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Ryzen 7 1700/ Gigabyte AB350M No POST

Greetings everyone, Today I'm a broken man... after days of waiting for my mATX board, I rushed home to assemble my new 1700/RX480 rig just to run into the dreaded "No POST".

I have tried just about everything. Symptoms: I start the computer, the CPU fans spins up, the PSU fan spins up and after about 10 seconds it comes to a complete stop.

-- I have 2x8GB Corsair Vengeance LPX (2133/c13) and tried each of them separately in every memory slot.
-- I removed the HDD completely (rule that out)
-- I tried both stock Wraith cooler/Noctua cooler
-- I took out the cpu and placed it back into its socket (no broken pins)
--I cleared the CMOS via removing the battery and putting a jumper on the CMOS pins.
Any ideas would be greatly appreciated but I am slowly but surely coming to the conclusion that my motherboard is DOA.

EDIT: My power supply is the Corsair RM550x
32 answers Last reply Best Answer
More about ryzen 1700 gigabyte ab350m post
  1. What GPU do you have?
  2. I have a RX480 but I removed it and tested with onboard VGA/DVI (to rule out the graphics card).
  3. getochkn said:
    What GPU do you have?


    I have a RX480 but I removed it and tested with onboard VGA/DVI (to rule out the graphics card).
  4. is nothing lighting up on the motherboard itself? If no then I'd agree that the board is probably DOA.

    Only other test I can think of is get a different PSU and try that on the off chance yours is simply acting like its working when in reality its doing nothing.
  5. Onboard video only works with APU CPU's, it's not active on Ryzen CPU's. So there's your first thing, you need the GPU back in or you will never get anything.
  6. The motherboard isn't completely dead, there is a led strip that's on.
  7. getochkn said:
    Onboard video only works with APU CPU's, it's not active on Ryzen CPU's. So there's your first thing, you need the GPU back in or you will never get anything.


    Hmmm, never thought of that. Right, I'll plug the RX480 back. Also, its fans also spin up.

    UPDATE: Plugged RX480 back in. Fans spin up but still no signal. Tried with VGA/DVI/HDMI and tested the monitor on my laptop, does work.
  8. Unfortunately I don't have a motherboard speaker so cannot use that to debug further. Just to make sure, I do not have to have a HDD/SDD attached to get to POST? I removed it just to try and remove possible variables.
  9. correct. POST only requires CPU &RAM and a monitor to output to. Also a keyboard so you can actually interact with it.
  10. I'm officially out of ideas! Lights on mobo go on, cpu/gpu fans spin but no VGA/DVI/HDMI output. Unfortunately I do not have an extra PSU to use as a test. Pretty sure PSU is fine though.
  11. Just an upodate from my side (sorry for bump). Got an ASUS board making its way to me. Will hook everything up and hopefully I'll get to POST. Will keep everyone posted, for those who are looking to buy this specific board and what my experience was with customer support from Gigabyte.
  12. UPDATE: Tested another board and the same problem persists. I don't have another gpu to test, so I don't know if it's the GPU.
  13. I had similar setup except with R9 390 I made it through windows install then the motherboard stopped posting. I ordered another set of RAM that was on its support list since my RGB trident z was not. Still didn't post with other RAM upon checking all connections thoroughly even rewiring the PC again I couldn't get it to post again. I just placed an RMA for the gigabyte Mobo. I am concerned that these first batches of mobos need more bios updates in order to be stable. I noticed on Newegg there were a few DOA reviews for the Asus matx boards :/
  14. Best answer
    I have the same board, same GPU, running an R7 1700 at 3.9ghz at the moment, I know this sounds like a crazy question, but you have plugged the power cable into the back of the GPU ? also do you have the ram in the red slots ? the only difference between my system and yours is I'm running G.skill trident Z 3000mhz 16gb (2x8GB) of ram in mine, although it will only do 2133mhz at the moment which is kinda doing my head in, I get boot / post loops if I try and put it up, also have an MSI B350m Mortar on pre-order, so i'll compare the 2 when it arrives and keep the better one.
  15. I have the same mobo/cpu and had the same problem. Pulled my gpu and put it back in and problem solved. It was the one connection i didn't recheck because it was a pain. Using HDMI to a tv from GPU.
  16. Any updates? I have a similar problem. Were you able to solve the problem?
  17. Hi

    I'm having the same problem; AB350 gaming 3 + GTX550Ti
    But my VGA LED is on. Here's what I tried so far:
    - other PCI slot
    - switch GPU with rx480
    - new PSU
    Nothing worked. I never get a signal on the monitor. Does anyone still have a suggestion?
    Or does anyone know if it's really the motherboard and not the CPU?
  18. After a month down the line, most of the time this issue is caused by ram, it just simply doesn't like whichever kit you've put in it, G.Skill and Crucial seems to work the best so far, Corsair seems to have the biggest problems.

    You can try to boot off 1 stick, or pick up a cheap stick of crucial ddr4 and try that, update the bios and then try your original ram again.
  19. I'm back from the store now with new RAM. I exchanged my Corsair Vengeance 2x16GB with HyperX Fury 2x8GB @2400MHz and it didn't change anything. The mobo still won't pass post. The only thing left now would be new mobo / CPU but their LEDs are not on.

    edit: I went with the HyperX sticks because these were the ones they had on the shelf and Gigabyte lists them as compatible.
  20. PandaCuddles said:
    I'm back from the store now with new RAM. I exchanged my Corsair Vengeance 2x16GB with HyperX Fury 2x8GB @2400MHz and it didn't change anything. The mobo still won't pass post. The only thing left now would be new mobo / CPU but their LEDs are not on.

    edit: I went with the HyperX sticks because these were the ones they had on the shelf and Gigabyte lists them as compatible.


    I am having the same peoblem as you are. I have the R7 1700 + RX 480 (Sapphire Nitro+ 4GB) + Asus Prime B350 Plus + HyperX Fury 2x4GB @2666MHz. I gathered some parts and started testing. First I had different RAM so I RMA'd those thinking they were at fault and picked up the HyperX sticks, but this didn't change a thing. I then RMA'd my mobo + CPU to have them checked by my retailer and they said they were fine. I picked up two old GPUs I had laying around and threw them in and there you go, it posted and booted normally wiht both of them. Those were a Radeon R7 240 and a Nvidia Quadro Fx1700 btw. I'm clompletely lost on the matter but I suspect we might have to wait for a bios update... Anyway I am calling the retailer tomorrow to see what they may know about this issue and I will keep you guys updated!
  21. Back at it again, I haven't done anything today yet but I was just thinking and I think it's or a GPU bios problem or a Motherboard bios problem, I'm going to see if I can update them, first GPU then mobo and see if it changes anything. What's interesting to know is that mine is posting with the RX480, it just isn't outputting any video. I know this because when I get into an OS, my gpu fans slow down as they always do. I'll keep you guys posted!
  22. NaPz___ said:
    Back at it again, I haven't done anything today yet but I was just thinking and I think it's or a GPU bios problem or a Motherboard bios problem, I'm going to see if I can update them, first GPU then mobo and see if it changes anything. What's interesting to know is that mine is posting with the RX480, it just isn't outputting any video. I know this because when I get into an OS, my gpu fans slow down as they always do. I'll keep you guys posted!


    This is strange, however, I had no issues running my Rx480 on a Gigabyte B350 motherboard, ive heard of this problem a few times though.

    1. make sure you GPU is seated in the slot properly, some computer cases, when the GPU is screwed into place can lift the GPU out of the slot very slightly without you even realising it, you may have to build it outside of the case to confirm this.

    2. Are you sure its not your RAM, have you tried some other ram ?

    My GPU fans slow down as soon as its passed that part of the post process, so do all of my case fans, the RyZen memory controller is a very very fussy mem controller about which ram you are using with it, best to work so far is Samsung B-Die moduals
  23. So here I go again, coming with a very strange discovery... My mobo doesnt seem to pass any digital video signals... The R7 240 I used before also has a HDMI port, and I decided to give it a try. I plugged it in and... No video signal, I then proceeded to plug in a vga cable and tadaah! It worked. There seems to be a problem with digital signals, and seeing that most modern GPUs don't have a VGA port anymore, I imagine you can't test if it works...
  24. Hello guys! I called my retailer today, and they said they've never heard of this before. They asked me to send back my mobo, CPU, GPU and RAM so they can recreate my conditions and they're gonna see what they can do. If they come back to me with anything, I will update you! I hope we can solve this together...
  25. I have the exact same problem. it's the Gigabyte AB350 not the M version. i was wondering to what kind of solution did you get?
  26. Tom_139 said:
    I have the exact same problem. it's the Gigabyte AB350 not the M version. i was wondering to what kind of solution did you get?


    As you might have already read, I RMA'd my whole setup. My retailer's Tech Support is still on it and I haven't heard anything yet. I will post on this thread if I get anything back! Good luck and I hope we're close to a solution!
  27. I'm nowhere closer to a solution neither. I exchanged the AB350 with an Asus b350m and it still won't post. Maybe it was my R7 1700 all along. But I haven't had the time to run to the store and return that one yet..
  28. PandaCuddles said:
    I'm nowhere closer to a solution neither. I exchanged the AB350 with an Asus b350m and it still won't post. Maybe it was my R7 1700 all along. But I haven't had the time to run to the store and return that one yet..


    I'll probably have everythin back after the weekend, so as soon asI get a response you'll be updated!
  29. I was nearly in tears thinking my own AB350M-Gaming 3 MOBO was doa as not posting. After 2 days of repeated striping and testing and sandwich boarding it was only after pouring over forums for inspiration that I found this forum mentioning that the VGA output doesn't function. I was convinced that mobile wasn't posting as no beep, but then realised there is no onboard speaker. Plugged in GPU and hooked TV up via HDMI and hey presto... beautiful bios images.

    Feel like I'm king of the world now!

    Now to put it all together again
  30. Seanie280672 said:


    1. make sure you GPU is seated in the slot properly, some computer cases, when the GPU is screwed into place can lift the GPU out of the slot very slightly without you even realising it, you may have to build it outside of the case to confirm this.




    I just experienced a similar issue, and it turned out that the GPU wasn't fully seated. This was with an X370 K5 though -- couldn't get the BIOS to show up, and the VGA LED light was lit up. Screwing the motherboard down all the way, and then trying to fit the GPU, left the front pins slightly exposed -- enough to cause an error. I loosened the screws on the motherboard near the front of the GPU, removed the screws from the GPU, then pulled up on a corner of the motherboard and pushed the GPU down. Powered on, and it booted up without issue. Powered down, screwed the motherboard back down, but not quite as tightly, with the screw immediately next to the GPU a little looser than the two outside ones, and put a single screw in the 'main' GPU screw hole. It powered up again without issue.

    Hopefully this saves someone a headache...
  31. I'm having the same issues but with the ASRock AB350-ITX/AC/M with Ryzen 1600 and EVGA GTX1060 SC.
    Anyone got a solution?
    Please help out
  32. same issue with ASRock AB350 and also tried ASRock A320m DGS board with Ryzen 1500x. I tried both a 1050 and RX 550 graphics card too. The boards both fire up but no video output detected at all from the gpus with either board using ram compatible with their boards (per the ASRock website)....wth.
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