Gigabyte EX58-UD3R Power Loop Problem

[grixtil]

Hi,

I've just got delivered a new PC setup.

Motherboard: Gigabyte EX58-UD3R
CPU: Intel Core i7 920 D0 Stepping
Memory: Corsair XMS3 6GB (3x2GB) DDR3 PC3-10666C9 - (TR3X6G1333C9)
PSU: OCZ StealthXStream 700w


I've connected all the parts together, hit the power switch, CPU and PSU fan switch on, stay on for a couple of seconds, then system turns off. After a couple of seconds, the system tries to boot up again on it's own, with the same results.

I've done the usual procedures, disconnect everything, connect just one memory module, same result. Disconnecting everything from the motherboard and leaving only CPU + Cooler connected results in the system staying switched on, but no error beeps to be heard from the case speaker.

Although the particular memory is not listed on the supported memory modules on Gibabyte website, but it is on Corsair website. http://www.corsair.com/configurator/product_results.aspx?id=847565

Guaranteed-Compatible Memory for your Gigabyte GA-EX58-UD3R-SLI
Enthusiast TR3X6G1333C9

I've tried:

• All Memory + GFX + Power Connectors - On for a few seconds, then off, loop
• One Memory + GFX + Power Connectors - On for a few seconds, then off, loop
• No Memory + GFX + Power Connectors - On, no beeps, no picture
• No Memory + No GFX + No 12V Power Connectors - On, no beeps, no picture
• One Memory + GFX + One 12V Power Connector - On, no beeps, no picture

I'm lost, any help is greatly appreciated.

 

[grixtil]

No one ?

 

[RJC]

Does seem like a faulty motherboard, how long did you leave the board trying to boot, ie did you let it do it 3 times.
Tried a CMOS reset.

 

[grixtil]

Tried a CMOS reset, at the moment I've disconnected the battery and will leave it for a couple of hours to make sure. I'll try leaving it boot for more than 3 times as I'm not sure about that, although most probably I did as I've been playing around and trying for ages now.

 

[OLDPHART]

My son,s PC had the same prob start-stop, start stop, start-stop, it turned out to be a faulty CPU.

 

[grixtil]

I'm gonna try and send back PSU, Memory, CPU and Motherboard as RMA back to OCUK and let them figure out which part is the problem. Hope that works and doesn't take too long.