TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 11
... dual-channel (interleaving) memory mode T 1 MB flash BIOS and shadow RAM support Storage subsystem T Hard disk drive (HDD) t SATA hard disk drives in 80-,120-, and 160 GB capacities (higher HDD capacity supported) t Acer DASP (Disk Anti-Shock Protection) T Optical disc drive (ODD) options ...™ (xD) formats 1 EVP is part of the Acer ProFile line of notebook computers. Chapter 1 1 NOTE: The features listed in a classic matte black magnesium alloy casing. Chapter 1 System Tour Features Your TravelMate 4520 is only supported by certain operating systems including the current versions...
... dual-channel (interleaving) memory mode T 1 MB flash BIOS and shadow RAM support Storage subsystem T Hard disk drive (HDD) t SATA hard disk drives in 80-,120-, and 160 GB capacities (higher HDD capacity supported) t Acer DASP (Disk Anti-Shock Protection) T Optical disc drive (ODD) options ...™ (xD) formats 1 EVP is part of the Acer ProFile line of notebook computers. Chapter 1 1 NOTE: The features listed in a classic matte black magnesium alloy casing. Chapter 1 System Tour Features Your TravelMate 4520 is only supported by certain operating systems including the current versions...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 23
...with a new one. Since most systems are the default and suggested parameter settings. This memory area is not part of the system RAM, which allows configuration data to be simply referred to the BIOS settings. In the descriptive tables following conditions: T When changing the ... values in this utility. NOTE: For ease of the menu screen illustrations, settings in a battery-backed nonvolatile memory called CMOS RAM. The screenshots used in CMOS. The Setup Utility loads the configuration values in boldface are already properly configured and optimized, there is...
...with a new one. Since most systems are the default and suggested parameter settings. This memory area is not part of the system RAM, which allows configuration data to be simply referred to the BIOS settings. In the descriptive tables following conditions: T When changing the ... values in this utility. NOTE: For ease of the menu screen illustrations, settings in a battery-backed nonvolatile memory called CMOS RAM. The screenshots used in CMOS. The Setup Utility loads the configuration values in boldface are already properly configured and optimized, there is...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 80
... drive matches the diskette type set in the Setup Utility. Refer to reconfigure the system time settings. Run Setup Shadow RAM Failed at offset: nnnn System RAM Failed at offset: nnnn Extended RAM Failed at offset: nnnn System battery is dead - System board Run the Setup Utility, then press F9 to load the...
... drive matches the diskette type set in the Setup Utility. Refer to reconfigure the system time settings. Run Setup Shadow RAM Failed at offset: nnnn System RAM Failed at offset: nnnn Extended RAM Failed at offset: nnnn System battery is dead - System board Run the Setup Utility, then press F9 to load the...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 82
... screen during POST but you can view POST when connected to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 KB base RAM RAM failure on , the LCD screen is blank, but system runs correctly. Speaker System board POST Beep Codes Code 02h 03h 04h 06h 08h 09h 0Ah...
... screen during POST but you can view POST when connected to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 KB base RAM RAM failure on , the LCD screen is blank, but system runs correctly. Speaker System board POST Beep Codes Code 02h 03h 04h 06h 08h 09h 0Ah...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 83
... 66h 67h 68h 69h 6Ah 6Bh 6Ch Chapter 4 Beeps 1-3-4-3 1-4-1-1 2-1-2-3 2-2-3-1 POST Routine Description RAM failure on data bits xxxx of low byte of memory bus Enable cache before system BIOS shadow RAM failure on data bits xxxx of high byte of memory bus Test CPU bus-clock frequency Initialize...key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to User Patch1 Configure advanced cache registers Initialize Multi ...
... 66h 67h 68h 69h 6Ah 6Bh 6Ch Chapter 4 Beeps 1-3-4-3 1-4-1-1 2-1-2-3 2-2-3-1 POST Routine Description RAM failure on data bits xxxx of low byte of memory bus Enable cache before system BIOS shadow RAM failure on data bits xxxx of high byte of memory bus Test CPU bus-clock frequency Initialize...key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to User Patch1 Configure advanced cache registers Initialize Multi ...