[Solved] New build no post no display. Not built a PC for 20 years, need help!

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J

johnvdz

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Sep 26, 2017
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Hi, I could really do with some help. It's been a while since I tried doing this and l'm out of my depth!

Fans spin, lights come on, nothing on screen. No speaker so no beeps. This is the build:

Mobo: ASRock Fatal1ty AB350 Gaming K4 AMD Ryzen ATX DDR4
CPU: AMD Ryzen 5 1600X. Part # YD160XBCAEWOF
SSD: Samsung NVMe 960 EVO M.2 250GB. Model # MZ-V6E250
GFX: MSI Radeon RX Vega 56 8GB. Model Code: MZ-V6E250BW
RAM: Corsair Vengeance LPX DDR4 2×8GB 3000MHz. Part # CMK16GX4M2B3000C15B
PSU: EVGA - SuperNOVA G2 550W 80+ Gold Certified Fully-Modular ATX
HDD: Not attached one yet.

Mobo manufacturer says it supports the CPU model but in their list it has a different part number. If it isn't supported by the mobo or my BIOS I don't know what to do about that. Can I update BIOS somehow? Or should I buy a new CPU and if I do can I re-use the cooler?

CPU is the right orientation, the cooler attached well. I've checked all connections, booted without RAM and GFX card. Still no display. I've done most of the tests in the guide, barring the beep code steps as I wouldn't know what the beeps mean. http://www.tomshardware.co.uk/faq/id-1893016/post-system-boot-video-output-troubleshooting-checklist.html

Any suggestions would be most appreciated.

 
Solution
J
The problem was that the BIOS my mobo shipped with does not support my CPU. Although the mobo supports Ryzen 5s and 7s, I was told it's a 50:50 chance that its shipped BIOS won't support any given model of 5s (although it's always good for 7s).

I paid a shop to remove the CPU cooler and CPU, put in a Ryzen 7, flash the BIOS, and put the 5 and cooler back. Everything was fine after that. Not expensive to do.

Footnote: The BIOS doesn't run my RAM above 2134Hz. I read I can manually OC the voltage and get it up to up to 2667Hz.

Thanks for all your suggestions, it got me to the point that I could work out what the fix was.
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Dunlop0078

Dunlop0078

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Feb 13, 2014
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That CPU is supported by that motherboard and any BIOS it would have. You need at least one stick of ram and a graphics card installed with the display cable plugged into the GPU for it to boot. The 1600x has no built in GPU, that system will not function without a dedicated GPU.

My first thought is you are plugging your display cable intro the back of the motherboard and not the GPU, it has to be plugged into the GPU. If you are already then I would try to boot the system out of the case, put the motherboard on it's box or something.

 
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J

johnvdz

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Sep 26, 2017
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Thanks Dunlop for your suggestions. I did work out to put the DP cable into the graphics card (after an hour) but unfortunately still the same problem.

If it's not a CPU-mobo compatibility problem, I'll try removing the SSD and put in an HDD tomorrow. Am loathe to breadboard the mobo as the cooler's a monster (be quiet! Shadow Rock 2) and I'm concerned all the fiddling might unhouse it or the CPU. But I'll take your suggestion and let you know how it goes. Thanks again.
 
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adiec

adiec

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Dec 4, 2013
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i'd suggest taking some photos of the inside of your build .. perhaps there is a cable/component not inserted properly or at all .

use something like https://imgur.com/ to upload the photos and then share the links to them here .
 
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J

johnvdz

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Sep 26, 2017
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Yep a 3 year old NVidea GTX 660. I'll try swapping that first as is easy. Too late to do it tonight (UK 1:30am) and I've had a consolation big glass of wine @_@
 
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J

johnvdz

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Sep 26, 2017
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I followed your suggestions, thanks for those. Here's an update:

I have narrowed it down to an issue with the mobo, CPU, RAM, or combination of these. I tried various permutations of swapping out the GFX, PSU, and SDD for an HDD. Can't do that with RAM as I have no spares which fit. None of this resolved the issue, but that at least has helped exclude a lot of causes.

I think the next steps are a diagnostic of what parts are drawing current, and removing the mobo from the case to 'breadboard' it, as there's a chance something is shorting. I'm out of my depth with this, so I have taken it to aria.co.uk for diagnostics. I'm very lucky to live near their HQ.

When I hear from them I'll update. Thanks for your help in getting me this far!
 
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J

johnvdz

Prominent
Sep 26, 2017
7
0
520
The problem was that the BIOS my mobo shipped with does not support my CPU. Although the mobo supports Ryzen 5s and 7s, I was told it's a 50:50 chance that its shipped BIOS won't support any given model of 5s (although it's always good for 7s).

I paid a shop to remove the CPU cooler and CPU, put in a Ryzen 7, flash the BIOS, and put the 5 and cooler back. Everything was fine after that. Not expensive to do.

Footnote: The BIOS doesn't run my RAM above 2134Hz. I read I can manually OC the voltage and get it up to up to 2667Hz.

Thanks for all your suggestions, it got me to the point that I could work out what the fix was.
 
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