
Appendix A
14
Memory above 1MB initialized.
(39)Check for parallel ports.
(39)Reinitialize the cache.(Beep)=1
ry, first 64K,one long beep. Reference string display is over.
Going to display the Hit<ESC> massage. Memory size display initiated. This will
be updated when the BIOS goes through the memory.
(3A)Initialize Port. And comm.
3 Interval timer channel 2 test in progress or failure.
(3b)Hit<DEL>or<ESC>message displayed. Virtual mode memory test about to
start, About to start below 1MB memory test.
(3B)Flush keyboard buffer.
Day clock test in progress or failure.
(3C)Memory test below 1MB completed and about to st
(3C)Set flag to allow users to enter CMOS setup utility. Setup enabled.
(3C)Configure advanced chipset registers.(Beep)=1
1. Determine relative CPU
2 Serial port test in progress o
(3D)Memory test above 1MB completed.
(3D)Initialize keyboard. Install PS/2 mouse. Initialize & install mouse; Detect if
mouse is present, initialize mouse, install interrupt vectors.
isters with CMOS values,(Beep)= 1
2 Parallel port test in progress or failure.
(3E)About to go to real mode(shutdown).
(3E)Try to turn on level 2 cache.,
3 Math CoProcessor test in progress or failure.
(3F)Shutdown successful and Processor in real mode.
(3F)Enable shadow RAM per CMOS RAM setup or if ME
(3F)Cache memory failure.
(40)Preparation for virtual mode test started. Going to verify from video memory.
CACHE memory on and about to disable A20 address line.
(40)Display virus protest disable or enable.
(40)Set initial CPU speed.(Beep)=2
(41)Returned after verifying from display memory. Going to prepare the descriptor
.A20 address line disabled successful.
(41)Initialize floppy disk drive controller.
(42)descriptor tables prepared. Going to enter in virtual mode for memory test.486
internal cache turned on. About to start DMA controller test.
(42)Initialize hard drive & controller; Initialize hard drive controller and any drives.
(42)Start write cycle of 128K RAM test.
nterrupt vectors.(Beep)=2
(43)Entered in the virtual mode. Going to enable interrupts for diagnostics mode.
About to start DMA controller test.
(43)If it is a PnP BIOS, initialize serial & parallel ports. Detect & initi
serial/parallel ports; Initialize any serial and parallel ports (also game port).
(44)Video BIOS ROM initialize.
(44)Interrupts enabled(if post switch is on). Going to initialize data to c
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