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Phase5 CyberStorm MK2 @ 100Mhz (040 Hack – Stable)

March 18th, 2018 Leave a comment Go to comments
Phase5 CyberStorm MK2 @ 100Mhz (040 Hack - Stable)

Phase5 CyberStorm MK2 @ 100Mhz (040 Hack – Stable)

This is a simple hack to overclock the Cyberstorm MK2 at 100Mhz without needed adapters or simply replacing the oscillator which causes instability or malfunctions.

The hack consists downgrading the Cyberstorm MK2 to 040 simply by moving the two resistors can you see marked in the photos.

For some CPU or MK2 models it is also advisable to replacing the original voltage regulator LT1085CM at 3.3v with this one LT912CM 3.5v but if the amiga is stable after hours of operation you can also avoid the replacing the voltage regulator.

Gallery of the work done:

source: Cosmos Blog

Categories: Projects / Repairs, Today, Various
  1. Joe
    September 26th, 2018 at 16:59 | #1
    Reply | Quote

    Hi,

    I have one MKII 060/50 ver. 5 + SCSI II module. After overclocking SCSI will be working or not?
    What version of 060 I need, version 5 is good or? And what about temparature CPU after overcloking?

    Thanks for answer.

    Regards,

    Joe

  2. xAD / nIGHTFALL
    September 28th, 2018 at 08:41 | #2
    Reply | Quote

    @Joe

    You need REV 6 (71E41J) , about the temperature you need a heat sink and fan. SCSI module works.

  3. Joe
    January 11th, 2020 at 21:45 | #3
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    Hi,

    so If I upgrade to REV 6 and then overclok to 100 MHz, SCSI will be working fine too?
    As I read there are two SCSI chips and only FAS16 support overclocking and secon Simbios not. I have first one.

    Thanks for answer.

    Regards,

    JOE

  4. Joe
    January 12th, 2020 at 13:31 | #4
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    @xAD / nIGHTFALL
    Hi,

    so If I overclock to 100 MHz SCSI will be working fine?

    Regards,

    Joe

  5. xAD / nIGHTFALL
    January 19th, 2020 at 17:43 | #5
    Reply | Quote

    @Joe

    Yep.

  6. Darren EVELAND
    May 25th, 2021 at 15:43 | #6
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    I’ve done the 100Mhz hack for several months, but I am getting SCSI write errors (and sometimes read errors). The system will appear to be fine but if you try to copy a large amount of files you can get a write error. Also HDToolbox will occasionally lock up.

    I have a Rev 6 060 with heatsink and fan…so I am wondering if this overclock is 100% stable with the cybscsi.device ….

  7. DARREN EVELAND
    May 27th, 2021 at 18:42 | #7
    Reply | Quote

    Just an update on my last co

    Darren EVELAND :
    I’ve done the 100Mhz hack for several months, but I am getting SCSI write errors (and sometimes read errors). The system will appear to be fine but if you try to copy a large amount of files you can get a write error. Also HDToolbox will occasionally lock up.
    I have a Rev 6 060 with heatsink and fan…so I am wondering if this overclock is 100% stable with the cybscsi.device ….

    Ok, so I un-did the 100Mhz hack and I was still getting the weird write/read errors, so I guess this is not related to the overclock. Only certain devices would cause errors, others would work, which is very strange. But anyway I found a combination that works…so now the question is, do I go back to the 100MHz hack? I don’t like soldering those tiny jumpers, plus one of the pads is not in good shape.

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