Memory:

DEBUG_BIOS equ 1 (Chipset\Alviso\MemoryInitAsm\IA32\IMEMORY.INC)

Code

Description

 

 

 

 

0x29

Perform JEDEC memory initialization for all memory rows

 

 

 

0x30

Perform steps required after memory init

 

 

 

0x31

Program DRAM throttling and throttling event registers

 

 

 

0x32

Setup DRAM control register for normal operation and enable

 

 

 

0x33

Enable RCOMP

 

 

 

0x34

Clear DRAM initialization bit in the SB

 

 

 

0x35

Initialization Sequence Completed, program graphic clocks

 

 

 

0x43

Program Thermal Throttling

 

 

 

 

BDS & Specific action:

Code

Description

 

 

0x00

Report the legacy boot is happening

 

 

0x12

Wake up the Aps

 

 

0x13

Initialize SMM Private Data and relocate BSP SMBASE

 

 

0x21

PC init begin at the stage1

 

 

0x27

Report every memory range do the hard ware ECC init

 

 

0x28

Report status code of every memory range

 

 

0x50

Get the root bridge handle

 

 

0x51

Notify pci bus driver starts to program the resource

 

 

0x58

Reset the host controller

 

 

0x5A

IdeBus begin initialization

 

 

0x79

Report that the remote terminal is being disabled

 

 

0x7A

Report that the remote terminal is being enabled

 

 

0x90

Keyboard reset

 

 

0x91

USB Keyboard disable

 

 

0x92

Keyboard detection

 

 

0x93

Report that the usb keyboard is being enabled

 

 

0x94

Clear the keyboard buffer

 

 

0x95

Init Keyboard

 

 

0x98

Mouse reset

 

 

0x99

Mouse disable

 

 

0x9A

Detect PS2 mouse

 

 

0x9B

Report that the mouse is being enabled

 

 

0xB8

Peripheral removable media reset(ex:IsaFloppy, USB device)

 

 

0xB9

Peripheral removable media disable

 

 

0xBB

Peripheral removable media enable

 

 

0xE4

Report Status Code here for DXE_ENTRY_POINT once it is available

 

 

0xF8

Report that ExitBootServices() has been called

 

 

0xF9

Runtime driver set virtual address map

 

 

132

Chapter 4

Page 142
Image 142
eMachines G630, G430 manual BDS & Specific action

G630, G430 specifications

eMachines, a brand known for its budget-friendly laptops and desktops, introduced the G series to cater to users seeking reliable performance without breaking the bank. The eMachines G430 and G630 are two models that stand out, particularly for students and casual users who want a notebook that delivers decent functionality for everyday tasks.

The eMachines G430 features a 14-inch display, which strikes a balance between portability and usability. This model is powered by an Intel Celeron processor, providing sufficient processing power for web browsing, document editing, and streaming media. With up to 4GB of RAM, the G430 ensures smooth multitasking, enabling users to run several applications at once without significant slowdown. The laptop also comes with a storage option of up to 500GB HDD, offering ample space for documents, photos, and videos.

On the other hand, the eMachines G630 boasts a larger 15.6-inch display, making it a more suitable choice for those who prioritize screen real estate. Similar to the G430, the G630 is equipped with an Intel Celeron processor and up to 4GB of RAM, allowing for decent performance across common tasks. The G630 enhances the storage options by providing up to 750GB HDD, catering to users who have larger file storage needs.

Both models are designed with user comfort in mind. They feature a full-sized keyboard that is responsive and easy to type on, which is particularly beneficial for long study sessions or extended work tasks. Additionally, the integrated webcam and microphone facilitate video conferencing and online communication, making these laptops a good choice for students attending virtual classes.

In terms of connectivity, the G430 and G630 come equipped with USB ports, HDMI output, and an Ethernet port, as well as Wi-Fi capabilities, allowing users to connect to the internet and other devices effortlessly. Their integrated graphics are suitable for light gaming and casual media playback, making them versatile for various entertainment needs.

Battery life is another critical feature, with both the G430 and G630 offering moderate longevity, sufficient for a day's use with typical workloads. Overall, the eMachines G430 and G630 represent solid options for budget-conscious consumers looking for dependable laptops that can handle everyday computing tasks. Their combination of practicality, decent performance, and essential features makes them appealing choices in the competitive entry-level laptop market.