MSI Tomahawk B350 Boot LED

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poseidon7902

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Just finished building my new PC and seems something is wrong. I've researched this pretty heavily trying to avoid asking an easy question. here's what I know so far.

The iGPU light near the CPU is there to tell me I'm good (No matter how poorly worded the description is in the documentation). This accounts for about 50% of the questions asked in this forum relative to this motherboard.

I have a problem where my machine starts and the EZ LED indicator lights up the boot light. The description reads: Booting Device is not Detected or Fail.

Here's what I've tried so far.
Reseated all connected devices. This includes RAM, Power, CPU/Fan, M.2 Drive, and GPU.
Tried booting with only 1 DIMM in the 2 spot.

At this point, I'm lost on what could be causing this. What else do I need to do or what else could this be?
 
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Seanie280672

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The boot LED will remain on until the motherboard detects some device with a boot partition on it, so you need to enter the bios and select the device you want too boot from, if you've just finished building it, I assume you need to install windows 10 yet.

If what you are saying is you cant get it to display anything on the monitor, then there is an issue between the graphics card and the monitor, ie the cable etc, as the CPU, RAM and VGA are passing the tests, otherwise these LEDs would be on too.

Which graphics card are you using ?
 
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Seanie280672

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OK, so like I said, in that case there is nothing wrong with the CPU, RAM, or GPU, they are all passing the post test (Power On Self Test) otherwise the LEDs would remain on for these parts, which basically means your computer has actually posted, the issue is between the graphics card and the monitor, which cable are you using ? are you sure you've plugged the cable into the graphics card outputs and not the motherboard outputs ? try a different cable if possible.

Here's one I solved earlier having the same problem as you, it turned out to be the cable: http://www.tomshardware.co.uk/answers/id-3455931/msi-b350-post-black-screen.html

Also, just so you know, that little red light up by the CPU fan header only comes on when your board successfully posts.

 

poseidon7902

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I'm used to hearing a Post beep so I figured, a red light + no beep means something isn't right. I am using DVI and HDMI for my dual monitors (They are 5 years old and getting new ones that are worth a damn wasn't in the approved budget). I wasn't as concerned with the lack of video because of the no beep light thing. Let me go troubleshoot the video portion.
 

Seanie280672

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Just plug into one monitor for now with the HDMI cable / output on the graphics card, if that doesnt work, try the other one via the DVI cable only.

These boards only beep if there is a problem, mine only beeps if ive been messing with my ram lol, 3 times.

Just so you know, the little red light up by the CPU fan header only comes on when the board successfully posts.
 

poseidon7902

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Ok. I had already tore the whole thing apart when I wrote my original post so I went back and now everything is working. Windows is installing at the moment. Thanks for the help!
 

Seanie280672

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You're welcome, enjoy the system, the Tomahawk is a great board.
 
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