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Hi Trixter, here is the mouse driver with a test program I wrote in TP7: https://www.dropbox.com/s/gib1bau7cy6hvad/MOUSEPC1.zip?dl=0 However it works only with Olivetti Prodest PC1 because of its peculiar chips (is driven by video chip for cursor movement). And the difference from original...

I made it for faster exchange of info, but we maintain also a web site, here you can find useful info: http://www.ti99iuc.it/web/go?QM9DET That riser is exactly what you need. I made one with a 286 riser, cutting out some part to have a longer gold-fingers attach:

Hi 1ST1, from my experience on the Olivetti Prodest PC1 ( I manage the PC1 FB page ) I could say that the flickering and noise is a short circuit like you said. The pinout is CGA compatible for sure: Sorry for the image, is the best in my possession. In the Italian manual there isn't that...

Hi to all, I have in mind a new ISA 8-bit project for our old XT with or without an Hard disk. The new item will have a SST39SF010A mapped in Upper Memory >640kb boundary to map a ROM bootable disk. The difference from other project is the disk is also Writeable and thus easily modificable but...

Hi to all I noticed this problem with slow XT/AT Clone with huge (for the time) hard disk in FAT16. The first DIR and similar operation involved DOS int 21h/36h for calculating free clusters... this takes AGES on this type of machine... but I've found a solution to this SLOWness! I've made...

- sorry the image is rendered at very low resolution... this is the link to my guide: http://www.ti99iuc.it/web/_upload/image/PC1-OnePage/Docs/GuidaCFModPC1HD/sfogliabile_mod_PC1/index.html That is what I made for my Olivetti Prodest PC1-HD and it worked. The blue line (2P20) is where i get A2...

(was for mistake published under "software" section, sorry) ERBAUER srl - DMD135A Help Identify this 16 bit ISA Card? 386 486 motherboard? Please help to identify, jumper settings, software and any useful info (ISA 8 bit friendly?) of this card. Maybe is a clone of some known board? Thank...

Please help to identify, jumper settings, software and any useful info (ISA 8 bit friendly?) of this card. Attached Photos: Thank you

For those interested in it, i have finally managed to replace an old 8-bit IDE interface with a CompactFlash driven by a “XT-IDE Universal BIOS” inserted in it's original BIOS. The trick is forcing the CF in 8bit mode and using the existing (but sligtly modified) XTA 40 pin connector. The...

Ok, the experiment has SUCCESS! For 32k C800-CFFF, it worked immediately! For 128k from C000-DFFF i had to modify '688 like you suggested but wasn't working. Examining schematics, i see that lines A15 & A16 in the ROM was connected to GND, so my ram was mapped four time and repeats @ C000, C800...

Thank you pearce! Yes, i'm using exactly that adapter! Thank you for you advices (as Always), i'll try until 128k I'm aiming to have as much as I can UMB to load UP all driver, etc etc I'm trying to replicate the following schematic: It will be very interesting to have a mini adapter (like...

Pearce_jj, I MADE IT! The problem was that fuc%£$£%$#ing RESET line! (wasn't low enought!) For all interested friends, visit: https://www.facebook.com/OlivettiProdestPC1

I'm a fan of the Olivetti Prodest PC1, wich was my first PC. I connected to it (by a self made bus expansion), an XTIDECF (512 Mb of Solid State Hard Disk!) and a VGA (WOW), Sound Blaster I'm interested in the Exchange of old games "scatola gialla" for the PC1 (tipically from CTO). I opened a...

Ok, strangely enough, today is working and booting with 1Gb cf, and 2Gb sd_to_cf cards! In a cheap dual master/slave adapter. All partitions are recognized by Fdisk and working. I used a very short ide cable tris time. WOW finally i can format new hard disk and install SO without floppy. this...

Hoooray, registers are up & running. I find the right chip that was luckily socketed! Grounded the pin Then I had a spare A2 line to use connected to cf/ide adapter ;). All register are Now there! (But What a pain reach here!) Now Register are correct i think (i Remember the same values from a...

Mine...

Hi to all, i "accidentally" lost half a BIOS of a VGA card. It's a ATI VGA WONDER XL (EXMVGAXLV1), Bios label "VGAWONDER XL" 112-14300-003 EVEN (C) 1992 (that i loose) & ODD (C) 1992 (i have it) It has memory range C000-C799 so it must be 16k (half 8k) I already searched in google but no...