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ASUS Sabertooth 990FX R2.0 BOOT_LED red light, NO VIDEO

Last response: in Motherboards
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September 23, 2014 5:26:17 AM

I has just bought this motherboard and did a number of troubleshooting steps before I wrote this. They are as follows:

-All power cords connected properly, ATX too
-Took the board out to bench test to make sure it was not a grounding issue
-Reinstalled the CPU and heat sink
-Cleared then CMOS... twice
-Checked the MEM OK, reset that as well
-Made sure Memory and Video card were in sung
-Made sure memory was in farthest slot, recommended slot, or any slot for that matter

Equipment Specs:

-Asus Sabertooth 990FX R2.0 MB
-Antec 650 PS
-AMD FX-8320 CPU
-EVGA GEFORCE GTX 750ti SC
-Patriot 1600 4GB memory (not my fav, going with what I could get)
-Cooler Master HAF XB EVO (case)
-1TB WD blue

This may be fruitless, but before I take the board back I would like to see if there may be other suggestions. Like I said, I did remove it from the case to make sure it was not a grounding issue, Now, my PSU does have a four prong ATX cord, actually it has two. The slot on the motherboard is for eight prong. I am not sure if that makes a difference, but from what I read it should not. Any suggestion, comments, or concerns are welcome!

More about : asus sabertooth 990fx boot led red light video

September 23, 2014 5:30:22 AM

One last comment, I did read some information about flashing the BIOS. However, since I am unable to even see video output how is that possible? Intuitively I am assuming it is not. And just to be clear the light that is staying on is the BOOT_DEVICE LED and it is a solid red, not flickering.
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September 23, 2014 8:48:28 AM

Jeez...., it is always he things that are the most obvious.... Thank you.
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October 4, 2014 12:20:03 PM

So, I finally got the correct memory for my motherboard. The same issue is happening. There is not a post. The 'BOOT_DEVICE_LED' stays red. Once again, I disconnected every cable, bench tested, and preformed all the previous troubleshooting steps I mentioned in the initial post. The only assumption at this point is I purchased a bad motherboard (DOA) from Asus. Any other suggestions would be welcomed.
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October 4, 2014 12:22:02 PM

Nhutchi said:
So, I finally got the correct memory for my motherboard. The same issue is happening. There is not a post. The 'BOOT_DEVICE_LED' stays red. Once again, I disconnected every cable, bench tested, and preformed all the previous troubleshooting steps I mentioned in the initial post. The only assumption at this point is I purchased a bad motherboard (DOA) from Asus. Any other suggestions would be welcomed.


well the motherboard is DOA as you said..time to have it RMA.
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October 14, 2014 3:24:03 PM

I have pretty much the same issue thought the board was bad sent it in RMA got the new one today installed but the red CPU is on in the new one also have cked cables and wiring CPU was new when I installed it in the first board, could it be a bad CPU? Thanks
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