Applies to
EPox 8KHA+ Motherboards

Windows XP, 2000, Vista, 98, ME



7.96 MB

Driver Date & Version
n/a (n/a)


If you are encountering post code C3 during booting up your EPox 8KHA+ motherboard, you may be wondering the meaning of C3. Well, from 8KHA+ user manual, here is the meaning of C3 post code:

CFh Test CMOS R/W functionality.
C0h Early chipset initialization:
    -Di    sable shadow RAM
    -Disable L2 cache (socket 7 or below)
    -Program basic chipset registers
C1h Detect memory
    -Auto-detection of DRAM size, type and ECC.
    -Auto-detection of L2 cache (socket 7 or below)
C3h Expand compressed BIOS code to DRAM
C5h Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.
01h Expand the Xgroup codes locating in physical address 1000:0
02h Reserved
03h Initial Superio_Early_Init switch.

For extra information, please download and read mu-8kha&8kha+11.pdf user manual.

One possible reason that may cause this C3 problem for EPox 8KHA+ is a faulty BIOS chip. If you have changed any bios setting before or flashing new bios prior to the appearance of this C3 post code, you may want to check out EPox website for a replacement BIOS chip.

Download EPox 8KHA+ C3 Post Code here.

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