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c3 error on phoenix bios v4 rev 6

centorph asked
Medium Priority
Last Modified: 2013-12-09
c3 initialize error display function  is my error code i get when using a post card but i dont have any video swaped agp card for pci card still no video
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Top Expert 2012

If you're not getting any video, it could be one of the following:

- motherboard shorting on case, or dust accumulation
- CMOS jumper set to CLEAR, instead of NORMAL position
- bad connections
- extra power connector not attached to motherboard
- faulty or inadequate power supply
- bad RAM, or wrong ones for your motherboard, or bad RAM slot (try in another slot)
- faulty video card
- bad motherboard
- bad cpu

What motherboard, cpu, and video card do you have, and did this setup ever boot before?  If so, what happened before it stopped working?


it worked for the customer for a few years running fine they said it just stoped working.
Top Expert 2012
Strip it down to a minimal configuration: Take the motherboard out of the case and put it on a nonconducting surface, like wood or a cardboard box.  Install one module of RAM, the cpu, and the video card, and reset the BIOS after installing the cpu.  Do not include hard disks, other PCI cards, or other peripherals.

If it doesn't start up, swap the RAM.
If it still doesn't start up, swap the power supply.
If it still doesn't start up, swap the video card.
If it doesn't start up at this point, you may have a faulty cpu or motherboard.  The cpu can be tested by trying it in another system; the motherboard really can't be tested, and you would point to it when everything else has been tested out.

Bad RAM:
Run the diagnostic program found at http://www.memtest.org/#downiso and see if it fails.  Even if it passes, that doesn't mean the RAM is good; only a swap with known, good working RAM will tell you that.

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