Intel SE7525GP2 Product Specification - Page 148
Diagnostic LED Decoder, G=Green, R=Red, A=Amber, Checkpoint, Description
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Error Reporting and Handling Intel® Server Boards SE7320SP2 and SE7525GP2 Checkpoint 2C 2E 31 33 37 38 39 3A 3B 3C 40 50 52 60 75 78 7A 7C 84 85 87 8C 8D 8E 90 A0 A1 A2 A4 Diagnostic LED Decoder G=Green, R=Red, A=Amber MSB LSB G G R OFF G G A OFF OFF OFF R A OFF OFF A A OFF G A A G OFF R R G OFF R A G OFF A R G OFF R A G G R R OFF R OFF OFF OFF R OFF R OFF OFF OFF G G G R R R A A A R R R R G R R R OFF A R A R R R R A R A R R G OFF OFF G OFF G G G G G OFF OFF G OFF G G G OFF OFF OFF OFF OFF R R R OFF G R OFF A OFF R G R OFF Description Initializes different devices. Detects and initializes the video adapter installed in the system that have optional ROMs. Initializes all the output devices. Allocate memory for ADM module and uncompress it. Give control to ADM module for initialization. Initialize language and font modules for ADM. Activate ADM module. Initializes the silent boot module. Set the window for displaying text information. Displaying sign-on message, CPU information, setup key message, and any OEM specific information. Initializes different devices through DIM. See DIM Code Checkpoints section of document for more information. Initializes DMAC-1 and DMAC-2. Initialize RTC date/time. Test for total memory installed in the system. Also, Check for DEL or ESC keys to limit memory test. Display total memory in the system. Mid POST initialization of chipset registers. Detect different devices (Parallel ports, serial ports, and coprocessor in CPU, ... etc.) successfully installed in the system and update the BDA, EBDA...etc. Programming the memory hole or any kind of implementation that needs an adjustment in system RAM size if needed. Updates CMOS memory size from memory found in memory test. Allocates memory for Extended BIOS Data Area from base memory. Initializes NUM-LOCK status and programs the KBD typematic rate. Initialize Int-13 and prepare for IPL detection. Initializes IPL devices controlled by BIOS and option ROMs. Initializes remaining option ROMs. Generate and write contents of ESCD in NVRam. Log errors encountered during POST. Display errors to the user and gets the user response for error. Execute BIOS setup if needed / requested. Late POST initialization of chipset registers. Build ACPI tables (if ACPI is supported) Program the peripheral parameters. Enable / disable NMI as selected Late POST initialization of system management interrupt. Check boot password if installed. Clean-up work needed before booting to operating system. Takes care of runtime image preparation for different BIOS modules. Fill the free area in F000h segment with 0FFh. Initializes the Microsoft IRQ Routing Table. Prepares the runtime language module. Disables the system configuration display if needed. Initialize runtime language module. 136 Revision 4.0