Computer won't power on

[Shawn]

I just built a new computer w/ the following components:

abit IS7-E board
P4 2.4GHz, 800MHz FSB
2 x Corsair VS256MB333 256MB DDR333 PC2700 mem
Radeon 9000 AGP 64MB DDR Video Card
40G hard drive
Antec 300W power supply

After the computer was completely assembled I turned the main power on
from the back and pressed the soft power button on the front. The
motherboard fan, cpu fan, and case fan spun for half a second and then
nothing. There is a green light on the board indicating that the
board has power. This light stays on as long as the main power switch
is on as it should. There is also a red light indicating system power
which only flashes once when the fans turn.

I've been all over these boards looking for help and everything I try
yields the same result as above. Can anyone offer me some insight?
Could this be a problem w/ the power supply? The board is correctly
attached to the case using the offsets, I've even unplugged
EVERYTHING except the cpu fan as I red in one thread and the same
thing happens. Please help.

Thanks!

 

[Sandy]

Sounds like something on the MB may be grounding against the case.
Pull the MB and put it on cardboard or some non-conductive surface if you
want to check.

 

[JAD]

all connectors plugged securely, all pigails accounted for?
can you try another PSU?
Reseat the video card that board needs a 'pop' when the card in fully inserted.
reseat memory
if there are no beeps have you hooked up the speaker?
this happens when there is only CPU and FAN? again 'no beeps'?
try shorting the CMOS jumper and clear it-did you move any jumpers? jumperless board?

 

[KC Computers]

I just built a new computer w/ the following components:

abit IS7-E board
P4 2.4GHz, 800MHz FSB
2 x Corsair VS256MB333 256MB DDR333 PC2700 mem
Radeon 9000 AGP 64MB DDR Video Card
40G hard drive
Antec 300W power supply

After the computer was completely assembled I turned the main power on
from the back and pressed the soft power button on the front. The
motherboard fan, cpu fan, and case fan spun for half a second and then
nothing. There is a green light on the board indicating that the
board has power. This light stays on as long as the main power switch
is on as it should. There is also a red light indicating system power
which only flashes once when the fans turn.

Did you plug in both the 20-pin and 4-pin power connectors?
Not plugging in the 4-pin one can cause some boards not to
start up.

 

[Shep©]

On 2 Oct 2003 10:13:43 -0700, In this world we created

I just built a new computer w/ the following components:

abit IS7-E board
P4 2.4GHz, 800MHz FSB
2 x Corsair VS256MB333 256MB DDR333 PC2700 mem
Radeon 9000 AGP 64MB DDR Video Card
40G hard drive
Antec 300W power supply

After the computer was completely assembled I turned the main power on
from the back and pressed the soft power button on the front. The
motherboard fan, cpu fan, and case fan spun for half a second and then
nothing. There is a green light on the board indicating that the
board has power. This light stays on as long as the main power switch
is on as it should. There is also a red light indicating system power
which only flashes once when the fans turn.

I've been all over these boards looking for help and everything I try
yields the same result as above. Can anyone offer me some insight?
Could this be a problem w/ the power supply? The board is correctly
attached to the case using the offsets, I've even unplugged
EVERYTHING except the cpu fan as I red in one thread and the same
thing happens. Please help.

Thanks!

Pull power cord and clear CMOS(Important as ATX BIOS cannot be cleared
with power to the board.If PS has isolator switch use that).
Make sure CPU FAN is connected to the correct MB header as some boards
will not boot unless it is!(Fan failure protection).
If two sticks of RAM try each separately in each correct slot.


HTH



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