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Re: Duke Nukem (the original) garbled or no sound

Posted on 2018-04-18, 02:04

in Marvin \ Software

in Marvin \ Software

Yup, works fine on the 486... however, it just occurred to me while pondering your response that the only thing in common with the computers where it didn’t work was the disks I used to load it from. Sure enough, a couple of the files must have been corrupted, as some new disks worked perfectly. Ugh …

Re: Duke Nukem (the original) garbled or no sound

Posted on 2018-04-17, 19:01

in Marvin \ Software

in Marvin \ Software

Maybe I'm confused, but the first Duke Nukem (1991) only has PC-speaker sound ... my sound card has a pc-speaker input connection, maybe connecting the pc-speaker output from the motherboard to that instead of the speaker would help?

Re: Duke Nukem (the original) garbled or no sound

Posted on 2018-04-17, 15:10

in Marvin \ Software

in Marvin \ Software

Forgot to mention... I've tried dos 6.22 and 7.1 on the pentiums, while the 486 laptop runs Windows 95.

Duke Nukem (the original) garbled or no sound

Posted on 2018-04-17, 15:01

in Marvin \ Software

in Marvin \ Software

Maybe this has been asked and answered before, but I couldn't find it... I've been having trouble with the sound being garbled with the original Duke Nukem, which has PC-speaker only sound, when running it on a Pentium 1 computer... I 've tried this with three different machines, two different P75s …

Re: Pentium 1 build — choices, choices

Posted on 2018-04-17, 14:47

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So, an update. I finally got my system up and running with the GA-586HX and so far it seems stable, but I first had a bit of an adventure with disk-on-modules. A lot of my retro hardware is currently in inaccessible storage due to renovations, so I only had one sub-2 GB HDD on hand, an old Conner …

Re: Pentium 1 build — choices, choices

Posted on 2018-04-05, 13:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So after all that, I now have a new contender for this build. While visiting my parents over the Easter weekend, I found out that the mini tower I built to use in grad school was still rusting and mouldering away in a dark and damp corner of their 120-year old basement. I had always assumed it was …

Re: Pentium 1 build — choices, choices

Posted on 2018-03-25, 00:33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is a pic of the Compaq motherboard. Filename 98FD3516-B574-4A8A-9367-325C3ACA09EF.jpeg File size 2 MiB Views 460 views

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 23:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here someone has made a convenient parts list of the Compaq motherboard (the Prolinea is the same as the deskpro, I checked the parts on my motherboard) http://matthieu.benoit.free.fr/Compaq_Prolinea575.htm I still can’t figure out what the chipset is.

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 23:04

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Definitely a SiS 5501/5502/5503 chipset in the DEC. I found the data sheet for that chipset: (link fixed) http://www.datasheetspdf.com/datasheet/SIS5503.html I have no idea what chipset the Compaq has. The motherboard has Compaq-branded chips and I can’t find any documentation. I do know that the …

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 20:10

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think the DEC has a SiS 550x, can't remember on the Compaq. I'll have to take a look...

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 18:47

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, the service manual says my board uses interleaved memory, so matched pairs of simms only.

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 15:36

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You could just remove one 32 MB SIMM and go with 48 MB of RAM. That will be plenty for DOS/3.1. Lots of machines of that era had only 32 MB. Back in the 90's I ran Windows 95 on a Pentium 90 with 24 MB of RAM for years. The MB requires ram simms have to be populated in pairs, so that isn't an …

Re: Pentium 1 build — choices, choices

Posted on 2018-03-22, 13:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting. The box came with 80mb, so I was just going to leave it at that. It has 8 MB onboard the motherboard, two 32 MB simms and two 4 MB simms. I would have to get some new 72-pin simms to drop it to 64 MB.

Pentium 1 build — choices, choices

Posted on 2018-03-22, 11:40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have finally gathered up most of the components I need for my Pentium 1 build. This is going to be a dos/win 3.1 machine as I already have a nice PIII Win98se machine. So now I have to decide on which of the components I have to use. Base machine: As the base for this machine I have a Compaq …

Re: What is this mystery VGA ISA card?

Posted on 2018-03-08, 15:10

in Marvin \ Video

in Marvin \ Video

Thanks! This card came in a Pentium 75 from a power generation utility, so I am not surprised it is slow. I'll probably switch it out with something with a little more ooomph.

What is this mystery VGA ISA card?

Posted on 2018-03-08, 01:46

in Marvin \ Video

in Marvin \ Video

Does anyone know what this ISA VGA card is? VGATERM PN 602120 with a WDC WD90C00-JK. I am having a hard time finding anything about it. It would be nice to know what all the dip switches on the back are for. Filename 1D9C3972-8614-4AC1-9888-9506C123EE19.jpeg File size 1.74 MiB Views 430 views …

Re: Help with Shuttle XPC SV25 rebooting problem

Posted on 2018-03-07, 17:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe I should just try disabling the start-up sound...... 😜

Re: Help with Shuttle XPC SV25 rebooting problem

Posted on 2018-03-07, 16:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So, a couple more tests and warming up the box by hitting pause before letting the system boot into windows, and that doesn't seem to help. I guess I'll look into changing the capacitors. I still have a hint of doubt about capacitors being the cause though, as there are no random reboots, and this …

Re: Help with Shuttle XPC SV25 rebooting problem

Posted on 2018-03-06, 15:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Urgh. I was afraid it might be caps but hoping it wasn't as they look fine . . . such tiny, tiny capacitors on that board. I'm used to recapping compact mac boards, where when the capacitors fail, they all fail and leak goo. On the bright side, it looks like the badcaps kit only consists of the 11 …

Re: compaq deskpro 575 cd rom drive

Posted on 2018-03-05, 20:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay. I feel like a fool. It was the drivers. I was certain I used the right disk before. I need to write neater on my floppy labels.

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