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Sure-fire symptoms of dead motherboard ?

Last response: in Motherboards
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August 19, 2011 3:25:16 PM

Sorry for the newbish question and I know you have to do troubleshooting and elimination on all *possible* motherboard problems.

Are there any symptoms where it's a very sure bet it's the motherboard and not the PSU or memory or CPU, etc ?

If not, I apologize for the newbish question. Thank you very much for your time.

Steve

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a c 716 V Motherboard
a b à CPUs
a c 347 } Memory
August 19, 2011 6:52:30 PM

I wish there was a 100% guaranteed way to determine a failed/bad MOBO. The only 100% is to replace ALL of the components with compatible + known good components. Example: RAM, PSU, GPU is no onboard VGA, and CPU -- and then only in a FULL BREADBOARD which means no headers connected e.g. USB, Audio & Front Panel.

Failure Rates on older systems:
1. PSU
2. RAM
3. MOBO
4. GPU
5. CPU
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a b V Motherboard
a b à CPUs
a b } Memory
August 19, 2011 7:25:39 PM

The only 100% way I know to say it is the motherboard is watching the smoke escape from the motherboard. Once the genii is out of the bottle it refuses to go back in.
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a c 716 V Motherboard
a b à CPUs
a c 347 } Memory
August 19, 2011 7:40:48 PM

Yeah true, here's a MOBO from one OP I helped - a truly 'toasted' MOBO.

Sure 'FIRE' way:
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August 19, 2011 10:20:35 PM

Best answer selected by steve2470.
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August 20, 2011 9:01:20 AM

Quote:
Failure Rates on older systems:
1. PSU
2. RAM
3. MOBO
4. GPU
5. CPU
From my experience I'd invert number 3 and 4. GPUs tend to fail way faster than a motherboard and for many reasons.
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a c 716 V Motherboard
a b à CPUs
a c 347 } Memory
August 20, 2011 2:10:53 PM

I myself had to grapple with MOBO & GPU failure rates, and up until LGA 1155 would have agreed - 3. GPU & 4. MOBO. Excluding the B2 recall, the MOBO failure rate post LGA 1155 is significantly higher for MOBO than GPU.

However, lately the MOBO failure rate has been leveling-off.

Ask me again in 6 months and the answer might be different.

I stick by my rating.
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