Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-25, 20:54
Can u show what happen on the post card when u switch the button?
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-25, 18:58
Yes can work , no problem for any questions.
Re: I am looking for a software ... or rather two.
Posted on 2021-07-24, 23:43
Yes !! is it thx
I am looking for a software ... or rather two.
Posted on 2021-07-24, 22:56
The first I used to copy floppies and it showed the copy of each sector on the screen during the copy. I remember the yellow rectangles that changed colour as the copy was made. The second handled the images and I remember a colourful frog at start-up. Someone remembers the names of the two DOS …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-24, 01:29
Good evening :) So, i've just got my POST card as someone mentionned i should try it out to see what happends, so here we go the result : https://youtu.be/w4_A1e9XX14 AS you can see nothing really happends, unless all of the leds are on except for the "CLK" one which is off. No numbers or letters …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-20, 20:52
I use a POST CARD (see photo), but there are various models, the cost varies from a little (€) to higher figures, even if it is quite similar (or the same, there are professional ones but they cost a lot), the one that I bought it years ago it is very cheap. It is mainly used to display the Bios …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-20, 05:31
Don't want to hijack the thread, but would just like to say thanks for the power connector pinouts provided here. Just helped me immensely to resurrect my PCS-11, it's original PSU failed today - couldn't get it to start back up again like I did at the weekend. Soon I'm going to replace the PSU …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-19, 20:57
I finished testing the circuit and this is the schematic. I would say it works without problems. tomorrow if the heat permits I will do the version on a base (welding with 34 degrees centigrade is torture). I was wrong to mark the two pins on the previous connection diagram and I corrected it in …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-19, 20:53
I finished testing the circuit and this is the schematic. I would say it works without problems. tomorrow if the heat permits I will do the version on a base (welding with 34 degrees centigrade is torture). I was wrong to mark the two pins on the previous connection diagram and I corrected it in …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-19, 20:29
I finished testing the circuit and this is the schematic. I would say it works without problems. tomorrow if the heat permits I will do the version on a base (welding with 34 degrees centigrade is torture). I was wrong to mark the two pins on the previous connection diagram and I corrected it in any …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-19, 14:32
My PCS-11 has started, the ATX power supply connection circuit (or pico PSU in may case ) is correct except for the brown wire which is the reset that comes from the original power supply, inserting the test board in fact without that wire connected the resetis off , insert a resistance in series ( …
Re: Ratty build for self amusement, Dustin the DOStin....
Posted on 2021-07-18, 17:29
This psu is 65*75*140 (65W) 5V - 10A
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-18, 15:55
I am very curious about these Pico ATX supplies, it seems like my Dustin the DOStin build could use one ( https://www.vogons.org/viewtopic.php?f=25&t=82387 ) but specs I see on eBay have them at about 8A on 5V and 8A on 3.3 which I think might be a bit low for an s370 build, but is probably fine …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-18, 14:56
My PCS-11 has started, the ATX power supply connection circuit (or pico PSU in may case ) is correct except for the brown wire which is the reset that comes from the original power supply, inserting the test board in fact without that wire connected the resetis off , insert a resistance in series ( …
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-16, 19:37
If it doesn't work you can replace the power supply with this one, I normally use it with 286,386 ,486 and same pentium motherboards Obviously with a suitable power supply, I will shortly do it on my pcs11 and let you know
Re: Olivetti PCS33 (386 SX)/M-300 - Repairing
Posted on 2021-07-16, 19:29
Oh I've successfully booted my PCS 11 with an ATX PSU before with the pinout I described above. As my ATX PSU was newer than the ATX 1.x specifications it didn't have a -5v rail, so I left that out (P22). I did this months ago mind you. I knocked up an adapter using a filed down du-pont connector …
Re: Why DOS died...
Posted on 2021-07-16, 18:24
Yesterday on a windows 2016 server a file had a space at the end of the name, windows could not delete or rename it and could not delete the folder, DOS command "RMDIR [dir] / s" delete it. Obviously a young technician lost 1 hour looking for a software that could delete or rename the file, I opened …
Re: Best Linux or Windows OS for a Pentium III??
Posted on 2021-07-11, 16:34
Using web.archive.org https://web.archive.org/web/20051201000000*/h … /puppylinux.org i find this "Puppy will boot off a minimum PC with 586 CPU and 32M RAM." https://web.archive.org/web/20050401030717/ht … ware.com/puppy/
Re: Best Linux or Windows OS for a Pentium III??
Posted on 2021-07-07, 22:23
Reading a old post (2011 https://www.hwupgrade.it/forum/showthread.php?t=2353055 ) the solutios is one of this distro SliTaz ZenWalk antiX Puppy Linux Macpup VectorLinux Obviously not the latest version. But you have to test them
Re: What retro activity did you get up to today?
Posted on 2021-06-28, 19:46
Got an untested Legend QDI Socket 370 motherboard P6V693A/A9 without, I believe, north bridge heatsink. I've installed an Intel Celeron 400 MHZ CPU and turns out she works fine. However, I only tested it in DOS. I hope I will find appropriate drivers when Windows 98 installation comes in order. Hi …
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