Troubleshooting
4-29
0xC9
pretask before EISA init
LBT
Core
0x51
EISA Init
LBT
Core
0x5A
Display prompt "Press F2 to enter SETUP"
LBT
Core
0x5B
Disable CPU cache.
LBT
Core
0x5C
Test RAM between 512K and 640K.
LBT
Core
0x60
Determine and test the amount of extended memory
available. Determine if memory exists by writing to a few
strategic locations and see if the data can be read back. If
so, perform an address-line test and a RAM test on the
memory. Save the total extended
LBT
Core
0x62
The amount of memory available. This test is dependent
on the processor, since the test will vary depending on the
width of memory (16 or 32 bits). This test will also use A20
as the skew address to prevent corruption of the system
memory.
LBT
Core
0x64
Jump to UserPatch1.
LBT
Core
0x66
Set cache registers to their CMOS values if CMOS is valid,
unless auto configuration is enabled, in which case load
cache registers from the Setup default table.
LBT
Core
0x68
Enable external cache and CPU cache if present.
Configure non-cacheable regions if necessary.
LBT
Core
0x6A
Display external cache size on the screen if it is non-zero.
LBT
Core
0x6C
Display shadow message
LBT
Core
0xCA
Post EISA init
LBT
Core
0x70
Check flags in CMOS and in the TrustedCore data area for
errors detected during POST. Display error messages on
the screen.
LBT
Core
0x72
Check status bits to see if configuration problems were
detected. If so, display error messages on the screen.
LBT
Core
0x4F
Initialize MultiBoot. Allocate memory for old and new
MultiBoot history tables.
LBT
Core
0xCD
Reclaim console vector after HW vectors initialized.
LBT
Core
0x7D
Initialize Intelligent System Monitoring.
LBT
Core
0x7E
The Coprocessor initialization test. Use the floating point
instructions to determine if a coprocessor exists instead of
the ET bit in CR0.
LBT
Core
0xC1
Check Boot Type (Server BIOS)
LBT
Core
0x80
Disable onboard COM and LPT ports before testing for
presence of external I/O devices.
LBT
Core
Table 4-4.
POST Codes
POST Code
Function
Phase
Component
Содержание Aspire 4743
Страница 1: ... Aspire 4743 4743G 4743Z 4743ZG SERVICEGUIDE ...
Страница 10: ...10 ...
Страница 11: ...CHAPTER 1 Hardware Specifications ...
Страница 14: ...1 4 ...
Страница 32: ...1 22 Hardware Specifications and Configurations System Block Diagram Figure 1 10 System Block Diagram ...
Страница 50: ...1 40 Hardware Specifications and Configurations ...
Страница 51: ...CHAPTER 2 System Utilities ...
Страница 70: ...2 20 System Utilities ...
Страница 71: ...CHAPTER 3 Machine Maintenance ...
Страница 74: ...3 4 ...
Страница 82: ...3 12 Machine Maintenance 4 Lift the base door to remove Figure 3 9 Base Door ...
Страница 85: ...Machine Maintenance 3 15 6 Detach the bracket from the HDD Figure 3 14 HDD Bracket ...
Страница 87: ...Machine Maintenance 3 17 4 Pull the WLAN module out of the slot Figure 3 17 WLAN Module ...
Страница 95: ...Machine Maintenance 3 25 8 Open the connector latch then detach cable to remove keyboard Figure 3 30 Keyboard ...
Страница 100: ...3 30 Machine Maintenance 6 Lift the speakers from the upper cover Figure 3 40 Speaker Cable ...
Страница 106: ...3 36 Machine Maintenance 4 Lift the USB board from the lower cover Figure 3 50 USB Board ...
Страница 113: ...Machine Maintenance 3 43 4 Remove the thermal module from the mainboard Figure 3 62 Thermal Module Screws ...
Страница 136: ...3 66 Machine Maintenance 3 Secure the bezel with the two 2 screw covers Figure 3 102 LCD Bezel Screw Covers ...
Страница 151: ...Machine Maintenance 3 81 3 Connect and lock the touchpad cable to the touchpad board Figure 3 128 Touchpad Cable ...
Страница 156: ...3 86 Machine Maintenance 5 Connect the speaker cable to the power button board Figure 3 137 Speaker Cable ...
Страница 172: ...3 102 Machine Maintenance Remove the Dummy Card 0 1 Insert the dummy card into the slot until it clicks into place ...
Страница 174: ...3 104 Machine Maintenance ...
Страница 175: ...CHAPTER 4 Troubleshooting ...
Страница 207: ...CHAPTER 5 Jumper and Connector Locations ...
Страница 208: ...2 2 Clearing Password Check and BIOS Recovery 5 5 Clearing Password Check 5 5 Performing a BIOS recovery 5 6 ...
Страница 215: ...CHAPTER 6 FRU List ...
Страница 216: ...6 2 Aspire 4743 4743G 4743Z 4743ZG Exploded Diagrams 6 4 Main Assembly 6 4 LCD Assembly 6 5 ...
Страница 234: ...6 20 FRU List ...
Страница 235: ...CHAPTER 7 Model Definition and Configuration ...
Страница 236: ...7 2 Aspire 4743 4743G 4743Z 4743ZG 7 3 ...
Страница 270: ...7 36 Model Definition and Configuration ...
Страница 338: ...7 104 Model Definition and Configuration ...
Страница 339: ...CHAPTER 8 Test Compatible Components ...
Страница 340: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Страница 351: ...CHAPTER 9 Online Support Information ...
Страница 352: ...9 2 Introduction 9 3 ...
Страница 354: ...9 4 Online Support Information ...