Post Codes

These tables describe the POST codes and descriptions during the POST.

 

Sec: NO_EVICTION_MODE_DEBUG EQU 1

 

(CommonPlatform\sec\Ia32\SecCore.inc)

Code

Description

 

 

0xC2

MTRR setup

 

 

0xC3

Enable cache

 

 

0xC4

Establish cache tags

 

 

0xC5

Enter NEM, Place the BSP in No Fill mode, set CR0.CD = 1, CR0.NW =

 

0.

 

 

0xCF

Cache Init Finished

 

 

Memory:

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

Code

Description

 

 

 

 

0xA0

First memory check point

0x01

Enable MCHBAR

 

 

 

0x02

Check for DRAM initialization interrupt and reset fail

 

 

 

0x03

Verify all DIMMs are DDR or DDR2 and unbuffered

 

 

 

0x04

Detect an improper warm reset and handle

 

 

 

0x05

Detect if ECC SO-DIMMs are present in the system

 

 

 

0x06

Verify all DIMMs are single or double sided and not asymmetric

 

 

 

0x07

Verify all DIMMs are x8 or x16 width

 

 

 

0x08

Find a common CAS latency between the DIMMS and the MCH

 

 

 

0x09

Determine the memory frequency and CAS latency to program

 

 

 

0x10

Determine the smallest common TRAS for all DIMMs

 

 

 

0x11

Determine the smallest common TRP for all DIMMs

 

 

 

0x12

Determine the smallest common TRCD for all DIMMs

 

 

 

0x13

Determine the smallest refresh period for all DIMMs

 

 

 

0x14

Verify burst length of 8 is supported by all DIMMs

 

 

 

0x15

Determine the smallest tWR supported by all DIMMs

 

 

 

0x16

Determine DIMM size parameters

 

 

 

0x17

Program the correct system memory frequency

 

 

 

0x18

Determine and set the mode of operation for the memory channels

 

 

 

0x19

Program clock crossing registers

 

 

 

0x20

Disable Fast Dispatch

 

 

 

0x21

Program the DRAM Row Attributes and DRAM Row Boundary registers

 

 

 

0x22

Program the DRAM Bank Architecture register

 

 

 

0x23

Program the DRAM Timing & and DRAM Control registers

 

 

 

0x24

Program ODT

 

 

 

0x25

Perform steps required before memory init

 

 

 

0x26

Program the receive enable reference timing control register

 

 

 

 

Program the DLL Timing Control Registers , RCOMP settings

 

 

 

0x27

Enable DRAM Channel I/O Buffers

 

 

 

0x28

Enable all clocks on populated rows

 

 

 

Chapter 4

131

Page 141
Image 141
eMachines G430, G630 manual Post Codes, Sec Noevictionmodedebug EQU, CommonPlatform\sec\Ia32\SecCore.inc, Code Description

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.