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AGP warning LED
This LED (WARN1) is a smart protection from motherboard burn out
caused by an incorrect AGP card. If you plug in any 3.3V AGP card into
the 1.5V AGP slot, this LED lights up thus preventing the system to power
up. This LED remains off if you plug in a 1.5V AGP card.
CPU FSB/voltage LED
This LED (LED1) lights up if you installed two CPUs with different front
side bus (FSB), or if the CPU voltage is not stable.
CPU warning LED
This red LED (WARN_CPU1) lights up if:
•
there is no installed CPU on either one of the sockets
•
you installed a CPU on socket CPU2, but not on socket CPU1
(if installing only one CPU, you must install on socket CPU1)
•
you installed CPUs of different types, e.g. an Intel
with 800 MHz FSB and an Intel
(install identical CPUs, either two Intel
800 MHz FSB, or two Intel
NCCH-DL Warning LEDs
2-2
®
Xeon™ processor with 533 MHz FSB
®
Xeon™ processors with
®
Xeon™ processors with 533 MHz FSB)
WARN1
ON
Incorrect AGP Card
LED1
ON
CPU voltage not stable
CPU FSB not identical
WARN_CPU1
ON
No CPU installed
No CPU on socket CPU1
CPU types mismatched
Chapter 2: Hardware information
®
Xeon™ processor
OFF
Correct AGP Card
OFF
No detected CPU problem
OFF
No detected CPU problem
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