T-Rex II image (above left) used with permission from MyAmigaShop.com

The Unofficial
T-Rex I, II (A4060)
TekMagic 2060 (A2060)
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Solutions and Help Requests

4060 T-Rex II

TekMagic 2060

Impact A2000-HC Series II (Burning GVP EPROM V4.15)

Amiga user Charles Hofer notes: "I successfully burned V4.15 EPROM of the Impact Series II. I used the SCSI2SD for my drive and works great. No more locking up. I have had it on all day without issues. The first hurdle was figuring out how to use the Willem PCB5.0C burner. There is very little help on it. There are 11 jumpers on it that have to be set correctly per chip you burn. It also needs an external 12V 1Amp supply. It was driving me nuts until late last night when I saw a forum and the guy said that the voltage settings are important. So long story short, it was set by default for 5V and a 27c256 needs 6.25V. Once I set that jumper correctly, I was able to burn and verify no problem."

  1. Mike Leavitt shares a friend's experience on why the GVP 4060 won't fit into an Amiga 3000 without modifications: "The size of the board is the problem. It works fine if you hack the drive tray enough to fit it in, but without a hack saw it's a no-go. Specifically, the RAM won't fit (just like the CSPPC from DCE) without cutting a hole in the drive tray. It is no problem in the A3000T, of course. There may also be a conflict with the native SCSI, with an MKIII here, I can only use external devices on the native controller. I wish I had more information on that, but an A4000 owner pointed out that the manual tells you to remove any SCSI controller card you have so the SCSI on the 4060 will work. Removing the SCSI chip would disable the native controller though, and should solve the problem if it becomes one.".
  2. Michael Bourne shares a solution for 2060 users: "The new patchline in DEVS:NSDPatch.cfg (posted below)


    from Boing Bag #1 does wonders for tekscsi2.device where removables are concerned. Writes to Zip drive no longer freeze the bus when the Zip is asleep, and there's an "Unexpected Error" while the Zip gets up to speed.

    In addition, OS 3.5 provides the ability to boot with the new v45 FastFileSystem; a normally "foreign" filesystem where the TekMagics are concerned."

  3. Michael Bourne notes that Ralph Babel did port the GURU ROM to the GVP SCSI using the NCR chip:

    From rbabel@babylon.pfm-mainz.de (Ralph Babel)
    Newsgroups: comp.sys.amiga.hardware
    Subject: Re: TekMagic 2060 and non-gvp prep s/w
    Date: 6 Nov 1999 00:00 UT
    Greg Kimnach asked:
    > is there a guru rom for the TekMagic card?
    Yes, there is. (Actually, it's _two_ ROMs for the TekMagic
    card.) I ported the omniscsi.device to the NCR53xxx (also
    used on the A4091) when I wrote the 68060.library for the
    TekMagic card in '95. Two years ago, GVP-m voiced their
    interest in the NCR/Symbios Guru ROM, but I haven't heard
    from them since, and there simply aren't enough TekMagic
    cards out there to make it a worthwhile product for
    Ossowski's Schatztruhe to sell and support.

    Apparently the tekscsi2.device/gvpscsi2.device is broken like many others and does not support large drives; i.e. it wraps.

  4. According to Chris Smith of Software Hut, the SCSI controller on the TekMagic accelerator cards will not work with internal drives.

Help Requests

Note: If you're able to solve any of these problems, please let me know so I can post the solution here.

  1. Jean-Frederic Jacquelin (2060 user) is looking for help with installing Linux on his A2060-equipped A2000. If you can help, please contact him.
  2. Mike Pindzola (2060 user) would like to know if anyone has these problems:
  3. Mike Quinlan (2060 user) has the following problems:
  4. John Robertson (4060 user) would like to use his Umax 1220s scanner with his 4060. He describes the problem: "Michael Bourne and I have tried for many hours trying to get this to work with no success. The problem is that the machine locks up when the GVP board starts talking to the scanner on boot. All terms and cables are well within SCSI specifications. I have heard through Software Hut that Michael at GVP-m has fixed this problem for others but I have not been able to reach him since I bought my card. Is there a magic fix?"
  5. Sean Courtney (4060 user) asks for help: "Chris Smith recommended I put a CPU fan on the TekMagic board's 68060. I went to Radio Shack and found a Pentium fan that's the perfect size, but it has a special clip on it (a Ziff or something) that's not on the TekMagic board. If a fellow user can tell me where I can find a fan that will easily fit on it, or at least how to hot-glue or otherwise fit the same fan to the chip, I'd really be grateful!"