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Dead CPU or Motherboard, how to identify which?

post #1 of 13
Thread Starter 
Well, the topic says most of it.

Last month, I started encountering some trouble on my i7 setup.

Once I switch on the pc,the pc starts (motherboards lights on, fans on, gpu on)
and after 5 seconds it switches of and on again. (Like when you press the restart button)
It makes this step for about 5 times in a row and then switches on successfully.

It have done this for almost a month. Now the problem is that the tower stands on, (no reboots) but there is no signal going to the Monitor.
The monitor indicator remains orange.


What you this is the issue?
Is there and tests I can do to identify the root cause?

What I've done since now...

I tested the Video Card on another pc and it works great.
I tested the Monitor on my laptop vga output and works great.
Replaced cmos battery with a new one.
Connected the VGA with other voltage rail from the PSU.
Mounted the VGA to another PCI Slot.

What should I do next?

Sorry for my English....
Edited by Charlton22 - 5/5/11 at 5:47am
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post #2 of 13
i had that same problem almost and it was my motherboard.
But in the sake of the answers i got from here i will tell you others will say test power supply if possible.

good luck
newegg
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post #3 of 13
I had a similar problem with my 2500k setup and it was my RAM, it was just an issue with the timings so I managed to fix it easily, in your case it might be a dead stick; test each stick independently to see if you get a post.

Also you should try clearing the CMOS properly (there should be a procedure in your manual) because sometimes just taking the battery out doesn't work.
post #4 of 13
Thread Starter 
Thank you both for your reply, Regarding to my issue, I figured out that this is a very familiar issue with Gigabyte Ex-58 boards...

From the threads I read its a mother board issue....

Hope I could replace it with warranty....
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post #5 of 13
most of the time it is the motherboard. CPUs for some reason are quite tough, and it takes alot to kill them properly
post #6 of 13
Not that you should have to, but have you tried updating the bios to the latest? maybe they popped a fix for that into the current one.
post #7 of 13
Thread Starter 
Quote:
Originally Posted by Asmodean View Post
Not that you should have to, but have you tried updating the bios to the latest? maybe they popped a fix for that into the current one.
Its not possible... I cant get to the bios, the screen just remains black, with the monitor on orange indicator...
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Western Digital 1TB GP 32Mb 7200Rpm LG DVD-Writer 22X Dual Layer Windows 7 ACER 24" 1920x1080 16:9 
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post #8 of 13
Thread Starter 
RMAed the board as it was found to be faulty... How long does gigabyte take to test/replace and dispatch back?

Thanks
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Western Digital 1TB GP 32Mb 7200Rpm LG DVD-Writer 22X Dual Layer Windows 7 ACER 24" 1920x1080 16:9 
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post #9 of 13
Prolo dead board
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As ROCK!
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post #10 of 13
Thread Starter 
How long does gigabyte take to replace and dispatch back?
Gaming Rig
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Hard DriveOptical DriveOSMonitor
Western Digital 1TB GP 32Mb 7200Rpm LG DVD-Writer 22X Dual Layer Windows 7 ACER 24" 1920x1080 16:9 
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Gaming Rig
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CPUMotherboardGraphicsRAM
i7 920 Gigabyte GA-EX58-UD5 GTX 285 OCFU 6Gb DDR3 1600Mhz Corsair 
Hard DriveOptical DriveOSMonitor
Western Digital 1TB GP 32Mb 7200Rpm LG DVD-Writer 22X Dual Layer Windows 7 ACER 24" 1920x1080 16:9 
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