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Daniël Oosterhuis

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About Daniël Oosterhuis

  • Birthday 12/14/1998

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  • Gender
    Male
  • Location
    Siddeburen, the Netherlands

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  1. Daniël Oosterhuis

    *Almost* Fastest PowerBook ever, and more to go.

    I find it rather odd that even all this time later, this has been so glossed over. OP clearly faked using a 7448. Reaching 2GHz on a 7447B isn't that hard, as proven by this iMac G4. Why @asaggynoodle felt like faking he had a 7448 is beyond me. Maybe to screw with the owner of EveryMac, as they posted his fake nonsense verbatim? Anyways, @dosdude1 has real 7448s, so we can finally see some non-faked 7448 action not too far from now
  2. Daniël Oosterhuis

    PowerPC 7457 upgrade for iMac G4

    Going back on topic, @dosdude1, with the help of @LightBulbFun, found out that the GigaDesigns G4 Patcher will work with the iMac G4. He managed to upgrade his USB1.1, 1GHz iMac G4, to a 1.67GHz 7447B processor from a PowerBook G4, overclocked all the way to 2GHz. This patch will likely also work for the 7547.
  3. Daniël Oosterhuis

    PowerPC 7457 upgrade for iMac G4

    True, but the effect of someone buying the way overpriced $360 7457 has already caused another eBay ad to pop up for the 7457... also at $360. That seller saw it sell for that utterly insane price, and now wants in on it. And so, the price will remain that high.
  4. Daniël Oosterhuis

    Sonnet Crescendo G3/L2 in TAM Not Working

    Arctic Silver makes high quality compound, but there might be other good brands out there. Just avoid AliExpress/eBay cheapo compound, and you should be good.
  5. Daniël Oosterhuis

    Sonnet Crescendo G3/L2 in TAM Not Working

    They have a few tantalum capacitors on the back from what I could tell on the one I had (sold it here on 68kMLA earlier this year). One thing could be that the G3 chip might be dead from overheating, these things have fairly pitiful heatsinks, and dried out thermal compound might have pushed some over the edge. But another thing is that these Sonnet upgrades use a FPGA for several functions usually done with discrete components. I do wonder if these FPGAs haven't fallen over and died on these failed cards. Maybe the card overheating could cause it? Anyways, I do recommend people using these cards to reapply thermal compound, specifically with good quality compound, and mind the cooling situation on the Mac it is installed in. Especially the TAM.
  6. Daniël Oosterhuis

    PowerPC 7457 upgrade for iMac G4

    I would hold off on that eBay 7457 chip for now. One of the problems you are likely to encounter is that the chip won't work without a firmware patch. Apple never used the 7457, so it's not as drop-in as a 7410 in place of a 750. The same goes for 7448 upgrades in 7447 Macs, I know @dosdude1 currently has a G4 Mac Mini with a 7448 in it that won't POST anymore due to the firmware not supporting it. For the iMac, you'd have to see if Gary from Daystar still has the firmware patch and is willing to give it to you. That, and the fact eBay sellers are price gouging these old chips, are good reasons to not buy one straight away. If you do eventually buy one, do try to low ball the seller with a Best Offer.
  7. Daniël Oosterhuis

    Feeding VGA 31KHz to a Classic II CRT?

    It's quite neat, but sadly he hasn't done more than get the BeagleBone board to display a static image on the CRT. It's a matter of either getting the Mac Classic up to 24KHz (people tried this before without real success from what I can tell), the Bondi board down to 22KHz (which I have no idea how to achieve this or if it is even possible), or doing a swap with one of those monochrome VGA CRTs.
  8. Daniël Oosterhuis

    Feeding VGA 31KHz to a Classic II CRT?

    Yeah, that might be a bit of roadblock. Now I'm wondering, what if I could attempt to force the Bondi board to run at 512x342? That might get it on-spec to work with the internal CRT, but I don't know if this is a possibility. Just getting an (S)VGA 9" Monochrome monitor would be the easiest way to make the Mac Classic G3, but if I can manage to use the original guts, that'd be even better. Plus, I can't seem to find these monitors very easily over here.
  9. Daniël Oosterhuis

    Feeding VGA 31KHz to a Classic II CRT?

    Darn, the thread you linked has three threads with what looks to be good info on what I want to do as well, totally dead. I might actually not need to bother with KHz conversion. Basically, my plan is to stick a Bondi iMac board, salvaged from a dying CRT/PSU chassis, and stick it in the Classic to make a Macintosh Classic G3. I noticed when I had to board connected to my Multiple Scan 17 monitor, I could push it back to 512x384@60Hz, which I think runs at 24.5KHz? If I could knock it down to 22KHz, all I need to do is feed the right signals to the CRT circuitry and grayscale neckboard, it should work. I just need to figure out where the R/G/B/H/V signals go, and I suppose these three threads might have had some info on that: https://68kmla.org/forums/index.php?/topic/19351-raspberry-piclassic-crt/ https://68kmla.org/forums/index.php?/topic/5045-mac-classic-bw-grayscale-vga-mod/ https://68kmla.org/forums/index.php?/topic/11043-vga-on-compact-crt/
  10. Daniël Oosterhuis

    Feeding VGA 31KHz to a Classic II CRT?

    Hello all, I had a bit of a crazy idea for repurprosing my dead Classic II. Now, to do this, I'd have to be able to feed a VGA 31KHz signal to the internal B/W CRT in the Mac. Of course, it doesn't take that, so I'm wondering if anyone knows how I could modify the CRT driver to allow this? One thing I wondered about is the Micron Xceed, what video signal does it feed to its proprietary neckboard? If it's anything analog, it would be a heck of a lot easier to convert a VGA signal to that, if it doesn't already use such a signal itself. With that, I could attempt to make a neckboard replica, then feed it the appropriate signal and use the CRT that way. If anyone has any idea on it, please let me know! TIA!
  11. Daniël Oosterhuis

    iMac G3 (Rev A -> C) G4 CPU Upgrade

    @dosdude1 is at it again, this time upgrading a Trayloader iMac G3. He's figured out how to change the core voltage on the card, which is necessary when the G3 chip on the card is a ARX Motorola 750, which run at higher voltages that will damage the Motorola 7400 G4 CPU (see the previous post for more info). @LightBulbFun and I have been trying to figure out what sets the Vcore on these cards, so I am very glad @dosdude1 and him figured out that a set of specific resistors does this.
  12. Daniël Oosterhuis

    Mounting PPC750GXs & PPC750FXs on ZIFs

    The 603/604 and 740 compatibility isn't exactly new, @LightBulbFun has been planning on doing such an upgrade for a while, I think he indicated it once in the iMac G3 -> G4 thread. Also, the Wikipedia pages on PowerPC are fairly solid, the main guy working on them, Henriok, knows his stuff. He's also the one who made all the very nice PowerPC CPU renders shown on those pages.
  13. Daniël Oosterhuis

    Mounting PPC750GXs & PPC750FXs on ZIFs

    You know, PowerLogix already did this with their Pismo G3 upgrades. They took the stock card, soldered on an adapter board, then soldered either a 750FX or GX on top of that (the 750FX, 750GX, 750FL, and 750GL are all pin compatible with eachother), and gave you a smaller heatsink to make it all fit. Here is a blog post of someone showing you how to mod the stock Apple cooler for better thermals, which has some good photos of said adapter board. So yes, it should technically be possible to do this, if one was to make an adapter board. I've heard through the grapevine that someone on this forum is looking at doing that, but I'll let them announce that if that is the case.
  14. Daniël Oosterhuis

    AppleCD Plus M3021 won't mount cd's and cd-roms

    The iron should be OK for removing the old capacitors, you might want to grab some flux and solder braid to remove the old solder. With these SMD capacitors, heating up the other side is not needed as the solder joint is mounted on the surface of the PCB, hence the name. However, should you have any difficulties doing this repair, I'm more than happy to lend a hand. I have a hot air soldering station, which makes replacing SMD caps a breeze. I'd gladly replace the caps for you if you want, I just am waiting on some solder paste to come my way from the slowboat from China, then I should have everything needed for a simple recap job. I'm going to have to do some recapping on my Macintoshes soon, I've started out with my iron on my SE/30, but got really frustrated at how hard it is to solder the caps down due to the small leads. Having practiced a bit with my hot air station, removing the caps without damaging the board so far has been really easy, and soldering new caps back on should be just as easy.
  15. Daniël Oosterhuis

    iMac G3 (Rev A -> C) G4 CPU Upgrade

    @dosdude1 happened to do the same mod as @LightBulbFun at almost the same time. Here is his video on his completed Clamshell G4, which runs at 500MHz, but has a custom active cooling system installed.
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