Epson EL 4S/33+

Software Problems

Information Reference List

When installing a copy-protected software package, first try the installation at high speed. If this does not work properly, select low speed by pressing the Ctrl and Alt keys and the - key on the numeric keypad simultaneously. Try loading the program at low speed and then switching to high speed, if possible.

When using a software package that uses a key disk as its copy-protection method, try loading it at high speed. If this does not work, load it at low speed.

Installing Option Cards

Although the EL 4S/33+ will support most full-length option cards, option cards with an I/F connector on the back may not fit into the option slot.

Make sum the power requirements of the option cards you install do not exceed the power supply limitations.

If the computer locks up, the power supply may be overloaded. On a system with three or more option cards, the installation of a second hard disk drive may overload the power supply.

If you are installing a video adapter card, make sure you disable the built-in VGA by changing jumpers J7, J8, and J9 to the Off position.

Engineering Change Notices
None.
Technical Information Bulletins

None.

Product Support Bulletins

None.

Related Documentation

TM-EL3/4S33Epson EL 3S/33 and 4S/33 Service Manual
EL4S33+ADD Epson EL 4S/33+ Service Manual Addendum
PL-EL4S33+ Epson EL 4S/33+ Parts Price List
400275000 Epson EL 4S/33+ User’s Guide

COM Port Assignment

If you want to assign COM1 as COM3, you must set jumper J24 to position 2-3. If you want to assign COM2 as COM4, you must set jumper J26 to position 2-3.

System Problems

QDo not attempt to install OS/2, version 2.1, from CD-ROM.
0Do not use this computer as a server in a multi-LAN environment.

0When using SCO UNIX, the CMOS settings may be lost when you boot the system. Also, keyboard input is not accepted unless the Cyrix cache is disabled or the slow refresh is set.

0You cannot use an external hard disk drive with this computer.

QWhen an extended memory test is run on QAFE, the system hangs. This is a problem with the way QAFE handles Cyrix memory.

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