Comp wont turn on :(

Pulsedriver · 14 Nov 2006 at 21:30

Hi folks,

I changed my case today, went from a Thermaltake Armor to an Antec 900.

Anyway!

All installed OK, BUT the darn thing wont turn on!

There is power to the mainboard, as the green LED on the board lights up.

But the thing wont turn on! I've tried changing the case power connector other way round etc still no joy.

I've noticed I dont have a PWR LED cable...Which seems strange?

I have

PWR SW
RESET SW
HD LED

IF I didnt have the LED cable im sure it would still turn on wouldnt it???

Any ideas whats wrong?

I've checked all power connectors on the board, all seems ok

GeForce · 14 Nov 2006 at 21:37

Have you tried shorting the POWER_SW header on the motherboard with a screwdriver?

Jon

Pulsedriver · 14 Nov 2006 at 21:45

just puttin a screwdriver on them so its touching both pins yea? Tried that didnt work

wiggy · 14 Nov 2006 at 21:55

Have you tried the power switch on the mobo if it has one?

Pulsedriver · 14 Nov 2006 at 21:55

Doesnt have one, ASUS P5 WH

Pulsedriver · 14 Nov 2006 at 22:06

No joy folks, any other ideas?

wiggy · 14 Nov 2006 at 22:10

Are you sure its not shorting on anything, bare cables etc? Did you ground yourself before install?

Pulsedriver · 14 Nov 2006 at 22:19

I ground myself yea I guess the only way is to take it out the case and try it and see if that works.

Surely if it was shorting, the green LED on the motherboard would not light up...?

LoadsaMoney · 14 Nov 2006 at 22:26

You tried it all out of the case.

Pulsedriver · 14 Nov 2006 at 22:34

Gonna do that now

Really didnt want to have to do that

Took me ages to get it all neat

wiggy · 14 Nov 2006 at 22:45

I know i had to strip mine the other day, due to boot problems, rewired it up today and took me an hour. Cured the problem though.

Pulsedriver · 14 Nov 2006 at 22:46

OK...

I took the board out and placed it on a wooden floor.

I connected nothing except for

24 Pin power connector
4 Pin CPU power connector.

It wont turn on?

Just that green LED light on the board itself.

Surely I dont need to plug more stuff in, as I just need to see if it turns on not boots up.

wiggy · 14 Nov 2006 at 22:58

No dont remove anything else, it just rules out shorting. Anyone else like to help?

Pulsedriver · 14 Nov 2006 at 23:03

I get this feeling im gonna have to buy a new motherboard...

wiggy · 14 Nov 2006 at 23:05

Just what i was thinking. Somehow you must have damaged it. Is the psu ok?

Pulsedriver · 14 Nov 2006 at 23:06

The option I have is to test the PSU by borrowing one from the pc in the other room. I'll have to try that first.

The PSU was brand new though before today...

I did snap the retainer clip from the pci express slot earlier when removing the gfx card but that shouldnt affect anything as its just a plastic clip.

wiggy · 14 Nov 2006 at 23:11

The clip wouldnt make much difference as you say, it would still power up. If the psu is new then its unlikely that is at fault. Mobo calling me thinks.

Pulsedriver · 14 Nov 2006 at 23:12

Do you think I could RMA it to ASUS (or e-tailer I bought it from) or would the broken clip void the warranty?

I was thinking to just buy another board, and RMA the ASUS, when it gets back sell it on as I wont want all the palava of installing everything again.

wiggy · 14 Nov 2006 at 23:24

I think they will refuse it under mis-use due to the broken clip. Its not a manufacturing defect that has caused it. Worth a go, nothing to lose. One thing thats bugging me is that mobo's are pretty hardy, unless it was knocked or something was dropped onto it, i just cant see how its failed. Maybe do a search on google.

Pulsedriver · 15 Nov 2006 at 00:42

Update...

I tried a different PSU...Voila it turned on straightaway

Although it did spark from where I shorted the PWR connectors on the board and smelt like a spark! Is that supposed to happen!?

Anyway, so it looks like the PSU is faulty, how unlucky, it was brand new and sealed as well!