Post Codes

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

Chipset POST Codes

The following table details the chipset POST codes and functions used in the POST.

Code

Beeps

POST Routine Description

 

 

 

02h

 

Verify Real Mode

 

 

 

03h

 

Disable Non-Maskable Interrupt (NMI)

 

 

 

04h

 

Get CPU type

 

 

 

06h

 

Initialize system hardware

 

 

 

08h

 

Initialize chipset with initial POST values

 

 

 

09h

 

Set IN POST flag

 

 

 

0Ah

 

Initialize CPU registers

 

 

 

0Bh

 

Enable CPU cache

 

 

 

0Ch

 

Initialize caches to initial POST values

 

 

 

0Eh

 

Initialize I/O component

 

 

 

0Fh

 

Initialize the local bus IDE

 

 

 

10h

 

Initialize Power Management

 

 

 

11h

 

Load alternate registers with initial POST values

 

 

 

12h

 

Restore CPU control word during warm boot

 

 

 

13h

 

Initialize PCI Bus Mastering devices

 

 

 

14h

 

Initialize keyboard controller

 

 

 

16h

1-2-2-3

BIOS ROM checksum

 

 

 

17h

 

Initialize cache before memory autosize

 

 

 

18h

8254

timer initialization

 

 

 

1Ah

8237

DMA controller initialization

 

 

 

1Ch

 

Reset Programmable Interrupt Controller

 

 

 

20h

1-3-1-1

Test DRAM refresh

 

 

 

22h

1-3-1-3

Test 8742 Keyboard Controller

 

 

 

24h

 

Set ES segment register to 4 GB

 

 

 

26h

 

Enable A20 line

 

 

 

28h

 

Autosize DRAM

 

 

 

29h

 

Initialize POST Memory Manager

 

 

 

2Ah

 

Clear 512 KB base RAM

 

 

 

2Ch

1-3-4-1

RAM failure on address line xxxx*

 

 

 

2Eh

1-3-4-3

RAM failure on data bits xxxx* of low byte of memory bus

 

 

 

2Fh

 

Enable cache before system BIOS shadow

 

 

 

30h

1-4-1-1

RAM failure on data bits xxxx* of high byte of memory bus

 

 

 

32h

 

Test CPU bus-clock frequency

 

 

 

33h

 

Initialize Phoenix Dispatch Manager

 

 

 

36h

 

Warm start shut down

 

 

 

38h

 

Shadow system BIOS ROM

 

 

 

3Ah

 

Autosize cache

 

 

 

Chapter 4

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Acer 5515 manual Chipset Post Codes, Code Beeps Post Routine Description

5515 specifications

The Acer 5515 is a versatile and budget-friendly laptop that caters to the needs of students and casual users. It embodies a blend of functionality and portability, making it an attractive option for those seeking a reliable computing companion without breaking the bank.

The laptop features a 15.6-inch display, which delivers clear and vibrant visuals ideal for both work and entertainment. With a resolution of 1366x768 pixels, the screen provides adequate brightness and color reproduction, making it suitable for watching videos and browsing the web. The device's compact form factor ensures that it remains lightweight and easy to carry, making it an excellent choice for students who are always on the go.

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Storage options on the Acer 5515 often include traditional HDDs with substantial capacity, providing plenty of space for documents, photos, and multimedia files. Some configurations may also offer SSD options, which significantly enhance the system's responsiveness and boot times.

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In conclusion, the Acer 5515 is a solid entry-level laptop that offers a blend of performance, portability, and essential features, making it an excellent choice for budget-conscious users seeking a dependable computing experience. Its robust design, coupled with user-friendly technologies, positions it as a suitable option for a variety of everyday computing tasks.