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    Unknown (giant!) 386DX motherboard

    Anyone have any idea about this one? It's got wonderfully unlabeled connectors. I'm at least looking for the speaker connector. I originally bought it just for the TI 486, but ended up finding a better one, so I figured I'd just power this up for kicks. Also, any guesses as to what the...
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    The XT that thought it was a 486 AKA The XT486

    Pretty sure things like this have been done before, but I'm sharing my little throw-together. What the base is... I had a 5155 for a little while that was missing its keyboard. In an attempt to replace the PSU fan, I broke the yoke on the screen. Most of the machine's remains were cast away...
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    Can a PS/2 486 use a 32-bit MCA memory board?

    Example: http://cgi.ebay.com/Kingston-KTM-3011-4-MCA-Memory-Expansion-Card-/190440080156?pt=LH_DefaultDomain_0&hash=item2c571d031c I'm seeing a few 32-bit MCA memory boards on eBay and I'm wondering if I can use them to extend a PS/2 76 I have. I typically only see these employed in a 386, and...
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    Tandy 1400 HD -- PSU Bad I think

    So I got a 1400HD in good cosmetic shape for next to nothing, with the obvious disclaimer of "Don't have the power brick, can't test." Incidentally, I DID have a power brick from a 1400HD that I had years back but have long lost. But alas, powering up just illuminates the backlight (sometimes)...
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    Pittsburgh Area Transit

    I grew up in Pittsburgh, but currently live in the outer edge of the Twin Cities (Minneapolis/St. Paul) metro. Anyway, before I was licensed to drive, I took mass transit. It actually first started in high school when the district decided my parents were 3 houses too close to require a school...
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    ISA Slot Extensions?

    Not exactly "vintage", but I'm finding them hard to locate. Basically something like this: http://www.orbitmicro.com/global/isasx2-p-815.html I wouldn't care if it had a cable or if it's just a fixed extension, but in any case I'm looking to push vertically upward off the motherboard to...
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    The Definitive "Why don't we have a driver collection site?" topic

    With my recent experience in this thread, I have to ask the question I know has come up a few times before. Why doesn't someone come up with a user-submittable obsolete-only driver website? Obviously we don't want to become the next "driverguide.com" (that would only draw more traffic and...
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    ATTN: Boca Research FTP is working again, but probably not for long

    Some my have followed my exploits in this thread about my fights to get a Bocaram AT Plus driver. Well, during the course of that, I discovered that the should-be-anonymous Boca Research FTP had become non-anonymous. Thanks to a bit of lookup from Chuck (G), we found that Boca's site was being...
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    WTB: Intel Inboard 386/PC Memory expansion

    If anyone happens to have one ... the bigger the better ;) I did get a PM from someone once offering one, but I didn't see it for a couple weeks (this forum could use a nag pop-up for PMs or a number or something) and then I responded and he never replied. Don't know if the offer expired or he...
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    Need Bocaram AT Plus driver

    Got the card off eBay, need the driver now, and too bad Boca Research's FTP is now inaccessible..
  11. S

    ISA Memory Expansion

    I'm just looking for clarification. Can an ISA memory board actually provide (slow) extended memory, or is it relegated only to the realm of EMS? I'm assuming the latter since I would imagine the addressing of the ISA bus sits in that first 1MB only. I know I once had a microchannel PS/2...
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    Quality Hill

    ****************************** Click for photo ****************************** Not all of this is really, really "vintage" (although honestly I'm starting to think that line is beginning to move towards the Pentium era machines myself... I'd vote if you have a motherboard with pre-PCI slots...
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    Anyone use NetFlix?

    ... because in my previous apartment, I had Comcast's whatever that cost me $150/mo, which is crazy given I only watch a little TV, typically a couple movies, generally on weekends only. (Sometimes more if the mood strikes or there's something particular I want to watch, you get the gist.) I...
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    IBM PS/2 Model 76 - Parallel port interrupt?

    I have an external parallel port driven sound device which I want to use on a PS/2 in lieu of an internal sound card, but it needs an IRQ to work. At this point it appears that the LPT1 port is port 3BCh and no interrupt. I've gone into the setup and don't see an option for that. (COM ports...
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    IBM PS/2 Model 76 - larger SCSI drive? And a bootloader...

    I recently obtained a very nice PS/2 76. Problem is that it came with a tiny 270MB HDD. I have a 386SX that came with a ~400MB, so there's something wrong here. :) IIRC PS/2s use regular old SCSI (one of the few things compatible about them), but I'm wondering if anyone knows how big I can...
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    More about the Atari Portfolio

    So I just found about the little pocket PC from the auction thread where the guy is selling his "surprisingly complete" set on eBay. I am amazed at something like that running for apparently "up to 6 weeks" on 3 AA batteries. If only modern laptops could be built that way. I guess I'm...
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    Getting Started with Programmable Logic / ROMs

    Programmable logic stuff started to appear just as I was in my last year or so at college, and I only barely got to even touch it and certainly didn't get to learn much about it. But with "hardware hacking" that goes on around here (and the impossibly awesome XT IDE project and such), I'm...
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    Likely safe settings for an 8-bit Ethernet card?

    So I have a really old D-Link DE-100TP card http://stason.org/TULARC/pc/network-cards/D/D-LINK-Ethernet-DE-100TP-for-PC-XT-AT.html ... and its default settings are port 300h, IRQ 3, and memory D0000h. Now I'm trying to fit this into a 386 (just because I happen to have this as opposed to a...
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    DOS memory / .COM files

    So I know that .COM files are basically really simplistic executables (at their leanest anyway) that are assumed to start at 0x100 and run within a single segment... normally. What I'm curious is, how hard is it for a .COM to be "bad" and utilize more segments? Is it dangerous to switch...
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    Last night I dreamt of a floppy disk that worked like an HDD...

    Basically it was like one of those faux floppy disks that accept mini-SD cards and require special drivers ... except this one worked in DOS, and in fact contained a generic 720KB floppy drive compatible boot track and a few sectors (enough for a DOS boot apparently), so basically you could...
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