New mobo won't boot (video)

I bought a new motherboard, cpu and ram to update some ageing components but they new kit isn't working.

The processor is an Intel Pentium G850 and Ram is 2x4gb Corsair 1.5v DDR3 (1333mhz)

The Motherboard is a Gigabyte h61m-s2pv: http://www.gigabyte.us/products/product-page.aspx?pid=4065#sp

The power supply I have been using up until this point is an OCZ 600w: http://www.ocztechnology.com/ocz-600w-stealthxstream-power-supply-eol.html

I will continue using my GTX460 to complete the build as a mid-range gaming PC and college assignment workhorse.

I installed the mobo in the case, installed the CPU, installed the ram, fitted the power, reset, speaker cables and connected the ATX 10x2pin + 2x2 pin for the mobo power and a separate 2x2 CPU power pin for CPU power.

This video shows the result, this is the best it gets, sometimes I get nothing, sometimes I get just a few quarter fan turns every few seconds. The crazy noise is the mobo speaker. Sometimes the whole thing will die, in this video I think it survived after the camera ran out. Connecting the GPU and HD doesn't seem to affect anything.

[youtube]zacWiPDI3nY[/youtube]

I've tried:
Resetting the CMOS
Testing the PSU with my old kit (asus am2 board, athlon 5200+, 4gb ddr) - it runs fine.
Running with base components and fully built
Double checking CPU is seated correctly

Any suggestions for why it isn't working, other than a bad motherboard?

Many Thanks

 

After a quick look at the video it looks like you connected a PCI-E power connector to it, it must be a proper 8pin ATX 12V motherboard power connector.

It shouldn't even fit so I can only assume you've jammed it in there,the ATX connector is a single cable and a single connector with the plastic shaped pins on the opposite side of a PCI-E connector,it doesn't have two output like in the video.

You may have permanently damaged your motherboard sorry

 

Sorry for the quality of the video but it isn't a PCI-E, it is an 8pin ATX split into 2, 4-pins which I used one of, which fit perfectly, same as my old board. I can assure there was no jamming in! It looks like this:

http://www.techpowerup.com/reviews/Zalman/ZM850-HP/images/12v.jpg

http://freemanhardwares.webs.com/p4.jpg

 

Well that's a relief I was feeling sick for you:-D

There sound's like there's something wrong due to speaker noise but it's impossible to say as there isn't an error code.

For testing you should only use one stick of memory,don't connect the hard drive or any add in cards, can't see a video card in there either? Without a video card you will get an error noise from the PC speaker so does the noise change when it's connected? You can't troubleshoot without a video card.

If it is indeed a defective motherboard or cpu there is no way to troubleshoot beyond putting the cpu in another motherboard or swapping the cpu for a known working one.

 

Haha no I was very gentle, delayed my build 2 days while I waited for my antistatic wristband and completely cleaned my machine, built on a wooden table with a wooden floor.

I'll try with 1 stick of ram, I have only tried with both or none. I've tried with and without the video card, the card spins up to speed but there is no video output.

If trying it again with 1 stick of ram doesn't work then that is as far as I can go, I don't have a compatible motherboard or CPU for testing, I'd probably see if I can send them both back, maybe the RAM too as I can't determine which has a fault.

 

Read your motherboard manual to see which slot one stick of memory goes in,it's usually dimm 0 but try all of them.

Once you have the video card back in 'check the video card has it's power connector connected' and one stick of ram in the right slot try to boot,if no turn off the power to the psu and disconnect from AC,turn the pc on to drain any remaining power 'the lights may turn on briefly and the fans spin' then remove the cmos battery for 30 seconds then replace,reconnect everything and try to boot.

Swap the ram over to the other stick and repeat.

Do you have another video card to try?

Another basic tip is to remove the motherboard and check there are no brass standoff's in the wrong place or screws underneath the board shorting it but that's clutching at straws you sound like you know what your doing.

 

Thanks for your assistance in this. I'll follow these steps, I had to remove the battery on my current mobo to get it working again after reinstalling!

As it goes I do have a faithful old 8600gt to try, I can't remember if I've tried it in the new motherboard, I'll give it a go.

Regarding the pins, I was aware of potential shortages and it was simply moving a couple to go from standard to microATX layout, so unfortunately its not that.