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MA790GP-UD4H ECS12V Questions

Forum Motherboards & Memory : Gigabyte - MA790GP-UD4H ECS12V Questions

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konan1223   03-25-2009 at 05:09:29 PM

HI, I just got this motherboard and need some advice.

I am trying to use it with an older power supply a Logisys 550W LED Acrylic PSU (in acrylic case), but I am concerned this power supply cannot handle this motherboard!

Firestly, the PSU only has 4-pin ATX power to the CPU, where the board has 8-pin connection. I read in the manual that it would work with 2x2 and 2x4 ATX power, so I tried my PSU to see what happened and it just will not finish POST.

For the record, I am not using any graphics cards or other intense power using devices, just board, cpu, ram, optical, and hdd with just a couple lights and fan.

Can I resolve this issue with an adapter which takes normal 4 pin power and converts it to 8-pin ATX?

Do I just need a new power supply to POST?

Is my board DOA?

I really hate to buy something to SEE if it will work, like if I buy a power supply to find out the board is DOA. anyone know whats up?

thank you.

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bilbat   03-25-2009 at 05:13:06 PM
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What CPU do you have? Whether or not the 8x power connector is needed depends upon the CPU used... A 4x-8x adaptor may work, again, depends on the CPU and the power available on the PSU rail; meantime, I will try to find your PSU's specs...

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konan1223   03-25-2009 at 05:23:47 PM
- 0 +

thank you for the help bilbat, the CPU is an AMD Phenom X3 8650

Here is my power supply: http://www.logisyscomputer.com/vie [...] OWERSUPPLY

Reply to konan1223
konan1223   03-26-2009 at 05:38:49 PM
- 0 +

I have more to add.

I contacted Gigabyte about this and they told me that the 4-pin plug should get the computer going if it is 550W.

I am concerned that even though my PSU is 550W, it might be a weak PSU anyway. I only have it because it is acrylic, it might not be powerful enough for these new boards.

Any opinions?

Reply to konan1223
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