TravelMate 4020 Service Guide
Page 52
... but some screws are with yellow circle) Quantity Chapter 3 The image below . You may have to see these screws. Mini PCI cover here also called RAM/Wireless cover. However, please notice that you have to remove the HDD, the heatsink cover to group the screws on the following : 1. Turn off the...
... but some screws are with yellow circle) Quantity Chapter 3 The image below . You may have to see these screws. Mini PCI cover here also called RAM/Wireless cover. However, please notice that you have to remove the HDD, the heatsink cover to group the screws on the following : 1. Turn off the...
TravelMate 4020 Service Guide
Page 54
... frame in -1 Cover *4 Speaker Set *2 Modem Board Upper Case Assembly Touchpad Touchpad Bracket Bluetooth Module Touchpad Board 48 Chapter 3 Start Battery K*2 HDD Cover HDD Module E*2 RAM/Wireless Cover Wireless LAN Card Memory CPU *2 IO Bezel *2 Heatsink Cover *2 Thermal Module ODD Module *6 ODD Connector Board ODD Holder ODD Drive *3 Middle Cover *2 Keyboard...
... frame in -1 Cover *4 Speaker Set *2 Modem Board Upper Case Assembly Touchpad Touchpad Bracket Bluetooth Module Touchpad Board 48 Chapter 3 Start Battery K*2 HDD Cover HDD Module E*2 RAM/Wireless Cover Wireless LAN Card Memory CPU *2 IO Bezel *2 Heatsink Cover *2 Thermal Module ODD Module *6 ODD Connector Board ODD Holder ODD Drive *3 Middle Cover *2 Keyboard...
TravelMate 4020 Service Guide
Page 57
Removing the HDD Module/the memory and the Wireless LAN Card/the Thermal Module and the CPU/ODD and the LCD Module Removing the HDD Module 1. Remove the HDD cover. 3. Remove the RAM/Wireless cover. 3. Pop up the memory then remove it . . Disconnect the auxiliary and the main wireless antennae. 5. Chapter 3 51 Pop the wireless LAN card then remove it . 4. Remove the two screws that secure the RAM/Wireless cover. 2. Remove the two screws holding the HDD cover. 2. Detach the HDD module then remove it. Removing the Memory and the Wireless LAN Card 1.
Removing the HDD Module/the memory and the Wireless LAN Card/the Thermal Module and the CPU/ODD and the LCD Module Removing the HDD Module 1. Remove the HDD cover. 3. Remove the RAM/Wireless cover. 3. Pop up the memory then remove it . . Disconnect the auxiliary and the main wireless antennae. 5. Chapter 3 51 Pop the wireless LAN card then remove it . 4. Remove the two screws that secure the RAM/Wireless cover. 2. Remove the two screws holding the HDD cover. 2. Detach the HDD module then remove it. Removing the Memory and the Wireless LAN Card 1.
TravelMate 4020 Service Guide
Page 74
... BIOS Setup Utility. Keyboard Controller Failed see "Keyboard or Auxiliary Input Device Check" on page 64. Shadow RAM Failed at offset: nnnn BIOS ROM System board System RAM Failed at offset: nnnn DIMM System board Extended RAM Failed at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum...
... BIOS Setup Utility. Keyboard Controller Failed see "Keyboard or Auxiliary Input Device Check" on page 64. Shadow RAM Failed at offset: nnnn BIOS ROM System board System RAM Failed at offset: nnnn DIMM System board Extended RAM Failed at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum...
TravelMate 4020 Service Guide
Page 77
... DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 KB base RAM RAM failure on address line xxxx 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 Phoenix Dispatch Manager Warm start shut down Shadow ...
... DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 215 KB base RAM RAM failure on address line xxxx 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 Phoenix Dispatch Manager Warm start shut down Shadow ...
TravelMate 4020 Service Guide
Page 78
... keyboard Set 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 Processor APIC...
... keyboard Set 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 Processor APIC...