MSI K9N2G User Guide - Page 33
D-Bracket, Connector: JDB1
UPC - 816909045710
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Hardware Setup D-Bracket™ 2 Connector: JDB1 This connector is for you to connect to the D-Bracket™2 which integrates four LEDs and USB ports. It allows users to identify system problems through 16 various combinations of LED signals. D-Bracket™ 2 (Optional) 1 2 DBG1 DBR1 DBG2 DBR2 DBG3 DBR3 DBG4 DBR4 Key NC 9 10 Connected to USB connector Connected to JDB1 Red Green LED Signal 1 2 3 4 Description System Power ON The D-LED will hang here if the processor is damaged or not installed properly. LED Signal Description Initializing Video Interface 1 2 This will start detecting CPU clock, 3 4 checking type ofvideo onboard. Then, detect and initializethe video adapter. 1 2 EarlyChipset Initialization 3 4 BIOS Sign On 1 2 This will start showing information 3 4 about logo, processor brand name, etc... Memory Detection Test Testing Base and Extended Memory 1 2 Testing onboard memory size. The 1 2 Testing base memory from 240K to 3 D-LED will hang if the memory mod4 ule is damaged or not installed 3 4 640K and extended memory above 1MB using various patterns. properly. 1 2 Decompressing BIOS image to RAM 1 2 Assign Resources to all ISA. 3 4 for fast booting. 3 4 1 2 Initializing Keyboard Controller. 1 2 Initializing Hard Drive Controller This will initialize IDE drive and 3 4 3 4 controller. 1 2 Testing VGA BIOS 1 2 Initializing Floppy Drive Controller This will start writing VGA sign-on This will initialize Floppy Drive and 3 4 message to the screen. 3 4 controller. 1 Processor Initialization 2 This will show information regarding 1 2 BootAttempt This will set low stack and boot via 3 4 the processor (like brand name, sys- 3 4 INT 19h. tem bus, etc...) 1 2 1 2 Testing RTC (Real Time Clock) Operating System Booting 3 4 3 4 2-19