motherboard works outside case but not inside

[rh535]

I just got my motherboard back from rma (Asus P5W DH Deluxe). I put it inside my case( Antec P180) and i get nothing on the screen but when i take it out i get something on the screen. Im pretty sure it is a grounding issue so i took out the motherboard and put it back in (4 times) and still does the same thing. Any ideas?

 

[PVTCaboose1337]

I am pretty confident you forgot to add the risers...

 

[p_o_s_pc]

Don't forget to add the stand-offs (risers) i did that before with an old rig when switching cases.

 

[francis511]

if you have teh risers in then check cpu

 

[p_o_s_pc]

what would teh CPU have anything to do with it?

 

[francis511]

ah`m jest sayin` .and where is rh535 ??

 

[PuMA]

use raisers anf make sure the screwes are tightened correctly(so that they got good contact to the grounding thing outside the screw hole)

 

[mitsirfishi]

your earthing somewhere on the motherboard with some of the studs which are screwed in ive done it before one was in direct contact as it wasnt lined up with one of the board screws ;P easy mistake to make if not use those spacers depending on how you connect your board but probilly using studs just make sure you dont have any excess ones when you line you board

 

[rh535]

I do have standoffs installed on all screws. On the motherboard where you install the screws it looks like little silver dots and some holes(4-5)I can see a bronze/motherboard color showing instead. Could that be the problem?

 

[gerrynicol]

Can you post a pic of the mobo inside the case?

 

[hat]

Cursed case...

 

[Dippyskoodlez]

I do have standoffs installed on all screws. On the motherboard where you install the screws it looks like little silver dots and some holes(4-5)I can see a bronze/motherboard color showing instead. Could that be the problem?

A picture would be most useful.

 

[panchoman]

try installing some rubber washers before you install the screws, the screw might be hitting something on the mobo. does your mobo work with it being attached the removable mobo tray like you've shown in the pic?

 

[DaMulta]

A picture would be most useful.

Not everyone has a tray

 

[3991vhtes]

Not everyone has a tray

I don't

 

[panchoman]

I don't

isn't that your removable mobo tray that the mobo is sitting on in the pic? is it possible that the mobo's io panel is getting grouned to the io shield?

 

[Dippyskoodlez]

isn't that your removable mobo tray that the mobo is sitting on in the pic? is it possible that the mobo's io panel is getting grouned to the io shield?

I posted that It was a random pic, and it appears to be mounted on some plexiglass, rather.


However, if you get a power on, but no POST, you might have a bunk component.


I had a gigabyte mobo that would appear to be "shorting" all the time, but occasionally booted up.


Put in a new GPU and BAM! it acted like it was brand new and worked flawlessly.

 

[panchoman]

oh lol, didn't c that you put the pic up dippy. rh, when you plug everything in and run the whole system outside the case, does it work?

 

[rh535]

It turns on and everything but just nothin on the screen. What kind of rubber washers do i did?(what size?)

 

[panchoman]

well before we do the washers, outside the case, your system wont POST? grafix card and all attached?
we need to first get the system working before we try putting into the case, which is a whole other problem.

 

[rh535]

My computer will post outside my case with mem,motherboard,cpu and gpu attached. I also get stuff on the screen when its outside the case.

 

[panchoman]

hmm, so heres what i think might be possible, though they may sound ridicously crazy

a. standoffs/screws are touching the mobo, if so rubber washers will be needed

b. i/o panel of mobo grounding to the i/o shield?

c. pci brackets grounding? like electricity going from the grafix card to the pci bracket things and grounding to your case?

do you have a removable motherboard tray?

some pictures would really help....

 

[bigboi86]

hmm, so heres what i think might be possible, though they may sound ridicously crazy

a. standoffs/screws are touching the mobo, if so rubber washers will be needed

b. i/o panel of mobo grounding to the i/o shield?

c. pci brackets grounding? like electricity going from the grafix card to the pci bracket things and grounding to your case?

do you have a removable motherboard tray?

some pictures would really help....

The I/O shield and panel are supposed to be grounded. The entire chassis of a case is ground... so when a shield touches the case, it's grounded, and when the terminals touch the shield it's grounded also.

 

[p_o_s_pc]

The I/O shield and panel are supposed to be grounded. The entire chassis of a case is ground... so when a shield touches the case, it's grounded, and when the terminals touch the shield it's grounded also.

I kind of agree with that. I had forgot to put in the I/O shield and the board touched the case and it didn't start. Bigboi86 try testing to see if the shield is conductive but take it out of the case first.

 

[panchoman]

i just thought you know other then the standoffs, the only other metal things that the mobo touchs are the io shield and the pci bracket. if theres something screwed up with the mobo and the electricity it going to the i/o ports/panel, the i/o sheild touchs them and it touchs the case and its metal you know. same with the metal pci bracket, though thats not very likely..