Thunder i7525 (S2676)
Appendix II: Post Error Code for BIOS
5-9
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37h:
Test DMA Channel 1.
39h:
Test DMA page registers.
3Ch:
Test 8254
3Eh:
Test 8259 interrupt mask bits for channel 1.
40h:
Test 8259 interrupt mask bits for channel 2.
43h:
Test 8259 functionality.
47h:
Initialize EISA slot
49h:
1. Calculate total memory by testing the last double word of each 64K
page.
2. Program write allocation for AMD K5 CPU.
4Eh:
1. Program MTRR of M1 CPU
2. Initialize L2 cache for P6 class CPU & program CPU with proper
cacheable range.
3. Initialize the APIC for P6 class CPU.
4. On MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical.
50h:
Initialize USB Keyboard & Mouse.
52h:
Test all memory (clear all extended memory to 0)
53h:
Clear password according to H/W jumper (Optional)
55h:
Display number of processors (multi-processor platform)
57h:
1. Display PnP logo
2. Early ISA PnP initialization
-Assign CSN to every ISA PnP device.
59h:
Initialize the combined Trend Anti-Virus code.
5Bh:
(Optional Feature)
Show message for entering AWDFLASH.EXE from FDD (optional)
5Dh:
1. Initialize Init_Onboard_Super_IO
2. Initialize Init_Onbaord_AUDIO.
60h:
Okay to enter Setup utility; i.e. not until this POST stage can users enter
the CMOS setup utility.
63h:
Reset keyboard if Early_Reset_KB is not defined.
65h:
Initialize PS/2 Mouse
POST (hex)
Description
67h:
Prepare memory size information for function call: INT 15h ax=E820h
Summary of Contents for THUNDER I7525
Page 11: ...Thunder i7525 S2676 http www tyan com 8 3 1 Key Component View...
Page 12: ...Thunder i7525 S2676 http www tyan com 9 Fig 3 1 Thunder i7525 S2676 Key Component View...
Page 18: ...Thunder i7525 S2676 http www tyan com 15 Pin Function 1 NC 2 LED2 3 LED2 4 NC P29...
Page 33: ...Thunder i7525 S2676 http www tyan com 30 System Information View system information...
