股神巴非特

Award BIOS 自我測試Post Code

最近接到一堆無法開機、也沒有螢幕顯示的主機板，剛好想到以前從事維修工作時，有使用過Debug卡（除錯卡）的經驗，所以就買了一片來用，有興趣的人可以看看：http://search.ruten.com.tw/search/s000.php?searchfrom=searchbar&k=除錯卡&t=0

除錯卡的原理是源自BIOS的開機自我檢測碼，BIOS在開機時，會進行一連串的自我檢測，並將檢測代碼傳至Int80，而『除錯卡』就是擷取Int80的訊號顯示在Led上，供除錯人員得知目前在檢測什麼部分，若順利完成開機的話，通常會跳到FF碼，若某部分一直跳不過去，則除錯卡就會停在目前檢測的代碼上面，我們就很容易可以透過代碼知道主機板是哪部分出了問題。
通常除錯卡會附手冊，現在的除錯卡應該都是大陸製，說明書為簡體，看不懂簡體字的人可能會很頭痛，其實就算我看簡體字沒有問題，看那個說明書還是很吃力，因為不是漏碼就是代碼與實際問題相差甚遠，只好在網路上找BIOS的Post Code來研究了。

下面會蒐集一些Post Code在這篇文章裡面，提供給有需要的朋友一起分享，若有主機板使用除錯卡的心得，也歡迎在此頁分享一下，提供給眾主機板苦主。


以下轉貼自：http://www.xtremesystems.org/forums/showthread.php?t=190952
Award & Intel Debug Codes:

The most common Debug codes, what they mean, and how to work with them.
This Guide is intended for the Foxconn Blackops board, but the codes should be identical or very similar on all Mainboards with Award BIOSes.
If your problem isnt described in this list or the tips listed here dont help you, send a private message to Lardarse or me, or contact the Foxconn tech support. Before you do so, please search the foxconn section here on xs to see if anybody else has the same or a similar problem and post in that topic/thread or open your own topic/thread.

no LED all fans spinning
If the Board powers on with all fans spinning and all LEDs running but the DEBUG display doesnt display any POST codes and nothing else happens, then the PWM probably cant get enough juice. Check if the 8Pin 12V plug and the 24Pin ATX PSU power plugs are plugged in properly, make sure they dont bend too much or haven a lose cable. Check another PSU if possible. If nothing helps, power off the mainboard, remove both BIOS chips and wait a few minutes, then put them back in and power the mainboard on again. Make sure the BIOS chips are seated the right way around, the marks on the chips should face downwards.

FF then reboot
If the Motherboards powers on, displays FF for a couple of seconds with all fans spinning and the LEDs working and then restarts, the Motherboard is trying to detect the BIOS and read from it. This sometimes happens randomly when overclocking the mainboard, but if it happens several times in a row make sure the BIOS chips are seated properly and the right way around, the mark on the BIOS chip needs to face downwards. Another possible problem is that the BIOS is messed up as a result of a too high overclock or a bad BIOS flash. Power off the mainboard, remove both BIOS chips and wait a few minutes, then put them back in and power the mainboard on again. Switch the BIOS chips around or change the BIOS select jumpers to boot from the other BIOS chip in case the initial one is corrupted.
Note that the FF code is also used by the memory configuration and testing procedure, check the POST Code description for A0 and following for details

FF hangs with all fans spinning
If the Board powers on with all fans spinning and all LEDs running and the DEBUG Display hangs at FF, then the board is either working fine but you cant see it, or the boards BIOS is messed up. First hit the Num Lock and CAPSLOCK keys on your keyboard and check if the respective LEDs on your Keyboard turn on and off when hitting them.
Note that the FF code is also used by the memory configuration and testing procedure, check the POST Code description for A0 and following for details

A) If they do, then the System is working but you cant see anything on the display for some reason. Check if there is something wrong with the Videocard, the PCIE slot or BUS, the Monitor or monitor cable. Turn the Monitor on and off, switch the Monitor cable from one D-SUB or DVI plug to the other in case your Videocard has two. If this doesnt help then reboot and load the optimized defaults. If that doesnt help either try another Videocard if possible, or try the Videocard in another system to make sure its working properly. Try another monitor or try the Monitor on another System.

B) If they dont, then the System is stuck at the very early initializaton phase. This could mean that the BIOS is messed up or there is something wrong with the Mainboard or CPU. Turn off the board, remove both BIOS chips for a few minutes, then put them back and power the board on again. Switch the BIOS chips around or change the BIOS select jumpers to boot from the other BIOS chip in case the initial one is corrupted. If this doesnt help either contact me or Lardarse of the Foxconn tech support.
If this didnt help then make sure the CPU isnt missing , is seated properly and not damaged. Check the CPU in another board or check another CPU in this board to make sure the CPU is fine. Check if the cpu is seated properly and the pads and pins are clean and make good contact with each other, and make sure the socket is fastened well and the heatsink is seated properly.

FF with beeping
If the Mainboard powers on with all fans spinning and all LEDs running, but the Debug LED shows FF and you hear some beep codes, check if there is something wrong with the Videocard, the PCIE slot or BUS, the Monitor or monitor cable. Turn the Monitor on and off, switch the Monitor cable from one D-SUB or DVI plug to the other in case your Videocard has two. If this doesnt help then reboot and load the optimized defaults. If that doesnt help either try another Videocard if possible, or try the Videocard in another system to make sure its working properly. Try another monitor or try the Monitor on another System.
Note that the FF code is also used by the memory configuration and testing procedure, check the POST Code description for A0 and following for details

2b
When the system powers on and the Debug LED shows the usual POST code sequence but hangs on 2b or you get a beep code as soon as the sequence reaches 2b, then the Mainboard cant detect your Videocard properly. Note that the POST code sequence might not halt at 2b but continue, so the final POST Code it displays could be FF, 1E or 7F which means the Maiboard booted, entered BIOS, or OC recovery kicked in and is waiting for Input to enter BIOS. Since the Videocard couldnt be detected properly you will only see a black Monitor and either 2b, FF, 1E or 7F. Check if there is something wrong with the Videocard, the PCIE slot or BUS, the Monitor or monitor cable. Turn the Monitor on and off, switch the Monitor cable from one D-SUB or DVI plug to the other in case your Videocard has two. If this doesnt help then reboot and load the optimized defaults. If that doesnt help either try another Videocard if possible, or try the Videocard in another system to make sure its working properly. Try another monitor or try the Monitor on another System.

7F
When the system detects that a critical error happened during the last boot attempt or several boot attempts failed, so OC recovery kicked in. There should be a message displayed on the Display informing you that OC revocery kicked in and that its waiting for your input to enter BIOS. If you cant see this message cause your Display stays black, please check the description for POST Code 2b.

1E
Your in the BIOS right now, if you cant see the BIOS cause your Display stays black, please check the description for POST Code 2b.

E0
When you get this error message the Mainboard cant detect the memory SPD, the memory itselft, or there was some problem while reading from the SPD. Shut down the Mainboard and make sure the memory is seated properly. Load the optimized defaults, if this doesnt help then try one stick of memory in slot1 or slot2, if possible update the BIOS, try another SPD on your memory, try another set of memory or try this set of memory in another system.

E1
Virtually the same as E0, check E0 for a description.

C1
If the Mainboard hangs during this bootup phase then its most likely a memory related problem. Please check the settings your tried and load the optimized defaults. Check if the set of memory has been tested by us or any other user, search for topics/threads in the foxconn section about this set of memory to see how other users are configuring it. During this phase of bootup the Level 2 cache is detected as well, if the CPU is overclocked or damaged or misconfigured it might trigger this POST Code as well. If the problem doesnt seem to be memory related for you, then search for topics/threads from other users who are using the same CPU and check how they are configuring it. If possible check another CPU in this Mainboard or check the same CPU in another Mainboard to make sure its running fine.

A0 and anything from 03 until 91
If you get any of the above POST codes it means the initial memory configuration and testing procedure failed. Check if the set of memory has been tested by us or any other user, search for topics/threads in the foxconn section about this set of memory to see how other users are configuring it. Check the detailled POST Code list below for more details on he memory configuration and testing proecures POST Code sequence.

54 with beeping
This POST Code is a part of the above initial memory configuration and testing Codes, but If the Debug LEDs display 54 with a lot of beeping, it might be something else. When you apply new settings in BIOS and hit save and exit you might get this error. It doesnt NECESSARILY mean that the settings you tried to apply dont work. Keep the power button pressed for 4 seconds to shut the board down - wait 10 seconds - then power the board on again. OC revocery will kick in, enter BIOS but just hit "save and exit" and see if the settings work now. If you get error 54 with beeps again the settings your trying wont work, most likely cause the memory cant take it. Check if the set of memory has been tested by us or any other user, search for topics/threads in the foxconn section about this set of memory to see how other users are configuring it.

A1
If you get the above POST code it means the initial memory configuration and testing procedure passed, but there was a problem when setting up the clockgen and the system clocks. Check your system settings, load the optimized defaults, if these tips dont help search the foxconn support section for topics/threads about the same or similar hardware you are using.

C5
When your system hangs and the Debug LEDs show C5 your memory or the chipset is most likely not stable at this setting.Check if the set of memory has been tested by us or any other user, search for topics/threads in the foxconn section about this set of memory to see how other users are configuring it.

80
80 or FF are the codes the board shows under normal operation.


Detailled list of Award BIOS Port80 and Intel X38/X48 POST Codes:
These POST Codes are generated by the Award BIOS Kernel Core using the Port80 feedback from the CPU.
Note that some of the Intel Chipset memory configuration and testing procedure Codes (BLUE) are identical to some of the Award POST Codes. The BIOS cannot translate those Codes and just forwards them, but from the context it should be clear what a Code means even if there are two possible interpretations.

no LED all fans spinning PWM cant get enough juice
FF Test CMOS R/W functionality (FF is used for several steps, see further down in the list)
CA Base memory Test
CB Base memory Test fail/error
CF Test CMOS R/W functionality
C0 Early chipset initialization, Disable shadow RAM, Disable L2 cache, Program basic chipset registers
C1 Detect memory, Auto-detection of DRAM size, type and ECC, Auto-detection of L2 cache
E0 Cant detect SPD/memory
E1 Cant detect SPD/memory

A0 memory configuration and testing
03 Intel memory configuration and testing code
24 Intel memory configuration and testing code
26 Intel memory configuration and testing code
27 Intel memory configuration and testing code
FF Intel memory configuration and testing code
28 Intel memory configuration and testing code
29 Intel memory configuration and testing code
30 Intel memory configuration and testing code
31 Intel memory configuration and testing code
32 Intel memory configuration and testing code
FF Intel memory configuration and testing code
FF Intel memory configuration and testing code
33 Intel memory configuration and testing code
34 Intel memory configuration and testing code
35 Intel memory configuration and testing code
36 Intel memory configuration and testing code
FF Intel memory configuration and testing code
37 Intel memory configuration and testing code
38 Intel memory configuration and testing code
39 Intel memory configuration and testing code
40 Intel memory configuration and testing code
FF Intel memory configuration and testing code
41 Intel memory configuration and testing code
42 Intel memory configuration and testing code
FF Intel memory configuration and testing code
43 Intel memory configuration and testing code
44 Intel memory configuration and testing code
45 Intel memory configuration and testing code
46 Intel memory configuration and testing code
47 Intel memory configuration and testing code
48 Intel memory configuration and testing code
49 Intel memory configuration and testing code
50 Intel memory configuration and testing code
51 Intel memory configuration and testing code
52 Intel memory configuration and testing code
54 Intel memory configuration and testing code (54 with beeping, check detailled description on the top)
81 Intel memory configuration and testing code
82 Intel memory configuration and testing code
84 Intel memory configuration and testing code
90 Intel memory configuration and testing code
91 Intel memory configuration and testing code
A1 Finished Intel memory configuration and testing code, going into ClockGen

C3 Expand compressed BIOS codes to DRAM
C5 Call chipset hook to copy BIOS back to E000 & F000 in shadow
03 Initial Superio_Early_Init switch
05 Blank out screen, Clear CMOS error flag
07 Clear 8042 interface, Initialize 8042 self-test
08 Test special keboard controller for Winbond 977 series superIO chips, enable keyboard interface
0A Detect PS/2 mouse/keyboard
0E Test F000h segment shadow to see whether it is R/W-able or not. If test fails, use onboard speaker alarm
0h Expand the Xgroup codes locating in pysical address 1000:0
10 Auto detect flash type to load appropiate flash R/W codes into the run time area in F000 for ESCD & DMI support
12 Use walking 1's algorythm to check out interface in CMOS circuitry, Set real-time clock power status, and then check for override
14 Program chipset default values into chipet. Chipset default values are MODBINable by OEM customers
16 Initial Early_Init_Onboard_Generator switch
18 Detect CPU and Cache, (initialize L1 Cache?)
1B Initial interupts vector table. If no special specified, all H/W interupts are directed to SPURIOUS_INT_HDLR & S/W interrupts to SPURIOUS_soft_HDLR
1D Initial EARLY_PM_INIT switch
1E Finished Loading BIOS Menu
1F Load keyboard matrix (notebook platform)
21 HPM initialization (notebook platform)
23 Check validity of RTC value: e.g. a value of 5Ah is an invalid value for RTC minute. Load CMOS settings into BIOS stack. If CMOS checksum fails, use the default values instead. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into consideration of the ESCD's legacy information. Onboard clock generator initialization. Disable respective clock resource to empty PCI & DIMM slots. Early PCI initialization: Enumerate PCI bus number, Assign memory & I/O resource, search for valid VGA device & VGA BIOS and put it into C000:0
27 Initialize INT 09 buffer
29 Program CPU internal MTRR (P6 & PII) for 0-640K memory address, Initialize the APIC for Pentium class CPU, Program early chipset according to CMOS setup (onboard IDE controller etc), Measure CPU speed,
2b Invoke vga BIOS
2d VGA Bios loaded, initializing display output, display VGA BIOS details, Award BIOS details, CPU type, CPU speed etc
33 Reset keyboard except Winbond 977 series Super I/O chips
3E Test 8259 interrupt mask bits for channel 1
40 Test 8259 interrupt mask bits for channel 2
43 Test 8259 functionality
47 Initialize EISA slot
49 Calculate total memory by testing the last double word of each 64K page
4E Program MTTR of M1 CPU, Initialize L2 cache for P6 class CPU & program CPU with proper cacheable range, Initialize the APIC for P6 class CPU, On MP platform, adjust the cacheable range to smaller one in case the cacheable ranges between each CPU are not identical.
50 Initialize USB
52 Test all memory (clear all extended memory to 0)
55 Display number of processors (multi-processor platform)
57 Display PnP logo, Early ISA PnP initialization, Assign CSN to every ISA PnP device
59 Initialize the combined Trend Anti-Virus code
5B (Optional Feature) Show message for entering AWDFLASH.EXE from FDD
5D Initialize Init_Onboard_Super_IO switch, Initialize Init_Onboard_AUDIO switch
60 Okay to enter Setup utility, users can not enter the CMOS setup utility before this POST stage
65 Initialize PS/2 Mouse
67 Prepare memory size information for function call: INT 15h ax=E820h
69 power on l2 cache
6B Program chipset registers according to items described in Setup & Auto-configuration table
6D assign resources to all ISA PnP devices, Auto asign ports to onboard COM ports if the corresponding item in Setup is set to "AUTO"
6F initialize floppy controller, set up floppy related fields in 40:hardware
73 (Optional feature) Enter AWDFLASH.EXE if: AWDFLASH is found in floppy drive, or, ALT+F2 is pressed
75 detect & install all IDE devices: HDD, LS120, ZIP, CDROM etc
77 detect serial ports & parallel ports
7A detect & install co-processors
7F Switch back to text mode if full screen logo is supported. If error occur, report errors & wait for keys. If no errors occur or F1 key is pressed to contine: Clear EPA or customization logo, On FOXCONN boards: OC recovery kicked in, waiting for input to enter BIOS (if your monitor stays black check if the board beeped during POST code 2b, if yes see POST code 2b)
80 Normal operation of the board after bootup
82 Call chipset power management hook, Recover the text fond used by EPA logo (not the fullscreen logo)
83 Save all data in stack back to CMOS
84 initialize ISA PnP boot devices
85 USB final initialiation, NET PC: Build SYSID structure, switch screen back to text mode, set up ACPI table at top of memory, Invoke ISA adapter ROMs, Assign IRQs to PCI Devices, Initialize APM, Clear noise of IRQs
93 read hdd boot sector information for trend anti-virus code
94 enable L2 cache, program boot up speed, chipet final initialization, power management final initialization, clear screen & display summary table, program K6 compatible write allocation, program P6 class compatible write combining
95 program daylight saving, update keyboard LED & typematic rate
96 build MP table, build & update ESCD, set CMOS century to 20h or 19h, load CMOSD time into DOS timer tick, build MSIRQ routing table
FF booting (Int 19h) If the Debug LEDs show FF but the Display stays black, check the detailled description of POST code 2b on the top



Normal Boot Sequence:
This is the sequence of POST codes you should see when booting up, note that some of them only flash on for a fraction of a second

FF
c0
A0
40
54
C3
A1
29
2b
2d
93
33
49
50
52
75
89
8b
94
95
96
FF
80



以下轉貼自：http://hi.baidu.com/%D5%DD%B2%F5/blog/item/6329fd24b2f025014c088de7.html

（簡體字義有稍微做轉換，若轉換有誤請告知）

代碼	Award    BIOS	Ami    BIOS	Phoenix    BIOS或Tandy 3000 BIOS
00	.	已顯示系統的配置；即將控制INI19引導裝入。	.
01	處理器測試1，處理器狀態核實,如果測試失敗，循環是無限的。	處理器寄存器的測試即將開始，不可屏蔽中斷即將停用。	CPU寄存器測試正在進行或者失敗。
02	確定診斷的類型（正常或者製造）。如果鍵盤緩衝器含有數據就會失效。	停用不可屏蔽中斷；通過延遲開始。	CMOS寫入／讀出正在進行或者失靈。
03	清除8042鍵盤控制器，發出TESTKBRD命令（AAH）	通電延遲已完成。	ROM    BIOS檢查部件正在進行或失靈。
04	使8042鍵盤控制器復位，核實TESTKBRD。	鍵盤控制器軟復位／通電測試。	可編程間隔計時器的測試正在進行或失靈。
05	如果不斷重複製造測試1至5，可獲得8042控制狀態。	已確定軟復位／通電；即將啟動ROM。	DMA初如準備正在進行或者失靈。
06	使電路片作初始準備，停用視頻、奇偶性、DMA電路片，以及清除DMA電路片，所有頁面寄存器和CMOS停機字節。	已啟動ROM計算ROM BIOS檢查總和，以及檢查鍵盤緩衝器是否清除。	DMA初始頁面寄存器讀／寫測試正在進行或失靈。
07	處理器測試2，核實CPU寄存器的工作。	ROM BIOS檢查總和正常，鍵盤緩衝器已清除，向鍵盤發出BAT（基本保證測試）命令。	.
08	使CMOS計時器作初始準備，正常的更新計時器的循環。	已向鍵盤發出BAT命令，即將寫入BAT命令。	RAM更新檢驗正在進行或失靈。
09	EPROM檢查總和且必須等於零才通過。	核實鍵盤的基本保證測試，接著核實鍵盤命令字節。	第一個64K RAM測試正在進行。
0A	使視頻接口作初始準備。	發出鍵盤命令字節代碼，即將寫入命令字節數據。	第一個64K RAM晶片或數據線失靈，移位。
0B	測試8254通道0。	寫入鍵盤控制器命令字節，即將發出引腳23和24的封鎖／解鎖命令。	第一個64K RAM奇／偶邏輯失靈。
0C	測試8254通道1。	鍵盤控制器引腳23、24已封鎖／解鎖；已發出NOP命令。	第一個64K RAN的地址線故障。
0D	1、檢查CPU速度是否與系統時鐘相匹配。2、檢查控制晶片已編程值是否符合初設置。3、視頻通道測試，如果失敗，則鳴喇叭。	已處理NOP命令；接著測試CMOS停開寄存器。	第一個64K RAM的奇偶性失靈
0E	測試CMOS停機字節。	CMOS停開寄存器讀／寫測試；將計算CMOS檢查總和。	初始化輸入／輸出埠地址。
0F	測試擴展的CMOS。	已計算CMOS檢查總和寫入診斷字節；CMOS開始初始準備。	.
10	測試DMA通道0。	CMOS已作初始準備，CMOS狀態寄存器即將為日期和時間作初始準備。	第一個64K RAM第0位故障。
11	測試DMA通道1。	CMOS狀態寄存器已作初始準備，即將停用DMA和中斷控制器。	第一個64DK RAM第1位故障。
12	測試DMA頁面寄存器。	停用DMA控制器1以及中斷控制器1和2；即將視頻顯示器並使埠B作初始準備。	第一個64DK RAM第2位故障。
13	測試8741鍵盤控制器接口。	視頻顯示器已停用，埠B已作初始準備；即將開始電路片初始化／存儲器自動檢測。	第一個64DK RAM第3位故障。
14	測試存儲器更新觸發電路。	電路片初始化／存儲器處自動檢測結束；8254計時器測試即將開始。	第一個64DK RAM第4位故障。
15	測試開頭64K的系統存儲器。	第2通道計時器測試了一半；8254第2通道計時器即將完成測試。	第一個64DK RAM第5位故障。
16	建立8259所用的中斷向量表。	第2通道計時器測試結束；8254第1通道計時器即將完成測試。	第一個64DK RAM第6位故障。
17	調準視頻輸入／輸出工作，若裝有視頻BIOS則啟用。	第1通道計時器測試結束；8254第0通道計時器即將完成測試。	第一個64DK RAM第7位故障。
18	測試視頻存儲器，如果安裝選用的視頻BIOS通過，由可繞過。	第0通道計時器測試結束；即將開始更新存儲器。	第一個64DK RAM第8位故障。
19	測試第1通道的中斷控制器（8259）屏蔽位。	已開始更新存儲器，接著將完成存儲器的更新。	第一個64DK RAM第9位故障。
1A	測試第2通道的中斷控制器（8259）屏蔽位。	正在觸發存儲器更新線路，即將檢查15微秒通／斷時間。	第一個64DK RAM第10位故障。
1B	測試CMOS電池電平。	完成存儲器更新時間30微秒測試；即將開始基本的64K存儲器測試。	第一個64DK RAM第11位故障。
1C	測試CMOS檢查總和。	.	第一個64DK RAM第12位故障。
1D	調定CMOS配置。	.	第一個64DK RAM第13位故障。
1E	測定系統存儲器的大小，並且把它和CMOS值比較。	.	第一個64DK RAM第14位故障。
1F	測試64K存儲器至最高640K。	.	第一個64DK RAM第15位故障。
20	測量固定的8259中斷位。	開始基本的64K存儲器測試；即將測試地址線。	從屬DMA寄存器測試正在進行或失靈。
21	維持不可屏蔽中斷（NMI）位（奇偶性或輸入／輸出通道的檢查）。	通過地址線測試；即將觸發奇偶性。	主DMA寄存器測試正在進行或失靈。
22	測試8259的中斷功能。	結束觸發奇偶性；將開始串行數據讀／寫測試。	主中斷屏蔽寄存器測試正在進行或失靈。
23	測試保護方式8086虛擬方式和8086頁面方式。	基本的64K串行數據讀／寫測試正常；即將開始中斷向量初始化之前的任何調節。	從屬中斷屏蔽存器測試正在進行或失靈。
24	測定1MB以上的擴展存儲器。	向量初始化之前的任何調節完成，即將開始中斷向量的初始準備。	設置ES段地址寄存器註冊表到記憶體高端。
25	測試除頭一個64K之後的所有存儲器。	完成中斷向量初始準備；將為旋轉式斷續開始讀出8042的輸入／輸出埠。	裝入中斷向量正在進行或失靈。
26	測試保護方式的例外情況。	讀出8042的輸入／輸出埠；即將為旋轉式斷續開始使全局數據作初始準備。	開啟A20地址線；使之參入尋址。
27	確定超高速緩衝存儲器的控制或屏蔽RAM。	全1數據初始準備結束；接著將進行中斷向量之後的任何初始準備。	鍵盤控制器測試正在進行或失靈。
28	確定超高速緩衝存儲器的控制或者特別的8042鍵盤控制器。	完成中斷向量之後的初始準備；即將調定單色方式。	CMOS電源故障／檢查總和計算正在進行。
29	.	已調定單色方式，即將調定彩色方式。	CMOS配置有效性的檢查正在進行。
2A	使鍵盤控制器作初始準備。	已調定彩色方式，即將進行ROM測試前的觸發奇偶性。	置空64K基本記憶體。
2B	使磁碟驅動器和控制器作初始準備。	觸發奇偶性結束；即將控制任選的視頻ROM檢查前所需的任何調節。	屏幕存儲器測試正在進行或失靈。
2C	檢查串列埠，並使之作初始準備。	完成視頻ROM控制之前的處理；即將查看任選的視頻ROM並加以控制。	屏幕初始準備正在進行或失靈。
2D	檢測並列埠，並使之作初始準備。	已完成任選的視頻ROM控制，即將進行視頻ROM回復控制之後任何其他處理的控制。	屏幕回掃測試正在進行或失靈。
2E	使硬磁盤驅動器和控制器作初始準備。	從視頻ROM控制之後的處理復原；如果沒有發現EGA／VGA就要進行顯示器存儲器讀／寫測試。	檢測視頻ROM正在進行。
2F	檢測浮點運算器，並使之作初始準備。	沒發現EGA／VGA；即將開始顯示器存儲器讀／寫測試。	.
30	建立基本記憶體和擴展記憶體。	通過顯示器存儲器讀／寫測試；即將進行掃瞄檢查。	認為屏幕是可以工作的。
31	檢測從C800：0至EFFF：0的選用ROM，並使之作初始準備。	顯示器存儲器讀／寫測試或掃瞄檢查失敗，即將進行另一種顯示器存儲器讀／寫測試。	單色監視器是可以工作的。
32	對主板上COM／LTP／FDD／聲音設備等I／O晶片編程使之適合設置值。	通過另一種顯示器存儲器讀／寫測試；卻將進行另一種顯示器掃瞄檢查。	彩色監視器（40列）是可以工作的。
33	.	視頻顯示器檢查結束；將開始利用調節開關和實際插卡檢驗顯示器的關型。	彩色監視器（80列）是可以工作的。
34	.	已檢驗顯示器適配器；接著將調定顯示方式。	計時器滴答聲中斷測試正在進行或失靈。
35	.	完成調定顯示方式；即將檢查BIOS ROM的數據區。	停機測試正在進行或失靈。
36	.	已檢查BIOS ROM數據區；即將調定通電信息的游標。	門電路中A－20失靈。
37	.	識別通電信息的游標調定已完成；即將顯示通電信息。	保護方式中的意外中斷。
38	.	完成顯示通電信息；即將讀出新的游標位置。	RAM測試正在進行或者地址故障＞FFFFH。
39	.	已讀出保存游標位置，即將顯示引用信息串。	.
3A	.	引用信息串顯示結束；即將顯示發現信息。	間隔計時器通道2測試或失靈。
3B	用OPTI電路片（只是486）使輔助超高速緩衝存儲器作初始準備。	已顯示發現＜ESC＞信息；虛擬方式，存儲器測試即將開始。	按日計算的日曆時鐘測試正在進行或失靈。
3C	建立允許進入CMOS設置的標誌。	.	串列埠測試正在進行或失靈。
3D	初始化鍵盤／PS2鼠標／PNP設備及總記憶體節點。	.	並列埠測試正在進行或失靈。
3E	嘗試打開L2高速緩存。	.	浮點運算器測試正在進行或失靈。
40	.	已開始準備虛擬方式的測試；即將從視頻存儲器來檢驗。	調整CPU速度，使之與外圍時鐘精確匹配。
41	中斷已打開，將初始化數據以便於0：0檢測記憶體變換（中斷控制器或記憶體不良）	從視頻存儲器檢驗之後復原；即將準備描述符表。	系統插件板選擇失靈。
42	顯示窗口進入SETUP。	描述符表已準備好；即將進行虛擬方式作存儲器測試。	擴展CMOS RAM故障。
43	若是即插即用BIOS，則串口、並口初始化。	進入虛擬方式；即將為診斷方式實現中斷。	.
44	.	已實現中斷（如已接通診斷開關；即將使數據作初始準備以檢查存儲器在0：0返轉。）	BIOS中斷進行初始化。
45	初始化浮點運算器。	數據已作初始準備；即將檢查存儲器在0：0返轉以及找出系統存儲器的規模。	.
46	.	測試存儲器已返回；存儲器大小計算完畢，即將寫入頁面來測試存儲器。	檢查只讀存儲器ROM版本。
47	.	即將在擴展的存儲器試寫頁面；即將基本640K存儲器寫入頁面。	.
48	.	已將基本存儲器寫入頁面；即將確定1MB以上的存儲器。	視頻檢查，CMOS重新配置。
49	.	找出1BM以下的存儲器並檢驗；即將確定1MB以上的存儲器。	.
4A	.	找出1MB以上的存儲器並檢驗；即將檢查BIOS ROM數據區。	進行視頻的初始化。
4B	.	BIOS ROM數據區的檢驗結束，即將檢查＜ESC＞和為軟復位清除1MB以上的存儲器。	.
4C	.	清除1MB以上的存儲器(軟復位)即將清除1MB以上的存儲器.	屏蔽視頻BIOS ROM。.
4D	已清除1MB以上的存儲器（軟復位）；將保存存儲器的大小。	.
4E	若檢測到有錯誤；在顯示器上顯示錯誤信息，並等待客戶按＜F1＞鍵繼續。	開始存儲器的測試：（無軟復位）；即將顯示第一個64K存儲器的測試。	顯示版權信息。
4F	讀寫軟、硬盤數據，進行DOS引導。	開始顯示存儲器的大小，正在測試存儲器將使之更新；將進行串行和隨機的存儲器測試。	.
50	將當前BIOS監時區內的CMOS值存到CMOS中。	完成1MB以下的存儲器測試；即將高速存儲器的大小以便再定位和掩蔽。	將CPU類型和速度送到屏幕。
51	.	測試1MB以上的存儲器。	.
52	所有ISA只讀存儲器ROM進行初始化，最終給PCI分配IRQ號等初始化工作。	已完成1MB以上的存儲器測試；即將準備回到實址方式。	進入鍵盤檢測。
53	如果不是即插即用BIOS，則初始化串口、並口和設置時種值。	保存CPU寄存器和存儲器的大小，將進入實址方式。	.
54	.	成功地開啟實址方式；即將復原準備停機時保存的寄存器。	掃瞄「打擊鍵」
55	.	寄存器已復原，將停用門電路A－20的地址線。	.
56	.	成功地停用A－20的地址線；即將檢查BIOS ROM數據區。	鍵盤測試結束。
57	.	BIOS ROM數據區檢查了一半；繼續進行。	.
58

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