Profex "PC 33" - Suntac 80286-12

Posted on 2019-12-10, 20:38

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by Predator99

in Marvin \ System Specs

in Marvin \ System Specs

My Profex "PC 33" - Suntac 80286-12 arrived. No time at all but I had to do the emergency battery repair. Therefore some photos of what I got and whats inside ;-) https://www.vogons.org/viewtopic.php?f=46&t=17341&p=805979&hilit=profex#p805979 profex.jpg IMG_9959.JPG IMG_9960.JPG IMG_9961.JPG IMG_ …

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Re: ISA XMS/EMS Memory Extension / Expansion cards: Now Running without Driver / Documentation :-)

Posted on 2019-12-06, 22:35

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bought another board to play with: "MC-M410", comes with 3.5 MB RAM. Has only one configuration-DIP with 8 switches. MC-M410a.jpg MC-M410b.jpg Its the same one as mentioned here http://oldcomputer.info/pc/board_mem/index.htm http://www.vcfed.org/forum/showthread.php?51007-Soft-Tronik(-)-MC-M410- …

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Re: Bought these (retro) hardware today

Posted on 2019-12-02, 20:06

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Profex "PC 33" (sellers pictures). Not loooking nice, but for the price I couldnt resist although I am out of space and didnt want to buy any more complete systems... It has a Suntac 286 board in it. With battery damage, but working. An EGA card and a MFM controller with cables. Case will go into …

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Re: Bought these (retro) hardware today

Posted on 2019-12-02, 19:43

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Turbo -> wrote: but I took all of them anyway,. Nice, I most like the Sony. You should also keep the DAT drives!

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Re: Forex 80386 with AMI-Bios hangs at "A0"

Posted on 2019-12-01, 11:32

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oha, seems to be similar. I tried to remove the W2465AK in U16. Now it starts with 128kb Cache... There seems to be something wrong with the configuration. As I got the board there was no cache installed at all. I never understood the 386/486 cache configuration requirements with TAGs and different …

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Re: Forex 80386 with AMI-Bios hangs at "A0"

Posted on 2019-12-01, 10:33

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, I am also not sure about my chips. Just removed the 4 Motorolas in Bank 0 and it still detects 64kb. Maybe mine are also bad/not compatible. But I dont have replacements here at the moment. My board seems to support 128kb maximum anyway.

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Re: Forex 80386 with AMI-Bios hangs at "A0"

Posted on 2019-12-01, 09:14

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My board has a Jumper to select "32 K" or "64K/128K". In the current configuration 64K are detected and used. But as written, I think my patch fixed something with the keyboard, not the cache. But I am not sure about this, didnt check the code I deleted :-) At which POST-code does your board hang? …

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Re: Forex 80386 with AMI-Bios hangs at "A0"

Posted on 2019-11-30, 22:19

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Made a "Software repair" for that board now. I dumped the BIOS and started PCem with it. Then I used a debugger to search for the code where the "A0" is put out on the post card. Quite easy as there is only one occurence of mov al,A0 out 80,al I NOPed everything out till the next port 80 output (mov …

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Re: Bought these (retro) hardware today

Posted on 2019-11-24, 16:06

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So guess who will buy this? 5 kg for 45€ is a good scrapper price. So this PAS will be recycled in a few days. Buy it :-p https://www.ebay.de/itm/ca-5-kg-Platinenschro … q4AAOSw6S5d2oaN

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Re: Bought these (retro) hardware today

Posted on 2019-11-24, 16:01

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks. Think some people here are envious of my deal. How about keeping your eyes open rather than complaining? Think most lots in which I spot a valuable card go to the recycler if I do not buy it. I already bought many 20kg lots to get 2-3 boards I have been interested in. Sold the remaining …

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Re: Bought these (retro) hardware today

Posted on 2019-11-24, 14:23

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I dont see the problem. I always ask the seller to create a new offer on Ebay for me, so its not against Ebay rules. My request was very early after the auction was created, so he had the chance to cancel the auction and change the photo. As you can imagine sellers photos are very bad so I didnt …

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Re: Bought these (retro) hardware today

Posted on 2019-11-24, 13:39

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Spotted another wavetable card in a 15 kg lot - the seller agreed to send it to me for 45€. Arrived in an envelope, but seem to have survived... The lot was sold for much more (and the Yamaha was not removed from the photo), hope this will not give a surprise for the winner... Filename IMG_6848.JPG …

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Re: Port 80 POST card in XT

Posted on 2019-11-21, 20:33

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thats indeed a good idea! http://stanislavs.org/helppc/ports.html 080 Manufacturer systems checkpoint port (used during POST) 080-090 DMA Page Registers 081 High order 4 bits of DMA channel 2 address 082 High order 4 bits of DMA channel 3 address 083 High order 4 bits of DMA channel 1 address But I …

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Port 80 POST card in XT

Posted on 2019-11-21, 19:57

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I hope somebody can help me in explaining this observation with a China-POST-card. When sending a byte to port 80 with i.e. mov al,66 out 80,al The number "66" is displayed on the card when doing this in a 286+ PC. Thats what it should do. But when trying the same on a 8088 XT nothing is displayed …

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Re: Bought these (retro) hardware today

Posted on 2019-11-19, 10:13

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Predator99 wrote: imi....where do you have been? :lol: […] Show full quote imi....where do you have been? 🤣 RAM-day today. Think 50€ is quite OK for this. I see many 30-PIN modules which are not easy to get for cheap... sellers pic: The attachment s-l1600 (1).jpg is no longer available Arrived... …

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Re: Bought these (retro) hardware today

Posted on 2019-11-16, 10:56

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

imi....where do you have been? 🤣 RAM-day today. Think 50€ is quite OK for this. I see many 30-PIN modules which are not easy to get for cheap... sellers pic: Filename s-l1600 (1).jpg File size 635.83 KiB Views 2005 views

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Re: Bought these (retro) hardware today

Posted on 2019-11-14, 20:56

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by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry imi, just corrected it 😉 Too many replies 😁

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Re: Bought these (retro) hardware today

Posted on 2019-11-14, 20:53

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

imi won the price 😎 TNT Filename 608_stb_velocity_4400_rev.a_top_hq.jpg File size 300.46 KiB Views 1105 views Voodoo Filename voodoo3_2k_fhq.jpg File size 292.52 KiB Views 1105 views Shit 😈

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Re: Bought these (retro) hardware today

Posted on 2019-11-14, 20:38

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks, very nice!! No, I usually dont bid on full systems. Prices are too high and I dont have space left... says the person buying up all of the scrap lots ^^ yeah the price wasn't that great of a deal or anything, but I can use all of the parts in it and if everything works... like if you add up …

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Re: Bought these (retro) hardware today

Posted on 2019-11-14, 20:23

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I received these 3 cards today. Was sure I made a good and fair deal by offering 50€: Voodoo2, Voodoo3 and a IDE-controller with ROM, will put a XT-IDE on it. All cards looking good, but 2 caps of the V2 broke during shipment. But...what mistake did I make? 🙁 🙁 🙁 Filename IMG_6645.JPG File size 1. …

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