Compaq Mega-Post manual Dma

Appendix A

	blocking/unblocking command. CMOS initia- lization done(if any). CMOS status
	register about to Init for Date and Time. CMOS status register about to Init for Date
	and Time. Refresh on and about to start 64K base memory test. Confirmed refresh
	ON & about to start 64K memory.
AST	(10)DMA controller test 0 register
Award	(10)DMA channel 1 Test. Test DMA controller 1 with AA, 55,FF,00 pattern.8237
	DMA,channel 0 test.
Compaq	(10)PPI disabled, Program timers 0 & 1.
Chips & Tech (10)(Beeps)=19 short, IDT,GDT failure.				lize	8254
Phoenix&Dell (10)Initialize		Power	Management.(Beep)=1-2-1-1.Initia-
	timers.[Beep]=2-1-1 1st 64K RAM chip or data line failure-bit 0.
			Error Code - 11
AMI	(11)Pin23,24 of keyboard controller is blocked/unblocked. Going to check to check
	pressing of <INS>key during power-on.CMOS status register initialized. Going to
	disable DMA and Interrupt controllers. Going to disable DMA and interrupt controllers.
AST	Address line test passed. Address line test passed.
	(11)DMA controller test register 1.
Award	(11)DMA page register test. Test DMA page registers, use I/O ports to test address
	circuits. POST enables user reboot here. Test DMA page registers. FATAL DISPLAY ER-
	RORS.8237 DMA, channel 1 test.
Compaq	(11)Init(blast)VDU controllers.
Chips & Tech (11)Register LDT failure.
Phoenix&Dell (11)Load alternate registers with POST values.(Beep)=1-2- 2. 1st 64K RAM chip or
	data line failure-bit 1.		Error Code - 12
AMI	(12)Checking for pressing of <INS>key during power-on done. Going to disable
	DMA and Interrupt controllers.DMA controller#1,#2,interrupt controller#1,#2 disabled. About
	to disable Video display and Init port-B. About to disable video display and Init port-B.64K
	base memory test passed. 64K base memory test
AST	passed.
	(12)DMA page registers test.
Award	(12)Call support 800-909-3424. Test 8254 timer 0 channel 0. Test DMA page
	registers.
Compaq	(12)Clear screen, turn on video.
Chips & Tech (12)Task register failure.
Phoenix&Dell (12)Restore CPU control word during warm boot. Jump to User Path
	0.(Beep)=1-2-1-3.Test both 8237 DMA controllers. 1st 64K RAM chip or data line
	failure-bit 2.		Error Code - 13
AMI	(13)DMA controller#1,#2,interrupt controller#1,#2disa- bled. About to disable
	Video display and initialize port-B. Chipset initialize/auto memory detection about
	to begin. Replace first memory SIMM.(13)Chipset initialize/auto memory detection
AST	about to begin. Check first SIMM.(13) Interrupt vectors initialized.
	(13)Initialize video.
Award	(13)Test 8254 timer 0 channel 1. Test keyboard controller.
Compaq	(13)Test timer 0.
Chips & Tech (13)LSL instruction failure.
Phoenix&Dell [Beep]=2-1-4 1st 64K RAM chip or data line failure-bit 3. Initialize PCI Bus
	Mastering devices.		Error Code - 14
ACER	(14)DMA Controller.
AMI	(14)Chipset initialization/auto memory detection over. To un-compress the POST
	code if compressed BIOS.8254 timer test about to start.8254 timer test about to start.8042
AST	keyboard controller test OK.
	(14)Memory refresh test.
Award	(14)Test 8254 timer 0 counter 2. Test timer counter 2; Test 8254 timer 0 counter 2.
Compaq	Test memory refresh.
	(14)Disable RTC interrupts.
Chips & Tech (14)LAR failure.			controller.(Beep)=1-2-2-1.Initialize	8237	DMA
Phoenix&Dell (14)Initialize		keyboard
	controllers.[Beep]=2-2-1 1st 64K RAM chip or data line failure-bit 4.
			Error Code - 15
AMI	(15)POST code is un-compressed.8254 timer about to start. CH-2 timer test
	halfway.8254 CH-2 timer test to be complete.8254 CH-2 timer test to be completed. Interrupt
Award	vectors initialized. CMOS read/write test OK.
	(15)test 8259 interrupt mask bits for channel 1. Test 8259-1 mask bits; Verify 8259 channel 1
	masked interrupt by alternate turning off and on the interrupt line. Test
Compaq	1st 64K of system memory.
	(15)Check battery power.
			8