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well it seems i have a problem with my new computer...i just tossed int he motherboard last night and installed everything, and im getting the 9.F error on the motherboard and it says video/agp error...i have changed out the vid card and same error (i tested origional vid card in there on my other machine, runs great) this is all before the bios and then reboots...any ideas?

Did you try updating your BIOS?
Could also be a power supply problem. What's the wattage & how many amps are on the +12v rail?
Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB

i dont know the 12v rail but the power supply is 420 watts...how would i update my bios when i cant even get my computer booted to the bios screen? do you mean buy a bios chip?

You'll find the amperage listed on a label on the side of the PSU.
Have you tried clearing CMOS?
The two things mentioned when searching Google are a weak PSU, & the need for a BIOS update. It appears that a lot of people have encountered the 9.F error.
To get around the possibility of a weak PSU, you could try temporarily disconnecting any hard drives, optical drives, or case cooling fans, & if you have multiple sticks of RAM, just use one. Then see if you can at least POST & get into the BIOS. And make sure that additional 4-pin square power plug is connected to the board.
I don't know what BIOS version you have, but there seems to be an awfully lot of fixes in the latest:
http://www.abit-usa.com/products/mb/bios.php?categories=1&model=175
http://www.abit-usa.com/images/AWARD_and_uGuru_POST_code.pdf
Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB

wow thanks for the reply...i dont know what version i have eather btu i cant even get to the point to even WANT to flash my bios...i think everything is good with pwr supply because everything boots ok untill i get a siren of one long and two short (i think or is it two short and one long?) well i looked it up and it comes to the agp thing and the 9.f also points to the agp thing...i think i might have a faulty board =/

A few tidbits I pulled from your manual:
NOTE: It is recommended to connect to a power supply with 350W, 20A +5VDC capacity at least for heavily loaded system, and 2A +5VSB capacity at least for supporting wake-up features.
WARNING: Turn the power off first (including the +5V standby power) before clearing the CMOS memory. Failing to do so may cause your system to work abnormally or malfunction.
We highly recommend that you clear the CMOS before installing a new motherboard. Please
move the CMOS jumper from its default 1-2 position to 2-3 for a few seconds, and then back. When you boot up your system for the first time, follow the instructions in the user's manual to load the optimized defaults.Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB

"everything boots ok untill i get a siren of one long and two short"
That usually indicates a video problem
http://bioscentral.com/beepcodes/awardbeep.htm
http://bioscentral.com/beepcodes/amibeep.htm
Asus A7N8X-X
1800+ @8x210mhz
512mb PC3200
Ti4200/8X 128mb
WDC 60GB

I had same problem. Are you connecting both ATX cables ie 12 pin and 4 pin? If you are and still get message then it's your bios which needs updating as older AV8's won't work with Winchester chips. I spoke to ABI and you can easily get a new bios chip from them. They told me I could get it from their website as it needs to be ordered via e-mail. Hope this helps

I got the same error,but this is way stranger, after installing a new heatsink and fan... thats right everything was working fine before. Now nothing, unfortunately i dont have a PC speaker either so cant get the peeps but it shows on start up 9C.. then switches off and says 9F. any ideas?

I solved the 9.F. problem -
I did not have the ATX12V (square, 4-pin) connector plugged in to the board. Once I did that it posted fine -

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