User's Guide Mega-Post PCI-Diagnostic Card User's Guide 1
User's Guide INTRODUCTION The Mega-Post PCI-Diagnostic Card is a powerful diagnostic tool for technicians and administrators to troubleshoot various problems of IBM compatible PCs. It is easy to install, yet extremely powerful to use. With Diagnostic Card in hand, you no longer have to go through tedious and time consuming process of trying to figure out what is wrong with your PC hardware. The Mega-Post PCI-Diagnostic Card will tell you exactly what is wrong with your PC in just seconds.
User's Guide Power On Self-Test (POST) Codes Most AT and 386 computers (and a few XT computers) output status codes during POST. The Diagnostic Card displays these codes during and after POST. Refer to Appendix A for a comprehensive listing of POST codes provided by BIOS manufacturers. PCI Signal Definition: Motherboard Clock Signal. Should be on when power is supplied to the CLK motherboard even without CPU. BIOS BIOS Read Signal. Flashes when CPU reads BIOS code. IRDY Device Ready.
User's Guide POST Codes When the machine is turned on, the hexadecimal display should show the various POST codes as the system executes (unless it has a rare BIOS that does not display POST codes). If the machine does not boot, system POST has detected a fatal fault and stopped. The number showing in the hexadecimal display on the Diagnostic Card is the number of the test in which POST failed. Refer to Appendix A for a listing of POST codes.
Appendix A AMI AMI Award Phoenix AMI AST Award Chips&Tech Dell Phoenix Phoenix AMI AST Award Error Code-00 (00)Going to give control to INT 19H boot loader. Error Code-01 (01)Processor register test about to start, and NMI to be disabled,286 reg. test about to start. (01)Processor test 1;Processor status(1FLAGS) verification; Tests the following processor status flags carry, zero, sign, overflow. The BIOS will set each of these flags, verify they are set then turn each flag off and verify it is off.
Appendix A Error Code - 06 (06)ROM is enabled. Calculating ROM BIOS checksum, and waiting for Keyboard controller input buffer to be free. Calculating ROM BIOS checksum.. Video disabled and sysAMI tem timer test begin Video disabled and system timer counting OK. AST (06)Support chipset initialize. (06)Test memory refresh toggle; RAM must be periodically refreshed in-order to Award keep the memory from decaying. This function assures that the memory refresh function is working properly. Initialize chips.
Appendix A Phoenix&Dell (0A)Initialize CPU registers. (Beep)=1-1-3-3. Perform BIOS checksum test. 1st 64K RAM chip or data line failure multi-bit. Error Code - 0B AMI CMOS status register initialize done. Keyboard controller command byte is written. Going to issue Pin-23,24 block- ing/ unblocking command. Going to issue pin-23,24 blocking/ nubolcking command. Refresh started. Parity status cleared Award (0B)Verify the RTC time is valid or not. Detect bad battery. Read CMOS data into BIOS stack area.
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. (10)DMA controller test 0 register AST (10)DMA channel 1 Test. Test DMA controller 1 with AA, 55,FF,00 pattern.8237 Award DMA,channel 0 test. (10)PPI disabled, Program timers 0 & 1.
Appendix A Chips & Tech (15)VERW/VERR failure. Phoenix&Dell (15)[Beep]=2-2-2 1st 64K RAM chip or data line failure-bit 5. Error Code - 16 AMI (16)CH-2 timer test over.8254 CH-1 timer test to be complete. CMOS checksum/battery check OK (16)Test 8259-2 mask bits; Verify 8259 channel 2 masked interrupt by alternate Award turning off and on the interrupt line. Setup Interrupt vectors. (16)Battery power was lost. Compaq Chips & Tech (16)Keyboard controller gate A20 failure.
Appendix A (1E)Select memory type. (1E)Global equipment byte set for proper display type. (1E)If EISA NVM checksum is good, execute EISA initialization(EISA BIOS ONLY). Size system memory. (1E)Test keyboard controller. Compaq Phoenix&Dell (1E)[Beep]=2-4-3 1st 64K RAM chip or data line failure- bit E.Base 64K RAM test(16 bits). Error Code - 1F AMI (1F)Video mode set call for mono/color begins. Mode set call for mono/color OK.
Appendix A setting video mode to be done next. (27)Enable slots 7; Initialize slot 7.Setup cache control or shadow RAM. Award Compaq (27)initialize parallel printer. Phoenix&Dell (27)[Beep]=3-2-4 keyboard controller test in-progress or failure. Error Code - 28 ACER (28)Test CPU. (28)initialization before setting video mode is complete. Going for monochrome AMI mode and color setting .Check extended memory. (28)Enable slots 8;Initialize slot 8. Setup 8242.
Appendix A (30)Get base memory & extended memory size. Size base And extended memory from 256K to 640K and extended memory above 1MB. (30)Clear 1st 128K bytes of RAM. Compaq (30)[beep]=none screen believed running w/video ROM. Dell (30)see Error Code "2C".Unexpected shutdown.[Beep]=no- ne screen believed operable. Phoenix [Beep]=none screen believed running w/video ROM. Error Code - 31 (31)Display memory R/W test or retrace checking failed. About to do alternate AMI Display memory R/W test.
Appendix A (39)New cursor position read and saved. Going go display the Hitmessage. Memory above 1MB initialized. (39)Check for parallel ports. Compaq (39)Reinitialize the cache.(Beep)=1-4-3-1 Phoenix Error Code - 3A (3A)Check memory, first 64K,one long beep. Reference string display is over. AMI Going to display the Hit massage. Memory size display initiated. This will be updated when the BIOS goes through the memory. (3A)Check memory. Award (3A)Initialize Port. And comm. timeouts.
Appendix A AMI Award Compaq Phoenix ACER AMI Award Compaq Phoenix ACER AMI Award Compaq Phoenix AMI Award Compaq Phoenix ACER AMI Phoenix AMI Phoenix AMI Phoenix AMI Phoenix ACER AMI Phoenix AMI AMI Award Phoenix AMI Award ACER AMI (44)Interrupts enabled(if post switch is on). Going to initialize data to check memory wrap around at 0:0. (44) Going to initialize data to check memory re-map at 0:0. (44)Start verify cycle if 128K RAM test. (44)Initialize BIOS interrupts.(Beep)=2-1-2-1.
Appendix A memory size for relocation /shadow. DMA page register test complete. (50)Protected mode. (50)Write all the CMOS values currently in the BIOS stack areas back into the CMOS. Write CMOS; Write all CMOS values back to RAM and clear screen. (50)Check for dual freq in CMOS. Compaq Chips & Tech (50)Hardware initialize. (50)Display CPU type and speed.(Beep)=2-2-1-1.(50)Per- form LSL instruction Phoenix test.[Beep]=none Custom chip set or custom platform.
Appendix A (59)Hit message cleared. message displayed. About to start DMA and interrupt controller test. Master 8259 mask register OK, about to start slave. (59)Check existence of adapter. Compaq Chips & Tech (59)Exiting protected mode. Phoenix (59)Initialize POST display service. Error Code - 5A AMI (5A)About to check timer and keyboard interrupt level. Compaq (5A)Blank display, check VDU registers. Chips & Tech (5A)Board memory size. test.
Appendix A Chips & Tech (63)Protected mode interrupt. Error Code - 64 (64)Start test real time clock. (64)BIOS ROM data area check halfway. BIOS ROM data area check to be complete. AST (64)Copy BIOS to shadow RAM. Compaq (64)Start test of real memory. Chips & Tech (64)Address line A20. (64)Jump to User Patch 1.(Beep)=2-3-2-1.Shadow memory test. Phoenix Error Code - 65 (65)DMA #2 base register test passed. About to program DMA unit 1 and 2. (65)Copy AMI AST video BIOS to shadow RAM.
Appendix A Chips & Tech (71)Key-lock. Error Code - 72 AMI (72)Keyboard interface test over, mouse interface test started. Compaq (72)High order address test. Chips & Tech (72)Pointing divide. Phoenix (72)Check for configuration errors.(Beep)=2-4-1-3.(72) Real time clock test. Error Code - 73 AMI (73)Global data initialization for keyboard/mouse over. Compaq (73)Exit memory test. Error Code - 74 ACER (74)About to test serial port. (74)Display 'SETUP' prompt and about to start floppy setup.
Appendix A AMI Compaq Phoenix AMI Compaq Phoenix ACER AMI Compaq Phoenix AMI Phoenix AMI Compaq Phoenix AMI Compaq Phoenix ACER AMI Compaq Phoenix AMI Compaq Phoenix AMI Compaq Phoenix AMI Compaq Phoenix ACER AMI Compaq Phoenix AMI Compaq AMI Phoenix AMI Phoenix ACER AMI (82)Keyboard controller interface test over. About to write command byte and Init circular buffer. Check for printer ports and put the addresses in global data area. (82)Check result received. (82)Detect and install external RS232 ports.
Appendix A Compaq (90)Start of CMOS test . Chips & Tech (90)Set-up RAM. (90)Initialize hard-disk controller.(Beep)=3-2-1-1 Phoenix Error Code - 91 (91)Floppy setup complete. Hard disk setup to be done next. AMI Compaq (91)CMOS seems to be OK. Chips & Tech (91)CPU speed. Phoenix (91)Initialize local-bus hard-disk controller.(Beep)=3-2-1-2 Error Code - 92 AMI (92)Hard disk setup complete. About to go for BIOS ROM data area check. (92)Error Compaq on CMOS read/write test. Chips & Tech (92)Configuration check.
Appendix A AMI Phoenix AMI Phoenix AMI Compaq Phoenix AMI Compaq AMI Compaq Phoenix AMI Compaq AMI Compaq Phoenix AMI Compaq AMI Compaq AMI AMI Compaq Phoenix AMI Compaq AMI Compaq Phoenix Phoenix Phoenix Compaq AMI Award Compaq Phoenix AMI Award Compaq Compaq Phoenix Compaq Compaq Phoenix (9E)Initialization after CoProcessor test is complete. Going to check expander keyboard, keyboard ID and number-lock. (9E)Enable hardware interrupts.(Beep)=3-2-4-3.
Appendix A Compaq Phoenix (B5)Drive error(error condition). (B5)terminate Quiet-Boot(optional) Error Code - B6 (B6)Drive failed(failed to respond). (B6)Check password(optional).(Beep)=3-4-2-3 Error Code - B7-BD Compaq (B7)CMOS RAM invalid or no fixed drives, exit. Compaq (B8)Fixed drive tests complete. Phoenix (B8)Clear global descriptor table.(Beep)=3-4-3-4 Compaq (B9)Attempt to boot diskette. Phoenix (B9)Prepare boot. Compaq (BA)Attempt to boot fixed drive. (BA)Initialize DMI parameters.
Appendix A AMI Award AMI AMI AMI Compaq Phoenix AMI Compaq AMI Compaq Phoenix AMI Compaq AMI Compaq Phoenix AMI Phoenix AMI Compaq Phoenix Compaq Phoenix Compaq Phoenix Compaq Phoenix Phoenix Award Phoenix Phoenix Phoenix Award (CB)CMOS status register Init done. Any initialization before keyboard BAT to be done next. (CC)NMI handler shutdown. Error Code - CD-CF (CD)BAT command to keyboard controller is to be issued. (CE)Keyboard controller BAT result verified. Any initialization after KB controller.
