Tom's Hardware > Forum > Motherboards & Memory > Gigabyte > [Solved] Gigabyte GA-P55-UD4P Problem

[Solved] Gigabyte GA-P55-UD4P Problem

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Best answer from evongugg.

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dalto   09-18-2009 at 08:18:52 AM

Decided it was time for an upgrade so I bought an i7 860, some RAM and a Gigabyte GA-P55-UD4P. I have had the machine setup for a few days and all has been well. Got everything installed happily.

Today, I come back after lunch and the machine is running and there is no video. I reboot, nothing.

I removed every plug and connector except power and video. Nothing. No video, no beeps, nothing.

I tried switching and reseating RAM, nothing.

Can anyone give me some insight into what might be wrong or what I can try next?

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Best answer from evongugg
Try building outside the case with cpu, beeper and power. Listen for beeps.
Keep adding components and listening for beeps. When you get no beeps there is the problem.
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evongugg   09-18-2009 at 02:45:15 PM
Best answer

Try building outside the case with cpu, beeper and power. Listen for beeps.
Keep adding components and listening for beeps. When you get no beeps there is the problem.

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Bronze Motherboards badge bilbat   09-18-2009 at 03:22:27 PM

Are you getting 'phase LEDs' on the MOBO when you try to power up? Do you have a case speaker installed? (I've run into lots of people who expect the 'bootup beeps' to come through their Log1 5.1 speakers on the audio plugs - don' work that way!) Does the CPU fan spin at all?

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dalto   09-18-2009 at 08:35:44 PM

bilbat wrote :

Are you getting 'phase LEDs' on the MOBO when you try to power up? Do you have a case speaker installed? (I've run into lots of people who expect the 'bootup beeps' to come through their Log1 5.1 speakers on the audio plugs - don' work that way!) Does the CPU fan spin at all?


No LED's are lighting up. The manual says that they have to be turned on in the BIOS. I do have a case speaker hooked up. I pulled it out of another case. The CPU fan spins briefly then stops, the rest of the case fans stay on.

evongugg wrote :

Try building outside the case with cpu, beeper and power. Listen for beeps.
Keep adding components and listening for beeps. When you get no beeps there is the problem.


OK, I will try this next.

Maybe I will pull the HSF off too and see if there is anything interesting going under there.

I also think it is strange that it ran for two days without issue.


Message edited by dalto on 09-18-2009 at 08:39:56 PM
Reply to dalto
dalto   09-19-2009 at 12:21:02 AM

OK, so I pulled the MB out and hooked it up with a different power supply and it worked.

Then I pulled the case over and hooked it up that way and it worked.

Then I put the board back in the case and it worked.

Then I hooked the components up one at a time and it worked every time.

Right now it is setup and working but I am still concerned because I haven't really changed anything and it is working.

Is there anything I should be checking?


Message edited by dalto on 09-19-2009 at 12:21:18 AM
Reply to dalto
ricbst   09-19-2009 at 04:46:36 AM

I have a GA-EP45, and i had a similar problem...my conclusion: something was making a short-circuit, because, with all components outside the case it worked. I believe that the boards with 2 oz cooper are more likelly to have this kind of problem, because the extra cooper conducts more eletricity...

What i have done to solve the problem: i have used a non-conductive material to isolate the case from the motherboard( i put only on the mounting holes)...

Sorry my bad english...

Reply to ricbst
Bronze Motherboards badge bilbat   09-20-2009 at 01:53:07 AM

Quote :

I believe that the boards with 2 oz copper are more likely to have this kind of problem, because the extra copper conducts more electricity...



:lol: :lol: :lol: :lol: :lol:


Message edited by bilbat on 09-20-2009 at 01:54:06 AM
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