New Build - Not working! Please help!

DAnDan

DAnDan

DAnDan

Soldato
Joined
22 Feb 2008
Posts
4,473
New Build - Not posting! Please help!

Hello all, thanks for the help :)

I recently built my new rig after ages of waiting, and it all worked fine, but then, it went wrong.

The setup is;

E4500 Processor
Gigabyte GA-P35-DS3L Intel P35 Mobo
ATI 3870 XT GPU
2GB Giel Ultra low Ram
Better cooler than stock
160 and 400GB Sata HDDs
500W OCZ PSU

Everything there is within around 2 weeks old except the 400GB HDD.

I build it all, and powered it up, worked perfectly, installed XP and a few programs, then powered it off to plug in the case fans. But after that,the problems started!
It powers up, for about 3 seconds, and then powers off for about another 2 second, and then repeats.

I've tried everything I can think of;
Cleared CMOS by shorting the pins, and also removing battery overnight,
Booting with 1 stick of ram, different slots, different stick, you name it,
Booting with 1/2/no HDDs, tried old IDE drive aswell,
Taking everything off the board, I mean everything except the CPU + cooler!,
Removed board from case and rebuilt from bottom up,
Powering on by shorting the power pins,

I can't think of anything else that could have done it!

If I remove the 12v ATX cable from the top of the mobo it stops resetting, but doesn't do anthing else, so that's no help.

Please help me! Im sure someone far more knowledgable than I am can shed some light on this for me, as I'm getting very depressed by it all now!

Thanks :)
 
Last edited:
Anyone please?

I just resat the CPU and it made no difference, starting to think the motherboard must be gone, but I dont see how it can be, as it worked fine until I plugged in the case fans, but they're molex, so dont affect the mobo...
 
Okay well as im stuck for what it could be, any nobody else seems to know, I'm going to send the board back, get it swapped. Hopefully that will fix it :)
 
RMA the board is the best option. have you tried fitting all the parts into an older mobo and seeing if they post. if so then it will be the mobo
 
Does the mobo have a 4 pin molex connector? If so can you try starting up with it disconnected or even pulling it out whilst the systems going through the boot-restart process.
 
Nope it doesn't, it has the 4 pin 12v atx if that's what you mean, if I pull that out the reboots stop, but it doesn't seem to actually be doing loading anything
 
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