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Questions about GIGABYTE products => Motherboards with Intel processors => Topic started by: jh on January 03, 2011, 08:45:56 pm

Title: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: jh on January 03, 2011, 08:45:56 pm

Hello,

I have a problem with the GA-P55A-UD3 (new). When I start the machine is turned on Led Phase 1 (green) and off, and the fan tries to start, but never starts.

The CPU is Intel Core i5-660 LGA 1156
Video Card - Gigabyte 8400 GS 512MB  GDDR2
Memory - Kingston KVR1333D3N9/2G  X  2  =  4G
Power Supply UNYKA ATX12V P4 -- 500W

Why might that be? Appreciate your help because I do not know what to do.

Greetings

Note:  my tower has no speaker, i do not know if that is required

Image >>   http://img718.imageshack.us/img718/1734/p1030049o.jpg

Title: Re: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: Dark Mantis on January 03, 2011, 09:29:27 pm

Hi and welcome to the Gigabyte Forum.

Firstly I would suggest that the problem more than likely lies with your PSU. It is a very cheap and nasty one  and even though your system isn't what would be considered high end power consumption wise I would suspect that this PSU isn't coping.

The manufacturer recommends a 550W power supply for this motherboard and yours doesn't even meet that and probably is eveb less in reality.

I would advise you to get a buzzer/speaker for troubleshooting purposes if nothing else.

Title: Re: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: Greed4Speed on January 03, 2011, 10:16:28 pm

Yes it would seem like the psu is at fault.  To be sure try again but with the graphics card not inserted, only one stick of ram, no hard drives, no fans connected (except the cpu fan), then see if you get all four phase lights to appear, then after that the cpu fan should continue spinning with all the phase lights still on.  If that happens then it would be a good indicator that you are underpowered.

I would never run a system with a cheap and nasty psu.  Most cheap psu's stated wattage is what it peaks at and not the lowest wattage like good quality one's, they also use much larger better quality capacitors.  My brother had such a poor quality psu in his system, when it died it took out all the other components with it :'(

Title: Re: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: jh on January 03, 2011, 11:04:54 pm

Thanks for the answers

I change the power supply for a 550W or 600W? What would be the ideal?

Title: Re: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: Greed4Speed on January 03, 2011, 11:30:05 pm

Quote from: jh on January 03, 2011, 11:04:54 pm

What would be the ideal?

Probably the 600w, you could go higher if you plan to upgrade in the near future.

Title: Re: GA-P55A-UD3 and i5-660 Intel Core LGA1156
Post by: Dark Mantis on January 04, 2011, 09:43:37 am

Yes I wouldn't advise anyone to purchase lower than a 600W  with the components that are used nowadays. More if you plan to use a dedicated newer graphics card.