your board has 1 led that lights for indicating stand by power is available
(power supply is on and AC power is present but the board is not actually
powered on) and a second LED that lights when you actually power the system
on.
a normal sequence for POST would include one beep.
for the issues you are describing, I would try to pin down where any odd
physical noises are coming from. it is not at all uncommon, for example, to
have the Northbridge fan start to make noise on these boards. try to
isolate where the noise is coming from even if it means unplugging other
devices or fans to decrease ambient noise. of course, be careful about
disconnecting the CPU cooling fan as it won't take long to overheat without
a fan.
from there, if you are still having issues with the system not booting, you
can strip out any add-in PCI cards and take the system down to bare
essentials consisting of video, ram and cpu. you can even disconnect the
hard drive ribbons and power supply plugs to eliminate loads and devices
connected to the mainboard and then see if it will at least boot.
if it still doesn't boot, then you need to look at what sort of symptoms you
have such as fans spinning up or not (no fans would indicate a power supply
not coming up and I would check for this even before stripping things down,
then recheck if the fans didn't originally spin as I was taking off loads to
see if they eventually do come on when trying to boot).
remember that unless you physically turn off the power supply or remove AC
power, there will likely be standby power on the board. do not disconnect
or remove components while the power supply is live. there are plenty of
different paths this type of thing can take so post back with any additional
details you come up with to assist with troubleshooting.
--
Thomas Geery
Network+ certified
<a style='text-decoration: underline;' href="ftp://geerynet.d2g.com" target="_blank">ftp://geerynet.d2g.com</a>
<a style='text-decoration: underline;' href="ftp://68.98.180.8" target="_blank">ftp://68.98.180.8</a> Abit Mirror <----- Cable modem IP
This IP is dynamic so it *could* change!...
over 130,000 FTP users served!
^^^^^^^
"James" <jliang.TakeThisOut@sandia.gov> wrote in message
news:1112313077.469958.42510@o13g2000cwo.googlegroups.com...
> I've owned a home-built computer for about a year now and have just
> started having problems with it. Yesterday, I started hearing wierd
> noises out of the PC that I could not identify and my computer hung on
> boot when I tried rebooting.
>
> When it tries to start up again, I hear a strange series of beeps
> noices before it just hangs and there is also a strange sound coming
> out of my PC somewhere.
>
> I've dusted my entire PC and checked the processor fan, graphics card
> fan, MCH fan, and case fan, and I think, by elimination, it may be
> something with the fan in the power supply.
>
> When I try to start up it, a red LED next to the power and reset pins
> on my motherboard lights up.(VCC, I think...)
>
> How can I fix this problem from here? How do I find out the meaning of
> the POST beeps? Are there any other instruction manuals other than
> the generic one provided on the Abit website?
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