GA 990FX-UD3 Not Working

[raav]

Hi,

I recently purchased a 990FX-UD3 mobo, and it does not work with three of the PSU's I tried. I upgraded my PSU to OCZ 700W, and nothing seems to power on, while my old mobo from Gigabyte lights up. It is not in a case while I do have one. I got the mobo replaced because I thought the first 990FXA was defective, but the newer mobo does not respond to anything either.

Specs:
990FXA-UD3
AMD3+ 8-core 8350 (stock heatsink for the time being)
Corsair Vengeance 8GB
Barracuda 2TB
GTX 660
Kingston 120GB SSD


I hope someone can assist me since I need this PC to start running ASAP.

[autotech]

just a few questions.  Model and speed of ram, What bios version do you have?  Operating system,  Have you tried just basics like 1 stick of ram and 1 hard drive.  Does the bios screen even come up? If it shipped out with bios  F1 it need bios F9 to even support that chip.  Post back and i am sure someone wil help.

[raav]

It's 1x8GB Corsair Vengeance DDR3 1600 MHz.

I have been putting the new rig together and all of these parts are brand new out of the box. There is no beep or reaction from any fans when I turn on the power supply so I don't know what the problem is. I haven't even gotten anything to turn on so I can't get into BIOS.

[AgentFXA]

Sometimes it helps to flush the bios

Is this an UEFI board (rev 3) or a legacy bios?
If legacy don't forget to up the ram voltage for 1600 or nothing will happen
IF UEFI use the XMP profile and it should boot straight away

[raav]

The problem is that my motherboard won't work at all so I don't know how to change the bios if it's not working and letting me get into bios.

Is it possible for the motherboard to not work because the RAM isn't compatible to AM3+?

[Vezina]

RMA the motherboard.

Anyway remake the system on a wooden/cardboard surface before sending it.

[raav]

Vezina - I did remake the system on a cardboard surface with both of the motherboards -- still no reaction.

I think I'll get a different motherboard instead and hope for the best.

[CountMike]

Tried without the GPU ?

[geekyadz]

RMA saying that you want the latest BIOS on the mobo. Seems they are being shipped with an out of date BIOS and not detecting the CPU

[MisterEd]

You still did not say which revision board you have. The revision number should be located at the bottom left corner of the board.
The following is for a Rev. 1.0 board.


The GA-990FXA-UD3 has 3 revisions: 1.0, 1.1 & 3.0
For the AMD FX-8350:
Rev. 1.0 & 1.1 boards, update to BIOS F9 needed
Rev 3.0 board, BIOS FA (1st BIOS, no updated needed)

Make sure to double check all power connections.
Do you have both 24-pin ATX and 8-pin ATX-12V connectors connected?

Do you have the video card power connector connected?
For example the GeForce GTX 660 requires 1 PCIe 6-pin power connector while the
GeForce GTX 660ti requires 2 PCIe 6-pin power connectors.

Make sure the case front panel is wired to the motherboard Front Panel Header correctly.

All you need is the CPU (and cooler), RAM and video card for a start.
Wired correctly the case power button should cause system to start right up.

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I have a GA-990FXA-UD3 rev. 1.0 board updated with the F9 BIOS.
It has 2x4GB RipjawsX DDR3 1600 MHz. No changes were needed for the RAM voltage.
It booted right up with the AMD FX-8350.