Boca Research Turbo Series - Manual (Page 29)

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SYMPTOM POSSIBLE REMEDY
• In general, IRQ4 belongs to COM1.
IRQ3 belongs to COM2. COM3 and
COM4 can be set to IRQ5-7, 10-12, or
11-15. It is best to put an interrupt-
driven device on COM1 or 2 (e.g., a
mouse).
• The IRQ settings in your software must
match the settings in Windows 95
Device Manager.
• Verify that the external device is
capable of those speeds.
• Make sure the board is set to high-
speed mode with the J12 jumper.
• Check the Windows 98/95 Device
Manager and make sure the port is set
for high-speed by clicking “Boca IO
Adapter” in Device Manager. These
settings must not conflict with any
other hardware.
• The diagnostics program used must be
capable of testing 650 UARTS. Most
diagnostics programs can test only 450
and 550 UARTs.
I am not sure how to I am not sure how to I am not sure how to I am not sure how to I am not sure how to
set the IRQs.
set the IRQs. set the IRQs. set the IRQs. set the IRQs.
No response when No response when No response when No response when No response when
working at speeds
working at speeds working at speeds working at speeds working at speeds
exceeding 1
exceeding 1 exceeding 1 exceeding 1 exceeding 115Kbps. 15Kbps. 15Kbps. 15Kbps. 15Kbps.
The board will not The board will not The board will not The board will not The board will not
work in high-speed
work in high-speed work in high-speed work in high-speed work in high-speed
mode.
mode. mode. mode. mode.
Diagnostic programs Diagnostic programs Diagnostic programs Diagnostic programs Diagnostic programs
such as Checkit
such as Checkit such as Checkit such as Checkit such as Checkit
report failures on
report failures on report failures on report failures on report failures on
serial ports or wrong
serial ports or wrong serial ports or wrong serial ports or wrong serial ports or wrong
UAR
UAR UAR UAR UART speed. T speed. T speed. T speed. T speed.
Troubleshooting
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