A 'new' measurement setup

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  • technodanvan
    Super Senior Member
    • Nov 2009
    • 1446

    #1

    A 'new' measurement setup

    I've been eyeing Jon Marsh's measurement setup a bit and had been wanting to upgrade mine to something moderately mobile and quite flexible. The first purchase was a rolling toolbox in place of the cart Jon used. I felt having the drawers for tools, cords, wires, crossover bits and baubles, and other stuff would be handy. Of course, it's kind of heavy, but rolls pretty well anyway.

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    Next step was acquiring a computer. So I could go with a couple options, like using some parts I had to make a new one, purchasing an older work laptop from the company I work for, or buying a new computer altogether. I ended up choosing option 3b - I bought my wife a new 16" Macbook Pro and hers had been causing her a bit of trouble. Trouble with computers doesn't slow me down so I inherited her 2017 Macbook Pro. When we were chatting, I also talked her into letting me have her late 2014 27" 5K iMac too. Score!

    I elected to use the iMac first for a couple reasons. (1) it has a really nice screen worth taking advantage of. (2) since it uses desktop hardware instead of laptop processors it's probably faster anyway. Only downside is the ports that are present - no USB-C in 2014. I'll figure that out later, but the first step was getting this thing working better. It came with a 1TB 'fusion' drive (basically 1 TB hard disk plus a 128 GB proprietary 'blade' flash storage device) that was getting slow with a very old install. Here it is in its new home.

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    Naturally, my first inclination was to skip past the whole 'reinstall' all the software and jump to the step where I 'reinstall' all the hardware. So I cut off the screen.

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    The older iMac design was superior in my opinion, but it would have resulted in a thicker body than these 'newer' screen allow. The old design - the one that still had an optical drive - used magnets embedded in the screen to hold it on the frame. You just needed a couple suction cups and could pop it off. Carefully of course - there are wires inside. The 'modern' design is glued on, hence the little blade tool in the photo above. So I got that off and the interior was exposed.

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    What you might notice is the Seagate 1TB hard disk sitting right there. What you can't see is the 'blade' flash drive. That, unfortunately, required a bit of surgery. Here is the left speaker, by the way. They take up a fair chunk of the interior.

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    - Danny
  • technodanvan
    Super Senior Member
    • Nov 2009
    • 1446

    #2
    And here is, pretty literally, everything removed from the case.

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    Specifically what I needed was the logic board, a combination of motherboard and GPU. On this was the blade drive, which looked remarkable like a modern NVME m.2 drive except the connector was proprietary. This was not really a fault of Apple's, for once. The m.2 standard (and NVME standard) was not set yet, so they went their own path so they could use the tech earlier than the competition. This version was stuck at speeds of 2 lanes of PCIe...or about as fast as a modern SATA drive. Anyway, here's the logic board. The flash drive was already removed at this point.

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    At this point I could have just installed everything (including a semi-modern 500GB SATA SSD) but I wanted to go a step further. I removed the heatsink, pulled out the 3.5 GHz Intel i5 processor (a 4690) and installed an 4.0 GHz Intel i7 4790k I purchased on eBay for like $60. Some careful application of thermal compounds on the processor, GPU, and GPU memory, then a very awkward amount of maneuvering to reattach the heatsink, and it was back together. Buttoned her all back up with the new SATA drive and...

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    It works! Apparently some are not lucky with this procedure, probably because they overtighten one side of the CPU/GPU first and put uneven pressure on the chips. Gotta put it on like tightening the lugs on a tire.

    In any case, this was just step one. I wanted a Mac so I could (maybe) try out Fuzzmeasure and other software packages I've thus far been unable to use. But at the same time....

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    I wanted an Intel-based Mac so I could also run Windows on the machine, and thereby use my more traditional software.

    This is where I'm at now. I need to get software installed and a couple devices working. I'm not so sure I can get the Motu M4 working properly without a native USB-C port, but we'll try anyway!
    - Danny

    Comment


    • theSven
      theSven commented
      Editing a comment
      I'm thinking awesome Mac User now and next will be linux. Then the plot twist of Windows LOL.

    • technodanvan
      technodanvan commented
      Editing a comment
      My Windows roots run awfully deep!

    • JonMarsh
      JonMarsh commented
      Editing a comment
      I think you probably can with one of the Apple adapter cable sets- it will be USB-C, but not the super duper fast USB-C flavor.

      BTW, I have a 2016 iMac Pro, it's dedicated to a lot of former work stuff, like MatLAB and some custom programs I've got for that, but it's also my Zoom Pro machine for video calls with Steve and Sven and others. I could set it up for Fuzzmeasure, but I have a separate cart for that. It has a virtual machine for Windows.

      I have two 2013 Mac Pro's that can dual boot into WIN10 via bootcamp. Run VituixCAD and other CAD software on them, plus some older Mac software on one that I've kept the Mac software at Mojave for compatibility with 32 bit stuff.

      the intel MacBook Pro I used for Fuzzmeasure died, an internal power charger problem feeding the battery- it's probably repairable, but I just may save change from under the sofa cushions until I can buy a newer M1 Mac Pro.
  • Hdale85
    Ultra Senior Member
    • Jan 2006
    • 16120

    #3
    If the MacBook was apple silicone then they are for sure faster than 4th gen intel, but you can't really run windows on them as well anymore. They certainly are very sleek and clean looking though and had great displays! So much so that people are literally converting them into monitors lol.

    Comment

    • technodanvan
      Super Senior Member
      • Nov 2009
      • 1446

      #4
      The Macbook is also Intel-based, which is one of the reasons I felt safe cutting open the iMac - I had a backup in the event this didn't work. I haven't checked what processor is in the laptop yet, but I'm guessing an i7 of some variety.

      I also want to point out the 4790k - Devil's Canyon - was a great processor back in the day. We tend to want to have things faster still, but a lot of the reason for that is bloated software and operating systems insisting that everything be connected. That and games I suppose. On my main desktop I also compress videos for my Plex server, so having the extra 'oomph' of a 16-core processor is nice to have.

      That said, I also compressed some video on the new Macbook with the Apple M3 Pro silicon, and was really impressed at how fast it did it and how very little battery life it consumed doing so (yeah, I did it on battery only!). If they come out with a larger iMac someday with next gen M3 Max processors (or better) I might have to consider one.

      Anyway, what I guess I'm saying is, the 4790k should be more than fast enough for what this machine will be used for. Browsing, measuring speakers, and maybe dabbling in some crossover shenanigans.
      - Danny

      Comment


      • JonMarsh
        JonMarsh commented
        Editing a comment
        Yeah, I would like an iMac with M3 or M4 and 32" screen- it's rumored to be in development and fairly far along.

        but I have to confess I've been SUPER happy with my Mac M1 Studio Max; got a great deal at Costco at one point, the only drawback was only 512GB internal storage, but I have it sitting on a matching dock with 2TB NVME storage, so that works pretty dang well- of course, the hardest I make it work is with Shapr3D for speaker cabinet design. Currently running a BENQ 32" display I originally bought for photography, but usurped for that task by the Apple Pro XDR display - the HDR capability and resolution put it in a new category for me, plan to "remaster" all my MF photography with it...

      • Hdale85
        Hdale85 commented
        Editing a comment
        Yeah Jon, this macbook air I'm on is an M1 I just wish it had more ram. I have bad tab habitts lol. I've seen several people mention a 32" iMac and that would be awesome especially if they included an m4 pro or something in it or at least keep it pretty affordable. Sadly we won't know until October or November likely. I'm torn between buying a new one or getting a good deal on a used macbook, studio, or mac mini. The m2 pro and up would be plenty for my needs as long as it has 16gb of ram.

      • technodanvan
        technodanvan commented
        Editing a comment
        Honestly I wish Mac would consider an ultra-widescreen for a new iMac. I have a 38" Acer (3840x1600) that I'm still in love with since I bought it in 2017. So much nicer for putting two windows side-by-side, I use it for work every day. Not that a Mac can easily do that without additional software, but still, having Retina-style display in large ultrawide is the way to go, IMO.
    • Hdale85
      Ultra Senior Member
      • Jan 2006
      • 16120

      #5
      Yeah they were solid CPU's just super old, and the new apple chips are crazy nice! They are supposed to be releasing all their desktop products with M4 variants in the next couple months along with the macbooks. There are some rumours of a bigger imac but who knows! I'm strongly considering the M4 Pro Mac Mini that'll be coming out, they finally swapped up the design and it's going to be even smaller than the old chassis, supposedly close to the size of the apple TV. Although I may end up with a MacBook Pro or something just cause I love their displays but the desktop displays prices are just crazy.

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