System Wont Post/Boot Debug LED

Apr 8, 2018
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I recently built a brand new system, all parts new except the Storage and the Graphics Card. After I assembled all parts in the case properly I tried to boot the system to no avail. The CPU and RAM debug leds turn on and off as expected and then the VGA Debug LED will turn on and stay lit for a few seconds, then it will switch to the BOOT Debug LED that will not switch off. All fans spin up as expected and seem to slow down a few RPM after a couple of seconds. All of the case fans spin as well as the PSU fan, Graphics Card Fan, and Radiator fan.

My system configuration is as follows:

MOBO: MSI B350 Gaming Plus
CPU: Ryzen 5 1600X
RAM: 2 8Gb sticks of Corsair Vengeance 3000Mghz
Cooler: Corsair H60 AIO
Graphics Card: AMD Radeon Rx 560 (AMD Radeon RX 560 2GB DirectX 12 128-Bit GDDR5 PCI Express 3.0 - RX560DE PA8057)
Case: Corsair 270R
PSU: Corsair CX650
Storage:1TB Seagate Barracuda HDD + 1TB WD Blue HDD

I have made sure all connections are secure. Nothing is shorting anything else out as I have breadboarded the system. I removed then reinstalled the CPU and did not notice any bent pins or anything of that nature. I have tried reconfiguring all the RAM in every possible DIMM slot and that has not yielded any results.

All I get when trying to boot is a gray screen and the Boot Debug LED on my MOBO.

The interesting thing is that the Boot Debug LED goes away and is replaced by the VGA Debug LED when the graphics card is removed. I think this means that it isnt the motherboard. I have also tried resetting the CMOS and that hasn't helped at all. Everytime I try to boot there is the same Boot debug LED and the Same Gray screen. If anyone could help me troubleshoot this I would be extremely grateful.

 
Solution
This looks like system is running fine, just gives no display. Basic troubleshooting here is aimed at GPU. Are you sure that:
- monitor is working and set to correct input source
- video cable works and is connected to GPU and not motherboard
- you are not using passive DVI-VGA adapter
Next step is to remove all drives and try to boot. If you still get failure at this point, then your problem has nothing to do with drives.
This looks like system is running fine, just gives no display. Basic troubleshooting here is aimed at GPU. Are you sure that:
- monitor is working and set to correct input source
- video cable works and is connected to GPU and not motherboard
- you are not using passive DVI-VGA adapter
Next step is to remove all drives and try to boot. If you still get failure at this point, then your problem has nothing to do with drives.
 
Solution
Apr 8, 2018
3
0
10


Thank you so much I think this is reaffirming my initial thought about the problem. I have tried to boot without any drives connected and have gotten the same result. All connections are properly made using HDMI through the GPU and still nothing. I just checked the monitor and the display works just fine. So at this point I will just be double checking by using a friends GPU just to test for an initial post. If I can definitively confirm that it is indeed the GPU and not a MOBO/PSU problem I'll be ordering a 1080 or something similar in the near future. Thanks so much for your help!
 

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