My system:
Power supply: Cooler Master 550W RS-550-PCAR-E3
RAM: 2 times Corsair 1GB DDR2 PC-5300
Videocard: Inno3D GeForce 7950GT 256mb
CPU: AMD Athlon 64 X@ 5600+ Dual Core 2.2Ghz
First off ill say that my system has been running for about 4 years with only one major problem (power supply died and was upgraded, more info later).
Always had the 9.0 Post error on startup which led me to always turn the power supply off at the switch untill the LEDs turned off, then powered it up, held power button for 8 seconds to turn off and finaly when the power button was pressed again it would boot up as normal. This wasnt a problem for me as it led to better security against my less tech savvy family.
Everything was running normal today, nothing out of ordinary when I had to turn off my system for a couple of hours and when I came back my usual startup routine didnt work. Upon checking the POST screen I found that I was continually getting the 9.0 and C1 errors.
After 6 odd hours of googling and reading related posts I now know I am well out of my depth on this matter.
What I have come to think (from reading those forums), it could be any of these but I am unsure of how to check which:
-Power supply problem
-RAM problem
-Videocard problem
-BIOS chip problem
Processes ive done:
1. cmos discharged, with and without battery.
2.Tried 1 stick of RAM in each of the 4 slots.
3.Tried 1 stick of 1.8v RAM brand was King something 2GB in all 4 slots.
4.Praying to the machine gods.
Power supply problem from above, about a year ago 350W Antec smart Power supply burnt out after 3 years, for those counting. Upgraded to the supply mentioned in specs at top.
Thanks