New PC Build Won't Power On - Yet another one!!

Hi all,

I'm tearing my hair out in the middle of the night as I've been working on this new PC all evening!

I've built up my new machine and come to turn on for the first time and nothing........ I'm at a loss!

First of all, I've built PC's before and never had any problem so this is new territory for me somewhat! I'll lay out the steps I've taken and if anyone can suggest something I haven't done, please let me know!

1) Fully assembled new PC build won't power on. After pushing the power on button, lights briefly illuminated before going out and then nothing. I disconnected the hard disk and DVD-drive and removed the graphics card leaving just the CPU installed.

2) Verified large power connector to mobo is fitted as well as the smaller 4 pin one. Upon turning on PSU, a green light on mobo appears indicating power is indeed being supplied to the mobo.

3) I then thought it could be a faulty switch on the case I've tried removing all headers and using a jumper to short the power on pins as well as using the Reset button instead, all to no avail.

I'm now at a total loss! I've got the absolute minimum installed, but despite the fact the green mobo light is telling me there's power to the board, nothing is working, no fans are on, diddly squat.

Anyone got any ideas???

Cheers!

Hmm, I'm gradually having to admit to myself this is the problem :-( I can't find anything else that could be wrong with it. Such a shame really I finally got the last component yesterday after having had the other parts for a few months and then this happens.... Hope it's still covered under warranty!

Yeah just done that, still nothing despite a brief moment of power :-( It's almost as if something is shorting somewhere causing the power to shut off

Ok sounds good. I don't have a spare power supply at home so I guess it means taking it into work tomorrow where we have some spares and try one of those out...

Will report back with any news!

sounds like the board has gone bye bye.

Ok, tried out a known good PSU on the motherboard and still nothing. Tried shorting the Power On pin (green lead) on the ATX connector and low and behold the PSU fan turns on so I've concluded my PSU is good. Looks like it's RMA time for the mobo. Thanks for all your suggestions! At least they proved I wasn't going mad!

Yeah cleared the BIOS and reset the jumper back to where it should be but didn't work :-( Last thing I'm gonna check before mailing it back for a return is that no fuses are blown on it or anything

Someone has just mentioned to me that perhaps the motherboard is not pulling down the power supply pin sufficiently to turn on? Does anyone know of this phenomena? I think some research is required this afternoon on Wiki!

More likely faulty, or uncompatible ram, then a bad mobo. What is the specs of your ram? Have you assembled you parts out of the system to be sure there isn't a short? Did you use the right amount of standoffs in your case and put then in the right spot? Did the standoffs come with paper washers, and if so did you use them? I hate to see you send back a mobo before everything has ben checked. Take your time and try to assemble outside the case with only one stick of ram. Double check the standoffs. What heatsink did you use? Did you take the plastic off of the heatsink? Its happened before. I dont think your dumb, I would just like you to get your pimp machine running today.

Have you tried using diff memory? Try a diff stick. I also agree about the static discharge. Alot of people do not belive this can ruin hardware when in fact it can. If trying a diff stick does not work,then i would RMA the board. Always touch something metal before handling hardware.With winter here theres always more static.I have had so many customers ruin vidio cards because of this.They just will not listen.

If the Ram is faulty it will behave the way that you are having. I'd try a different stick of ram, and then send the board back if it don't work.