Re: Bought these (retro) hardware today

Posted on 2019-10-20, 03:41

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is one of the more interesting things I have gotten recently. I had been looking for one of these adapters for a good price for a while. It came with a motherboard, cpus, ram, and a few cards. A Lin-Lin S370 adapter to use Coppermine CPUs in older boards as well as to use Tualatin CPUs in …

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Re: What retro activity did you get up to today?

Posted on 2019-10-20, 01:46

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wouldn't go for a multiplier if I were you - I would get a cheap RAID controller or two and stick all of the disks onto that. Hope your PSU can handle it. Well, I'm not doing RAID, and the point of this is to be super-cheap, and speed is not so much an issue. As far as I can tell, the genuinely …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-20, 01:43

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could you link me to this eBay listing? If I can get this one working, I'm probably going to try and pick up the other card as well.

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Re: IBM AT clone problems

Posted on 2019-10-20, 01:42

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

By some random chance, I managed to get the onboard memory working! I don't even know what I did, but at some point it just... Detected more memory than usual. Now, it's by no means working perfectly. There are 2MB onboard, but it's only recognizing 1664K of that. 640K conventional and 1024K …

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Re: IBM AT clone problems

Posted on 2019-10-20, 00:52

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Alright, so I replaced the battery outright. As it turns out, under any load it drops to about 2 volts. Figured this might be a problem, so I put a 4.5 volt battery pack and set the jumper to be correct. The clock is no longer off by any amount, but I still cannot get anything out of the extended …

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Re: What retro activity did you get up to today?

Posted on 2019-10-20, 00:25

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wouldn't go for a multiplier if I were you - I would get a cheap RAID controller or two and stick all of the disks onto that. Hope your PSU can handle it.

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-20, 00:23

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Inverting the "mode" switches, the computer no longer boots. No post beeps or anything. Putting them back to normal brings it back to life. Pulling the "0WS" jumper and moving J4 "pen" from 1&2 to 2&3 got it to show up in TesX. (I moved to another monitor to use my main monitor for another project) …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-19, 03:47

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just for shits and giggles, I pulled the AST out and ran it again just to confirm what I'm saying. Here's the BIOS screen and TestX results: https://cdn.discordapp.com/attachments/303395805253992448/634958153057959956/MVIMG_20191018_221625.jpg https://cdn.discordapp.com/attachments/ …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-19, 03:15

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What "XMS viewer" do you use? It will most likely be better than the testx I am using, it performs a random testing and it takes ages until a scan of 16 mb is completed... Just checked, it's NSSI in the XMS address window. If you tell it you have 16MB of XMS in BIOS, it will scan it all and show it …

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Re: What retro activity did you get up to today?

Posted on 2019-10-19, 03:00

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also managed to use a Wii to copy the save off of my Pokemon Emerald cartridge. I'll probably inject all those events that are almost 15 years out of date. I'm most interested in hearing how you pulled this off. If you have an OEM GBA Link Cable, you can use https://github.com/FIX94/gba-link- …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-19, 02:31

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the combo card version of that Cheetah card: https://books.google.com/books?id=vcqI6sY2e-kC&pg=PA135&lpg=PA135&dq=cheetah+PC-AT+memory+card&source=bl&ots=5Zh9ATwwHb&sig=ACfU3U1hlOQG5iFVS-xdrkKnV7mo8Zy-bA&hl=en&sa=X&ved=2ahUKEwisw6WQhKflAhVSbKwKHSjACQUQ6AEwAHoECAgQAQ#v=onepage&q=cheetah%20PC …

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Re: Hooking up Hercules monitor to CGA and EGA?

Posted on 2019-10-18, 22:35

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It is, that and many more. It's not a terrible monitor though one that doesn't work way out of specs. The same will happen to monitors appearing to be working or loosing sync, if you keep them running like this long enough. I have my doubts, but I don't seem to have any such monitors, and I'm not …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 22:22

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

... What "XMS viewer" do you use? It will most likely be better than the testx I am using, it performs a random testing and it takes ages until a scan of 16 mb is completed... I'd have to look. I just got home from work and I have errands to run yet. This takes no less time, especially because you …

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Re: Hooking up Hercules monitor to CGA and EGA?

Posted on 2019-10-18, 19:35

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

AFAIR the flyback transformer gets damaged. And, to quote from http://www.vcfed.org/forum/showthread.php?22273-CGA-and-monochrome-monitors-compatibility-and-CGA-mono-mode-of-EGA&p=154849#post154849 : "the 5151 has no horizontal oscillator--it just takes whatever is sent over the horizontal sync …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 19:30

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

the cheetah card looks impressive. :happy: Certainly is, beyond just the 2.5MB of RAM it would give me (which I believe it came out of the factory with!), it's full size! I'm on a quest to fill my AT with full size cards. This would make 3 of 4 cards installed full size, and once I get my full …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 19:29

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What do you think how many combinations I tested before decoding the jumpers on my cards? Not 2^48. Maybe 20. Other people also did it that way. If you like to do it different or keep searching for the manual - good luck. Frankly speaking, when reading what you did so far I have not the impression …

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Re: Hooking up Hercules monitor to CGA and EGA?

Posted on 2019-10-18, 18:55

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes for many EGA cards. Yes for ALL EGA cards. And yes, the DIP-switches must be set for monochrome monitor. And yes, with regular EGA cards, when set for monochrome, the only available modes are 7 and F. But there are some special EGA clones, notably the ATI EGA Wonder series, that can display any …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 17:21

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you read the thread? What is the output of testx? I read the thread 2 hours ago, I have been at work at work, I have another 5 hours before I will have the chance to even try it. Did you read my post? There are 48 switches and and 3 jumpers to set. 2^48 settings + boot time + several minutes …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 17:08

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Remove all RAM except bank 5 (will not conflict with base RAM) and start with the "bank 5"-DIP. Would also not a bad idea to take a look what the current configuration is? Put it in a 286 nad start testx... Installing it as it is in my 286 yeilds zero results. Nothing on BIOS memory count, and …

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Re: Help finding info on some cards. Warning, pictures

Posted on 2019-10-18, 16:31

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by FAMICOMASTER

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The last one you will get running with the method here https://www.vogons.org/viewtopic.php?f=46&t=62298 For the 2nd one you most likely need a configuration software as its jumperless. Yes, I read that thread. Like I said, there are SIX BANKS OF EIGHT SWITCHES. There are 256 possible positions for …

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