Re: XTIDE Universal BIOS rev588 + NIC + High end 486 + Win95osr2.5 = BIG FAIL

Posted on 2016-09-12, 12:35

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

XTIDE bios is a real mode INT13 replacement. it does not work with protected mode, windows + os2 bypass real mode int13. on a 486, there is no point using xtide. just attach a CF card directly to the standard ide port. the whole 'XT' in 'XTIDE' denotes that its designed to work with 8088/8086 8bit …

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Re: MT32 power supply rating?

Posted on 2016-09-11, 22:32

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was about to bid $100 on a local CM-32 listing on eBay, as I can't justify spending more than that when I already have an MT-32. It looks like I never would have won, though, because the early bidder's hidden limit was already $128, plus 2 snipers ran it up to over $150 in the last couple of …

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Re: Xi 8088 by Segey Kiselev

Posted on 2016-09-10, 00:47

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Noticed a few odd things; using hma and upper memory blocks is freezing my system. Occasionally I receive a memory failure message during boot. Seems to work fine as long as I don't use himem.sys. I wonder if this could be a keyboard controller error, doesn't that have something to do with HMA …

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Re: Xi 8088 by Segey Kiselev

Posted on 2016-09-10, 00:46

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just use USE!UMB, hex edit the address in, and get all the upper memory the bios does not use, so I can do loadhigh etc. 96kb or 128kb upper memory, I forget. ftp://ftp.icm.edu.pl/pub/msdos/coast/memutil/use-umbs.zip I dont know about dr-dos himem, msdos himem did need 286+.

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Re: Got some 8088 stuff today: now what?

Posted on 2016-09-03, 13:26

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a PCI GPIB card but Ive moved most of my stuff to LXI (GPIB over ethernet). The ram card has 4164 type ram chips (64x1). Each 9 chip column is 64kb, so you have a 384kb expansion card (which on a stock XT which had 256kb, that gives you your 640kb!)

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Re: Got some 8088 stuff today: now what?

Posted on 2016-09-02, 14:44

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

nice stuff. GPIB cards are still usefull, but not so much on ISA unless you had some super oldschool lab equipment to control. the nec control chip on it is probably worth a couple of bucks if you can desolder it cleanly.

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Re: Xi 8088 by Segey Kiselev

Posted on 2016-08-26, 15:04

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i recall posts on vcfed from a couple of poeople + sergey himself with some oddities or issues. When I bought my boards I just forgot to get the FDC pcb, and didnt want to pay shipping just for that board alone :/ I probably should isntead of watching ebay for the right card to come along that does …

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Re: Xi 8088 by Segey Kiselev

Posted on 2016-08-26, 14:45

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im just waiting to find a 8bit floppy card. i read reports of sergey's fdc card has issues..

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Re: How fast is the nec v20 compared to a 286?

Posted on 2016-08-25, 14:06

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by BloodyCactus

in Milliways

in Milliways

wouldnt the biggest impact on all these cpu be external ram speed and wait states

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Re: Sdl2 Android storage detection?

Posted on 2016-08-24, 16:23

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by BloodyCactus

in PC Emulation

in PC Emulation

I believe it just points to the external storage, not internal. If you dont have any, it redirect internally, ie: the /storage/emulated/0 symlink for your app path gets adjusted. I believe, if you trigger the move, android symlinks to it, so you dont kneed to actually know the physical path. I …

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Re: Amstrad 1512 - CGA(ish?) to VGA

Posted on 2016-08-23, 19:10

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

the atx to at converters DONT give you -5v. they just change the pinout. athena power at psu are cheap in usa. I see your in Ireland. amazon uk says 50 quid which is insane. the gbs boards (which you linked) are good most of the time for converting 15khz cga to 31khz vga. not 100% of the time, and …

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Re: Bought these (retro) hardware today

Posted on 2016-08-20, 18:20

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FuzzyLogic wrote: I also bought these DS12887s off some Chinese seller on eBay. The item description read DS12887, but the picture showed a DS12887+. I was expecting the + version. I wonder how old these are. I believe 5th week 2011.

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Re: Bought these (retro) hardware today

Posted on 2016-08-19, 01:02

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

NOS Gigabyte i-ram! I saw it in the background of a book on ebay so I asked the seller and bam, $5! Guess I need to work on parts for a newer build than my 8088+486.. got 4x 1gb sticks coming to fill it out. Battery is probably toast but I dont care about that.

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Re: Bought these (retro) hardware today

Posted on 2016-08-16, 22:14

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

keenerb wrote: Picked up a NIB Boca IO 2 by 4 I picked up a NIB bocca 2x ser/lpt from probably the same guy. I thought for like $4, I can stick com/printer ports into my xi8088 build! 😀

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Re: Era correct web hosting/design software.

Posted on 2016-08-09, 23:25

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thought Xitami web server was much better than roxen back in the day! I hosted many sites on xitami.

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Re: Era correct web hosting/design software.

Posted on 2016-08-09, 15:05

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

homesite editor xitami web server

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Re: How do ISA riser cards work, on classic/vintage PCs with available ISA slots?

Posted on 2016-08-09, 12:15

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

they just make the length of the bus longer. you can get like 20 slot backplanes on ebay. I dont know at what length you start getting reflections on the bus or that, but ISA is a slow bus. I've always wondered, what were those huge backplanes used for? Were there really systems that used all slots …

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Re: How do ISA riser cards work, on classic/vintage PCs with available ISA slots?

Posted on 2016-08-08, 23:03

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

brostenen wrote: This means that a standard ISA riser card, can be plugged into every motherboard that has ISA slots? Example... If one has an old ISA riser card from around 1988, then it will work on a SS7 board? yes.

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Re: How do ISA riser cards work, on classic/vintage PCs with available ISA slots?

Posted on 2016-08-08, 19:07

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

they just make the length of the bus longer. you can get like 20 slot backplanes on ebay. I dont know at what length you start getting reflections on the bus or that, but ISA is a slow bus. the only thing is on the isa bus, you have limited number of IRQ's to share between all the slots. riser cards …

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Re: Maxim Integrated Real-Time Clock chips

Posted on 2016-08-08, 14:59

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Has any used, or are familiar with these? I was scrolling through Digi-Key last week looking for Dallas RTCs when I stumbled across these particular Maxim Integrated chips. According to the spec sheets, they claim their chips are direct drop-in replacement for IBM and compatible systems that use …

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