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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Documentation

T-Rex I 4040 | T-Rex II 4060(DT) | TekMagic 2060 | QuikPak A4000T-060/040 and A4000-060-040 XP (Revs. 1,2) Manuals

T-Rex I 4040

Many thanks to eBay seller vannysue_6 for sending me photos (Page 1 | Page 2 | Page 3 | Page 4) of this hard-to-find A4000 G-Force 040 User's Guide Addendum on April 30, 2021. If you have any other original A4000 G-Force 040 / T-Rex I 4040 documentation not available here, please e-mail me.


(PDF: 706,595 bytes)

The GVP T-Rex Rev 4 (A4040 / T-Rex I) has two connectors for expansion (six SIMM32 memory expansion, and SCSI—the latter never produced).

It uses two GVP SIMM32s: 4 MB or 16 MB modules on-card.

A 68040 CPU clocked at 25, 33, or 40 MHz.

The onboard clock uses PLL to double the frequency.

Jumper under clock/FlashLogic chip:
JR6: Reserved - Default 2/3
Pins across bottom of card below CPU:
JP8: Reserved - Default = Off
JP7: Burst Mode - On = Enable, Off = Disable
JP3: Reserved - Default = Off
JP2: Reserved - Default = Off
JP1: Reserved - Default = Off
JR5: Reserved - Default = Off
JR4: Reserved - Default = Off
JR3: SIMM Size - On = 16 MB SIMM32, Off = 4 MB SIMM32
JR2: Burst Reads - Default = On
JR1: Burst Writes - Default = On
Left side neat connector:
JP4: Startup Mode - On = Motherboard CPU Present (i.e. A3000), Off = No Motherboard CPU (i.e. A4000D Rev. B)
JP5: Reserved - Default Off
JP6: 4040 Board Enable - On = Disable (Motherboard CPU), Off = 4040 CPU Active

CN6: Fan (cooler) power (5V)

Settings above are the default for the 40 MHz model. No information is available on any reserved jumpers, or variations for other clock speeds.

[Source: Overclocking the GVP 4040 TREX-1. Thanks to Robert Miranda for sending this info.]

T-Rex II 4060(DT)

Apart from jumper information, there is apparently no known official manual for the T-Rex II card. However, if you have any other original T-Rex II 4060DT documentation not available here, please e-mail me.

Many thanks to eBay seller vannysue_6 for sending me photos (Page 1 | Page 2 | Page 3 | Page 4 | Silkscreen/Jumpers Closeup) of the following hard-to-find documentation, including a closeup of the silkscreen with the jumpers layout (posted April 30, 2021).


(PDF: 5,012,796 bytes)

Note that JR4 on page 3 appears to have a typo; the title says "Burst Write Enabled", but it apparently should read "Burst Read Enabled" to match the setting text below it. This has been corrected in the PDF version.

TekMagic 2060

Many thanks to Michael Rozeboom for contributing the complete documentation for the GVP A2060 (available below). I (Greg Donner) digitally reconstructed it in May of 2019 for better quality/clarity.


(PDF: 345,486 bytes)

QuikPak A4000T-060/040 and A4000-060-040 XP (Revs. 1,2) Manuals

The T-Rex II 4060's designer, Jeff Boyer, also designed the QuikPak A4000T-060/040 and A4000-060-040 XP (Revs. 1, 2) accelerators. The digitally-reconstructed manuals of these 'cousins' are available here:


QuikPak A4000T-060/040
(PDF: 252,794 bytes)

Quikpak A4000-060-040 XP (1,2)
(PDF: 165,835 bytes)