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QED.ZIP Drivers for OS/2 and DOS
QED5Z.ZIP QED/5Z-XXXX files (for 50Z?)
QED68.ZIP QED/68-XXXX standalone MCA IDE adapter files
Based on content by William R. Walsh (original HERE).
Quick Easy Disk Adapter - Front
U1 Lattice 20L8BNCS PAL
U2 TI 16L8 PAL -15
U3 74HCTLS174N
U4 74HCTLS174N
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U5 Lattice PAL 16L8BCN PAL
U6 74HCTLS245N
U7 74HCTLS245N
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Grey items are populated on the reverse side of the adapter. P2 is the
"floppy disk A" connector and is the standard "edgecard" type.
Quick Easy Disk Adapter - Back
J1 IDE Connector
P2 Reverse of floppy connector
P3 Power connector
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P4 DBA-ESDI connector
JP1,2 Unknown
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Caution! The Model 70 power supply does not have
an overabundance of capacity. DO NOT use a high power draw drive with
this adapter. Stay under 500mA on both +5 and +12V if you can. Remember, this
adapter supplements your DBA-ESDI drive... so it is still drawing power, along
with any optional memory cards, NICs, CPU upgrades or video cards you may have
installed. With only 132 watts of power available at best, it might not take
long to get into trouble with your power supply or planar.
The hard disk included with mine is marked as a "Quick Easy Disk Part #
QED70/120, S/N 10046" It is a Maxtor 3.5" 7120AT IDE hard disk.
This is a real simple IDE adapter. I doubt very much that it is
bootable. There is no onboard ROM and it does not have a card-ID. The computer
it is installed in boots into OS/2 Warp 3 and loads a Sigma Data supplied
device driver to allow access to the drive. At this time, the computer locks up
when trying to initialize the drive. I have not yet determined if this is a
problem with the drive itself or the controller board. For now, bypassing the
device driver works although I cannot use the drive that way.
This is probably supported under DOS, Win 3.x and OS/2 only--not for Win95
or NT, as usual... Ah well...
Sigma Data Today
Sigma Data is still around. They sell assorted hard disk and memory upgrades
these days. Most of their current product lineup looks to be ThinkPad
oriented.Their support site does have files for nearly all of their products.
Believe it or not, this includes the QED adapter.
Ed. They are probably long gone, the website
went down at around Jun 2007
(archived
version).
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