I built my new computer last night, however it won't start. There is power to the motherboard, because I can hear and see the fans when I turn it on, it also beeps when I pull the graphics card so I think the board posted OK, however the Heatsink fan doesn't move. It initially spins a rotation or two and that is it. It does the same thing when I power it off, just a initial spin or two and then it stops. Any ideas...I would be so grateful. Here are my system specs.
One thing I did notice on the power supply, and I'm sure this is normal or not, but on the 24 pin connector (the PSU has a 20+4) I noticed there is no wire going to to one of the pins, it is just blank, that could just be how it's supposed to be though
no, it shouldnt fry anything. it should shut down before that happens
I know its alot of work, I had to do it yesterday, so believe me I know.
But what you need to do is take the motherboard out of the case. attach the power cables to it. one stick of ram. videocard and cpu and heatsink.
thats it. no drives, nothing. see if it posts. If it does then you have narrowed it down tremendously.
once you know it posts with one stick. take that one out and put in the other. see if it posts. now you know you can at least get into the bios.
from there you can add things one at a time and see if it posts.
one thing I would do before I added things is run memtest86. it could be a memory problem. google it and you will find it. look for the bootable iso file. then burn it to a cd<use the burn image to disk option, dont just copy it. leave one stick of ram in and put the cd in your drive. turn on computer and it will boot to cd and memtest will run. run it for 1-2 hours on each stick, test 5 I beleive. if it tests with no errors your ram should be good.
then start adding things one at a time. my problem turned out to be the onboard videocard< I hope, its still running prime95 to test it>
also, did you attach the MB standoff's to the case? that could short it out.
but unfortunately, as I found out yesterday, there is no easy way to do this. I spent 12 hours yesterday doing it. no shortcuts and one step at a time or you wont narrow it down.
I had a similar issue when I fired up my new build for the first time yesterday. I originally connected my 3 pin heatsink fan connector to the 4pin CPU fan connector on the motherboard like you did. I figured one of the pins just wouldn't be used. But when I powered everything up the heatsink fan wasn't spinning.
I moved the heatsink fan connector to a 3pin SYSFAN1 connector on the motherboard and it worked fine.
Have you tried testing it out the box like mweidler said? hes completely and utterly correct. this eliminates shorts from the case and allows for quick testing and trouble shooting and it not that much work.
On the ram side of things start with one stick first and then move up.
this happened to me once because my frontpanel wires where shorting. also one unpaired ram can result in problems like this in dual channels so i hear...