Locations And Settings Of Cmos/Rom Clear Jumpers - Contec IPC-BX800-DC400 User Manual

Locations and Settings of CMOS/ROM Clear
Jumpers
If an unexpected activation failure occurs due to the BIOS setting, the CMOS/ROM clear jumper can be
set in order to disable the BIOS setting and start up the system.
In the normal operation, leave the CMOS/ROM clear jumper to the factory setting (1-2 short).
CAUTION
The heat sink block of this product may be overheated. Touching the product immediately after it is
switched off may cause burning. When setting the jumper, let it cool completely beforehand.
(1) Remove the back cover and then remove the top heat sink.
JP3
Figure 4.21. Removal of Back Cover and Top Heat Sink and Locations of CMOS/ROM Clear
Jumpers
When the back cover is removed, the CMOS clear jumper (JP3) will appear, as shown in the above
figure.
When the top heat sink is removed, the ROM clear jumper (JP2) will appear, as shown in the above
figure.
(2) Set the CMOS clear jumper (JP3) to "2-3 short". When about ten seconds have elapsed, set it back
to "1-2 short".
(3) Set the ROM clear jumper (JP2) to "2-3 short".
(4) Mount the top heat sink and back cover in the reverse procedure of removing them.
Do not tighten screws with excess force. The tightening torque should be 4kg/cm or less.
(5) Start the BIOS setup screen for resetting.
(6) Follow the procedure in (1), and then put the ROM clear jumper (JP2) back to "1-2 short".
(7) Follow the procedure in (4).
CAUTION
Screw holes may be damaged if screws are tightened with a torque greater than the specified torque.
IPC-BX800 Series User's Manual
4. BIOS Setup
JP2
37