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[#] Sun Jul 27 2003 20:03:38 EDT from IGnatius T Foobar @ Uncensored

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hdparm -d1 /dev/hda

When I turn on DMA using the above command, disk activity becomes intolerably slow. There's definitely something DMA-unfriendly about this motherboard.

Does anyone know offhand if there's a way to specify at boot time that I don't want to use DMA? (I admit it, I'm too lazy to look it up myself right now.)

[#] Sun Jul 27 2003 21:38:01 EDT from Nite*Star @ Uncensored

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Heh, that's a question I'd be asking *you* ;)

[#] Sun Jul 27 2003 21:59:39 EDT from IGnatius T Foobar @ Uncensored

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ide=nodma seems to be the option to use. So I put it in and immedately got hit with some filesystem corruption. Not sure whether the two had anything to do with each other, though.

[#] Sun Jul 27 2003 22:01:36 EDT from Nite*Star @ Uncensored

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Maybe your new MB has a faulty IDE controller? I'm sure it wouldn't be the first time that something like that has happened...or maybe there's a faulty IDE cable b/t the MB and HD?

[#] Mon Jul 28 2003 16:23:33 EDT from Spell Binder @ Uncensored

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IG: When you replaced the motherboard, were there any flat ribbon cables connecting to it? Instead of a typical IDC connector, they may have a flat, "card-edge" style connector. It just slides into a socket on the motherboard.

Well, I found out, the hard way, that those sockets have a locking mechanism on them to keep the cable securely in place. On either side of the socket should be small levers that you push away from the socket to unlock it, and push towards the socket to lock. When I replaced the motherboard on my ThinkPad 360PE, I had a lot of trouble keeping those cables connected until I figured out how the sockets worked.

It's a long shot, but it might be worth checking.
ThinkPad Binder

[#] Mon Jul 28 2003 16:53:21 EDT from IGnatius T Foobar @ Uncensored

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All the connectors locked in with a very satisfying snap when I replaced the motherboard.

Interestingly, I still have the DMA problem, even after a BIOS update and a reinstallation of the operating system (the latter was more because I'd given it enough abuse that it needed a refresh).

[#] Thu Aug 21 2003 15:49:45 EDT from isoroku @ Uncensored

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This is a high level view of the project I'm working on.
IG, you predicted this a while ago and at the time I couldn't say anything.

[#] Thu Aug 21 2003 16:30:00 EDT from IGnatius T Foobar @ Uncensored

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Fascinating read, but what exactly was it that I predicted?

[#] Thu Aug 21 2003 16:35:53 EDT from isoroku @ Uncensored

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The convergence of iSeries (as/400) and pSeries (rs/6000). They run on the same hardware and now they will have the same hypervisor.

[#] Thu Aug 21 2003 18:04:37 EDT from IGnatius T Foobar @ Uncensored

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Oh. I didn't predict that, I heard it from our IBM rep. :)

But, it is very cool. Convergence is a wonderful thing, especially when it's on something other than the ordinary Pee Cee.

[#] Thu Aug 21 2003 18:47:06 EDT from isoroku @ Uncensored

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ah, ok.
implementing the convergence has been interesting, but I think it will be good in the end.

[#] Thu Aug 21 2003 19:15:46 EDT from IGnatius T Foobar @ Uncensored

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Are you at liberty to discuss the kind of challenges you've had to face? I think it'd be interesting to hear about how the new machines are able to run unmodified code from the old ones.

[#] Thu Aug 21 2003 20:47:14 EDT from Ford II @ Uncensored

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What's wrong with convergence on the PC, it might not be the best platform in the world, but having a single 'standard' will make more people compete to sell it cheaper and more people to try adding hacks-to-be-future-de-facto-standards to it. PCI, AGP...

[#] Thu Aug 21 2003 22:16:21 EDT from IGnatius T Foobar @ Uncensored

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Commoditization is a wonderful thing; it drives prices down and makes the technology more available to everyone. But the Pee Cee platform still sucks.

[#] Thu Aug 21 2003 22:18:55 EDT from Ford II @ Uncensored

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agreed, but it's so beaten to death that I can buy a mainframe class machine for nothing.

[#] Thu Aug 21 2003 22:28:04 EDT from Peter Pulse @ Uncensored

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That was the problem with the PS/2. IBM built something with better standards, but most people didn't need it. They were perfectly happy with their cheap PC and AT bus machines. That's why it's noce to now have an OS that's available across a lot of platforms, so you can buy the hardware that suits your needs.

[#] Thu Aug 21 2003 22:45:14 EDT from IGnatius T Foobar @ Uncensored

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The PS/2 failed because it was nothing more than an attempt by IBM to *de*commoditize the PC. Anyone who wanted to build Micro Channel compatible computers or cards, had to pay royalties to IBM. That's why Compaq and others flipped IBM the bird, and built EISA instead.

IBM learned their lesson, and now they're a bastion of openness. Would anyone care to venture a guess as to what they think Microsoft's equivalent of Micro Channel is, or will be? (I don't have an answer in mind; this is an open-ended ponderance.)

[#] Fri Aug 22 2003 07:46:31 EDT from Chickenhead @ Uncensored

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It still bothers me that the BeBox never really got off the ground. They started off with the idea that the current PCs were too filled with legacy junk, and designed a "modern" PC from the ground up--the base models had two CPUs! The so-called "geek port" on the back had people salivating with the possibilities it provided. And then...poof, after shipping a small number of machines, the BeBox just went away.

Of course, '95-'96 was probably the WORST time to try something new considering Microsoft's stranglehold on everything at the time.

[#] Fri Aug 22 2003 08:48:47 EDT from fleeb @ Uncensored

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Yeah, I wanted to buy a BeBox, and embrace the whole Be thing, but I couldn't afford it at the time.

Sadly, I probably could today, but... it's gone.

OTOH, it might be interesting to try to create your own hardware, if you know enough to put it together.

[#] Fri Aug 22 2003 09:22:02 EDT from IGnatius T Foobar @ Uncensored

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I think 1997 was probably the pinnacle of the last decade's dystopia. I remember reading an article in some trade rag that basically spent six pages proclaiming "Microsoft and Intel have won, so everyone else should just voluntarily shut down before being forced out of business." It was just before Linux started to go mainstream.

The game is far from over, though; that dystopia could potentially re-emerge if "Trusted Computing" (or more accurately, as RMS calls it, "Treacherous Computing") is allowed to become ubiquitous.

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