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| Author | New control strip utility 475 OverClock (Read 25880 times) | ||||||||||||||||||||||||||||||||||
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Bolkonskij
Administrator 1024 MB  Posts: 2023 
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on: October 12, 2024, 10:30
Saw an interesting upload for a new utility called Control Strip 475 OverClock on the Mac Garden. Apparently it allows you to easily switch between various overclocking speeds of the 475's CPU: http://macintoshgarden.org/apps/control-strip-475-overclock Now I don't know any more details than what is on that page and I don't own a 475 but that sure looks like a neat solution in software. Anyone of you owning a 475 and willing to give this a try? |
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Knezzen
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Administrator 512 MB Posts: 608 Village idiot
Reply #1 on: October 12, 2024, 12:10
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Wow, really cool!
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wove
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1024 MB  Posts: 1363
Reply #2 on: October 12, 2024, 15:41
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Just out of curiosity I wondered what such a Control Strip would do in an emulator. So I downloaded it in my Basilisk II install of 7.6.1. After downloading it I moved it to the system folder where it was automatically placed in the Control Strip Module folder. However then I found that the Control Strip itself is not installed on the system. I thought that was something that was part of a basic install. So anyway where do I just download the Control Strip components (my guess it is just the Control Strip Control Panel that I need)? I did not see it as a download on the Macintosh Garden.
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ShinobiKenobi
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256 MB Posts: 362 System 7 fan
Reply #3 on: October 13, 2024, 04:45
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@wove I think it would just be on the medium you installed 7.6 from. Several times in the past, I've installed additional features by putting the CD back in and starting to install the system again. You don't actually have to reinstall the system; but you start it, then one of the steps is to add stuff.
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wove
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1024 MB Posts: 1363
Reply #4 on: October 13, 2024, 13:54
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Thanks, you are no doubt correct. The VM hard drive image came with System7.6.1 installed and configured and I do not have any System 7 install media handy. I was wondering if there was somewhere just to grab missing pieces. The Control Strip originally came with the Powerbooks and Duos. It became popular on the desktop pretty quickly, but I am not sure when it became universal on install media. Early on you could find the Control Stip and modules on BBS and online services like Compuserve and AOL.
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ovalking
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128 MB Posts: 199
Reply #5 on: October 17, 2024, 11:12
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It works! Tested on my P475, hardware modified to 33MHz. Quite extraordinary that you can change the speed on the fly, despite having to ordinarily solder resistors! However, it's a bit disconcerting that after selecting the speed there is no feedback whatsoever - not even a bullet against your selection. Note that utilities such as Apple System Profiler do NOT update after the change - they only seem to report the speed at boot. Only way to tell is actually do a speed test. I saw measureable differences doing benchmark or real world tests. I saw the most impact in the time to open my test jpeg with GraphicConverter. 20MHz 62s 25MHz 52s 33MHz 42s 40MHz 36s The docs say a shutdown should restore the speed to default. I only tried a warm restart - this does not reset it. I did get two freezes (both times on selection of 20MHz). I'm guessing this should also work on a Q605.
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MTT
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256 MB Posts: 394 SSW7 Oldtimer
Reply #6 on: October 18, 2024, 06:49
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@ovalking: This is a very good report, thanks. Just a thought; You could add it to the Mac Garden's page for the utility, too. I don't know if the author of this utility (Phipli) visits S7Today, but he would likely see his upload page on the MG. I think this would make excellent feedback for him and might even spur him on to making changes based on your comments. Great stuff, ovalking.
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ovalking
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128 MB Posts: 199
Reply #7 on: October 18, 2024, 20:46
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>Just a thought; You could add it to the Mac Garden's page for the utility, too. Yes of course MTT... I did try but couldn't get past registration... will have another go when I'm on a different machine.
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lauland
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512 MB Posts: 674 Symtes 7 Mewconer!
Reply #8 on: October 20, 2024, 06:04
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I wonder how this magical thing works...is it overclocking the cpu, skipping unnecessary waitstates/delays, speeding memory access, or what...looking here... https://cdn.preterhuman.net/texts/computing/apple_hardware_devnotes/Mac%20LC%20475-Quadra%20605.pdf Whatever it does, chances are it tweaks some registers on the MEMCjr bus/etc controller chip...and so it might work on other machines that also use it...if there are any. Definitely the Quadra 605, LC 475, and Performa 475/476. Could be others, but they'd probably have to have the exact same chip (not the "MEMC Senior"?!?), and connected in the same way to the bus clocks. And...goes without saying...check the heat on ALL your chips, and add heatsinks as needed. (Not just the CPU since who knows what it is really doing). The clearances (and airflow?) on those "personal pizza box" cases are tight.
Last Edit: October 20, 2024, 06:12 by lauland
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