😀

Re: New sound card project: AWE64 Legacy

Posted on 2021-04-23, 14:09

in Marvin \ Sound

in Marvin \ Sound

Thanks for the update guys I look forward for an assembled unit as well. 😀

Re: New sound card project: AWE64 Legacy

Posted on 2021-02-13, 22:25

in Marvin \ Sound

in Marvin \ Sound

Congrats on the release and good luck!! I'm also interested in an assembled unit, when these will be available. Also, from your pics I noticed an array of holes (maybe for pins?) mentioned as DBG Just out of curiosity what are these for? Also, is it possible to send us the manual to understand more …

Re: 3 (+3 more) retro battle stations

Posted on 2021-02-07, 17:38

in Marvin \ System Specs

in Marvin \ System Specs

Nice one pshipkov! I'd expect that for games, since these extra MHz on FSB can make a difference (for GPU). On CPU hungry apps though I'd expect the opposite. Haven't tried the 50MHz FSB though not sure my GPU can handle it, but i'll give it a go. My Jetway also report it wrong (150MHz) but every …

Re: 3 (+3 more) retro battle stations

Posted on 2021-02-06, 15:38

in Marvin \ System Specs

in Marvin \ System Specs

If you check the link I posted above about the multiplier pin, it also tells about the cache pins (4 pins) and how to manually enable WB I haven't tried that as it was more complicated and my motherboard already enabled WB http://web.inter.nl.net/hcc/J.Steunebrink/amd5x86.htm

Re: 3 (+3 more) retro battle stations

Posted on 2021-02-01, 22:30

in Marvin \ System Specs

in Marvin \ System Specs

Here are the pics I promised. Hope these help a bit You need to ground pin R17. I broke that pin on socket to cut connection with motherboard and soldered a cable to ground it. You may also findsome 486 interposers sold by Amazon that do voltage, multiplier and cache selections, but are expensive (I …

Re: 3 (+3 more) retro battle stations

Posted on 2021-01-31, 19:11

in Marvin \ System Specs

in Marvin \ System Specs

A really simple one actually - I just ordered a 168-pin socket, like this: https://www.ebay.com/itm/2pcs-700-168-17-0SPF-PGA-168-Pin-Socket-PGA168TH/393079893830?hash=item5b85632f46:g:Pv4AAOSwzmZf8JaC cut the pin from socket to break connection with motherboard and soldered a cable to it that …

Re: 3 (+3 more) retro battle stations

Posted on 2021-01-30, 20:43

in Marvin \ System Specs

in Marvin \ System Specs

Hm does the board has any jumper for multiplier? if not you have to manually ground a pin or use an interposer with that option. check this site here: http://web.inter.nl.net/hcc/J.Steunebrink/amd5x86.htm I had the same issue with my jetway J-435 board - it uses same VIA chipset (and it also its …

Re: A special BIOS LBA EIDE Multi-IO Controller: DTC EIDE Ultima Pro

Posted on 2021-01-30, 19:03

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wow didn't know these were that good!! But mine results from speedsys were close to that as well nice work pshipkov an ultra fast 32gb enabled ide controller 😁

Re: A special BIOS LBA EIDE Multi-IO Controller: DTC EIDE Ultima Pro

Posted on 2021-01-03, 21:14

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes both ISA/VLB versions seem to support DMA transfers and 32-bit disk access for windows 3.x These however come from DTCs drivers and not the BIOS itself. These drivers are already uploaded here in vogons drivers (DTC Enhanced IDE Miniport Driver) and are for both ISA/VLB Versions

Re: Best CGA & Hercules monochrome games

Posted on 2020-11-14, 13:48

in Marvin \ Software

in Marvin \ Software

Some of my favourites Alley Cat (1983) Arkanoid (1986) chessmaster 2000 (1986) - still the best chess game I know-beats everything 😁 and Tetris

Re: S3 Vision 968 VLB replica

Posted on 2020-11-14, 13:43

in Marvin \ Video

in Marvin \ Video

WOW Awesome project!! Good work everyone!

Re: New sound card project: AWE64 Legacy

Posted on 2020-11-14, 13:28

in Marvin \ Sound

in Marvin \ Sound

In my book, the whole point of CD-ROM controllers on the sound cards was already obsolete in the 486 era, let alone more modern systems. So nope, no interest in that and no PCB budget for that. OK thanks. Makes sense, I was just asking. Personally I kinda disagree on this for 486 systems, but I get …

Re: New sound card project: AWE64 Legacy

Posted on 2020-11-14, 13:08

in Marvin \ Sound

in Marvin \ Sound

Nice project guys! Keep up! Might be pointless, but have you also consider adding an IDE CD-ROM controller to it?

Re: A special BIOS LBA EIDE Multi-IO Controller: DTC EIDE Ultima Pro

Posted on 2020-11-14, 13:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here are pics from DTC VLB boards. Originally, their BIOS did only up to 8.4GB. Don't really know differences bewteen them, but there are also several links in TH99 for these revisions. Also an important note: while both were successfully working up to 32GB with the BIOS chip from ISA Ultima Pro …

Re: VL/EISA SMP Pentium (turbocharged)

Posted on 2020-11-01, 20:43

in Marvin \ System Specs

in Marvin \ System Specs

Sorry for the delay, I was away... the IDE controller is working but very slow. I have to check for serial and parallel under windows if correctly detected. For the pinouts I check as soon as possible. Thank you for that! I still don't know why IDE on mine is not working. For the ports you can also …

Re: A special BIOS LBA EIDE Multi-IO Controller: DTC EIDE Ultima Pro

Posted on 2020-10-26, 00:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry for the delay. I just found some time to dump the LBA BIOSes. The two 1.6 Versions are from VLB adapters and go up to 8.4GB The 2.2A version is from the ISA adapter and go up to 32GB This also worked on the VLB cards, enabling 32GB to them. Can maybe anyone upload these to Vogons Drivers? …

Re: VL/EISA SMP Pentium (turbocharged)

Posted on 2020-10-25, 23:52

in Marvin \ System Specs

in Marvin \ System Specs

I have also a Acer J3 board with the original serial and parallel cables. I can check them and post here the 3 pinouts. That would be awesome thank you!! Does your board reports the ports? Also is the IDE interface working? Sorry for the delay, I was away... the IDE controller is working but very …

Re: Help identifying VIA ISA/VLB 486 mobo

Posted on 2020-07-20, 21:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone Sorry for reviving an old thread. I just recently aquired a similar mobo (Jetway J435-A). I noticed that it had some printed information on the PCB about the jumpers Keropi mentioned that are also not included in the scanned manual. These are for onboard L2 cache and goes as follows : …

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