Installing the Motherboard
User’s Manual
2-9
Caution
If the power supply connectors are not properly attached to the ATX power supply, the power supply
or add-on cards may be damaged.
One end of AC power core connects to ATX power supply, and the other end (AC plug) will plug into
the wall outlet. Be aware that when facing the wall outlet, the round hole is in the middle. The right
side slot is called ground wire slot. It has a longer slot length than the left side slot. The left side slot is
called the live wire slot. You can use an electroscope to detect its polarity or you can use a voltage
meter to measure the voltage of both slot sides. If you insert an electroscope into the live wire slot, the
electroscope will light up. Using a voltage meter, you will find that the live wire slot will register a
higher voltage.
If you reverse the polarity of AC plug, it may affect the life of computer equipment, or cause an
electric shock when you touch the computer chassis. We suggest that you plug the computer AC plug
to a three-hole wall outlet for better safety and to avoid electric shock.
(2). FAN1, FAN2, FAN3, FAN4 & FAN5 header
Attach the connector from the CPU fan to the header
named FAN1 ond connector from the chassis fan to
the header FAN2 (These two fan headers have a
sense signal that can detect fan rotation speeds) or
FAN4 and attach the connector from the power fan to
FAN3 header. FAN5 is for the northbridge chipset
fan.
You must attach the CPU fan to the processor, or
your processor will work abnormally or may be
damaged by overheating. To prevent the computer
chassis internal temperature from getting too high,
also connect the chassis fan.
Note:
Watch the pin position and the orientation
(3). IR1: IR Header (Infrared)
There is a specific orientation for pins 1 through 5,
attach the connector from the IR KIT or IR device to
the IR1 header. This motherboard supports standard
IR transfer rates.
Note:
Watch the pin position and the orientation
Summary of Contents for KR7A
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Page 10: ...Chapter 1 KR7A KR7A RAID 1 6 ...
Page 28: ...Chapter 2 KR7A KR7A RAID 2 18 ...
Page 78: ...6 4 Chapter 6 KR7A KR7A RAID ...
Page 84: ...A 6 Appendix A KR7A KR7A RAID ...
Page 90: ...B 6 Appendix B KR7A KR7A RAID ...
Page 104: ...E 4 Appendix E KR7A KR7A RAID ...