Question New Ryzen 5 2600 build not POSTing,

earth159

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May 10, 2014
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Hi guys, first just wanted to say this is a great site and I really appreciate y'all helping people out. I've found a lot of solutions to my problems here without ever needing to post so I wouldn't normally do this but my current issue has me stumped:

I am replacing my old intel i5+motherboard setup with a ryzen 5 2600 setup, so the internal components I'm keeping from the old build are case, PSU, and graphics card, everything else (RAM, mobo, CPU) is new.

Problem is I can't get the system to POST even in the most basic setup (just 1 ram stick+ CPU + hsk in mobo + graphics card since ryzen has no onboard). The mobo lights up and the fans turn on, also the gpu fan is on and it heats up a bit like its running. But no sounds no visuals no bios (not sure the mobo has a built in system speaker though, and the one I took from an old build to test with might be broken).

Components:
Motherboard: ASUS Prime B450 Plus
CPU: Ryzen 5 2600 (just using stock hsk for now)
GPU: Nvidia 1060 GTX
RAM: Ripjaw DDR4 3000 2x8GB (CL15-16-16-35)
PSU: Sentey 725w Pc

PSU and GPU have been in use for a year or so, but I'm pretty sure they work fine since they've worked flawlessly in that older build. The CPU+mobo+ram are untested but brand new, fresh out of the box.

Steps I have tried:
  • Removing everything except the essential components to post
  • Literally everything on the checklist: https://forums.tomshardware.com/threads/perform-these-steps-before-posting-about-post-boot-no-video-problems.1285536/ . EXCEPT for step 17 because the only external system speaker I have is really old so I'm not sure it works any more. So its possible thats why I'm not getting beeps, but still I'm not getting any BIOS or visuals or anything to indicate successful boot.
  • Waiting 10+ minutes for any changes since I read Ryzen can take a while to post the first time
  • Switching around ram slots, trying different ram/combos
  • All connections have been checked, ie. 24 pin is plugged in to mobo, 8 pin is plugged in for CPU power, and 8 pin PCI power cord is plugged in for GPU power. And I have checked they are solidly seated many times. The monitor is plugged into the GPU not the onboard slot.
So besides getting a working speaker so that I can listen for beep codes (ordered one, so itll be here in a few days) are there any obvious issues I should consider (eg. incompatibilities with my build) before considering RMA? Any help is really appreciated, I've been looking forward to building this pc for months now so now that its finally time and I'm running into the issues its got me pretty bummed. Thanks for reading.

edit: oh also not sure I posted this in the right place, if theres a better sub-forum please let me know and I can delete it and repost it there.
 
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Heya,
I had a similar problem with a Ryzen 7 2700 on an Asrock x370 Killer SLI mobo.
Turned out that the BIOS version the mobo was shipped with did not support 2nd gen (Pinnacle Ridge) Ryzen CPU. You might need a BIOS update prior to be able to use the CPU.
I don't know what BIOS your mobo is running out of the box, but it needs to be 0318 or higher for the ASUS Prime B450 Plus.

EDIT: In an ideal case you have a sticker somewhere on the mobo, most likely on the BIOS chip, stating the BIOS version it was shipped with.
 
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Thanks McKeu, appreciate the advice.

I checked out the QVL page and my specific RAM actually isn't listed on there, but the same model number is listed in a different size (ie. I have the F4-3000C15D-16GVKB which is not listed, but the F4-3000C15D-32GVKB RAM is listed). Would this be enough to cause compatibility issues you think (do I need to EXACTLY match the RAM on that QVL page or would my ram being same model but different size still be close enough)?

And then if the problem turns out to be outdated BIOS, do you know how I could address that? I'm not sure how I would update the bios if I can't get it to post. Do you think this is this something that Fry's would be able to help me with since I bought the motherboard there, or would I have to just return the board and look for a different one?
 
Thanks McKeu, appreciate the advice.

I checked out the QVL page and my specific RAM actually isn't listed on there, but the same model number is listed in a different size (ie. I have the F4-3000C15D-16GVKB which is not listed, but the F4-3000C15D-32GVKB RAM is listed). Would this be enough to cause compatibility issues you think (do I need to EXACTLY match the RAM on that QVL page or would my ram being same model but different size still be close enough)?

And then if the problem turns out to be outdated BIOS, do you know how I could address that? I'm not sure how I would update the bios if I can't get it to post. Do you think this is this something that Fry's would be able to help me with since I bought the motherboard there, or would I have to just return the board and look for a different one?

No, the QVL list for RAM only tells you which DIMMs have been successfully tested by the manufacturer of the mobo and at what speeds. It would give you a hint about, whether they already worked for someone else.
And normally, if the vendor is equipped for that, you can go to them and have them flash the bios for you. I dunno if that specific store you got it from has a workshop or no.
FIrst try to verify what BIOS you have, tho. If it is not a sticker on the BIOS chip, then you might have a sticker with a barcode somewhere. Normally the last numbers of that code tell you the shipping bios. If you already have the required BIOS number, then something else is fishy.
 
I just checked your mainboard and it should be able to handle the 2nd gen Ryzen chips out of the box:

AM4 socket for AMD Ryzen™ 2nd Generation / Ryzen™ with Radeon™ VEGA Graphics / Ryzen™ 1st Generation Processors

Maybe a stupid question, but did you connect the CPU power? Should be a small 8 pin power connector, not too far from the CPU socket.
 
OK that makes sense, thanks a ton man.

I'm seeing two barcode stickers on the motherboard, neither is on the bios chip though.
One says : 40B0760BD248 (sticker on the side of the 24pin socket)
Other says: 371670-04175-MBOYNO-A13 0409 (sticker is directly on the mobo surface, in the corner)
Guessing the second one is the one you're referring to, meaning the BIOS would be v 0409?

But yeah the store where I bought the motherboard does offer full tech support, so I think I'll try bringing the build down there and seeing if they can help me, figure out if the board is dead or which components are causing the problems.
 
OK cool, yeah I thought it should work guess its something else then. Hopefully the store will be able to help I guess. Thanks so much for the time you've taken on this.