Help - new built PC won't power up

[thecrow]

I can't get my PC to power on. I get a green LED on the motherboard,
but that's all... no fans, not even on the power supply. Anybody have
any ideas?

First thing I want to know is... should the power supply fan at least
spin even if everything else is hosed? Will a working PSU spin its
fan even if not connected to the mobo?

My config..

PSU - Antec Neo HE 550
Mobo - Asus A8N-SLI
CPU - Athlon X2 4800
RAM - 2x 1GB Corsair DDR

Help appreciated... this is disappointing, figured that hardware had
come a long way since I last did this.

 

[JAD]

video card needs xtra power connector
memory is not seated properly
In some circumstancs the PSU fan can spin while the mainboard is smoked
PSUs need a jumper across the MB connector at certain points to power on

As we always say....strip it down to the minimal boot hardware

 

[Patty]

I can't get my PC to power on. I get a green LED on the motherboard,
but that's all... no fans, not even on the power supply. Anybody have
any ideas?

First thing I want to know is... should the power supply fan at least
spin even if everything else is hosed? Will a working PSU spin its
fan even if not connected to the mobo?

My config..

PSU - Antec Neo HE 550
Mobo - Asus A8N-SLI
CPU - Athlon X2 4800
RAM - 2x 1GB Corsair DDR

Help appreciated... this is disappointing, figured that hardware had
come a long way since I last did this.

Check to make sure the motherboard is not shorting to the case somewhere.
A good way to do this is to take it out of the case and place it on a flat
surface on top of the anti-static bag it came in. Leave only the CPU, RAM
and video card installed. Also make sure you have the CPU fan on the
correct fan connector on the motherboard. Try to power up the board and
see if it tries to boot. If it does, then check your connectors and
standoffs for your case.

Patty

 

[tom hunt]

Check to make sure the motherboard is not shorting to the case somewhere.
A good way to do this is to take it out of the case and place it on a flat
surface on top of the anti-static bag it came in. Leave only the CPU, RAM
and video card installed. Also make sure you have the CPU fan on the
correct fan connector on the motherboard. Try to power up the board and
see if it tries to boot. If it does, then check your connectors and
standoffs for your case.

Patty

I thought anti-static bags were conductive. Isn't the idea of the bag to
keep everything at the same ground level. If this is the case, powering
up a board sitting on an anti-static bag would be disastrous. Please
correct me if I'm wrong.

thanks

 

[nos1eep]

It is further alleged that on or about Sat, 07 Jan 2006 17:34:38 GMT,
in alt.comp.hardware.pc-homebuilt, the queezy keyboard of tom hunt
<[email protected]> spewed the following:

|Patty wrote:
|
|> Check to make sure the motherboard is not shorting to the case somewhere.
|> A good way to do this is to take it out of the case and place it on a flat
|> surface on top of the anti-static bag it came in. Leave only the CPU, RAM
|> and video card installed. Also make sure you have the CPU fan on the
|> correct fan connector on the motherboard. Try to power up the board and
|> see if it tries to boot. If it does, then check your connectors and
|> standoffs for your case.
|>
|> Patty
|
|I thought anti-static bags were conductive. Isn't the idea of the bag to
|keep everything at the same ground level. If this is the case, powering
|up a board sitting on an anti-static bag would be disastrous. Please
|correct me if I'm wrong.

Some anti static bags are conductive and yes, placing a mobo on them
can be disasterous. Sometimes the cardboard box that the mobo is
packaged in is conductive as well.
Here are a couple of links:
http://www.3m.com/market/electronic/ehpd/technical_papers/article03.jhtml
http://www.ece.rochester.edu/~jones/demos/shielding.html