Group1 group2 group3 group4 – Nvidia MS-7374 User Manual

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M S-7374 M ainboard

LED 4, 5, 6, 7, 8, 9, 10, 11

These four LEDs allow users to identify system problems through 16 various combi-
nations of LED signals.

BIOS Sign On
This will start showing information
about logo, processor brand name,
etc...

Testing Base and Extended Memory
Testing base memory from 240K to
640K and extended memory above
1MB using various patterns.

Assign Resources to all ISA.

Initializing Hard Drive Controller
This will initialize IDE drive and
controller.

Initializing Floppy Drive Controller
This will initialize Floppy Drive and
controller.

Boot Attempt
This will set low stack and boot via
INT 19h.

Operating System Booting

System Power ON
The D-LED will hang here if the
processor is damaged or not in-
stalled properly.

Initializing Keyboard Controller.

Testing VGA BIOS
This will start writing VGA sign-on
message to the screen.

Processor Initialization
This will show information regarding
the processor (like brand name, sys-
tem bus, etc...)

Testing RTC (Real Time Clock)

Description

Red

Green

LED Signal

Description

LED Signal

Early Chipset Initialization

Memory Detection Test
Testing onboard memory size. The
D-LED will hang if the memory mod-
ule is damaged or not installed
properly.

Decompressing BIOS image to RAM
for fast booting.

Initializing Video Interface
This will start detecting CPU clock,
checking type of video onboard. Then,
detect and initialize the video adapter.

LED4
LED5
LED6
LED7
LED8
LED9
LED10
LED11

Group1

Group2

Group3

Group4

Group4
Group3
Group2
Group1