Asrock X470 Taichi won't post
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11667
Printed Date: 18 Jul 2025 at 9:49am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Asrock X470 Taichi won't post
Posted By: NightAntilli
Subject: Asrock X470 Taichi won't post
Date Posted: 16 Jun 2019 at 11:12pm
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Hey there... I'm having an issue with my Asrock X470 Taichi and I hope someone on here can help me... I've had this motherboard for about 4 months and it has been working fine. Yesterday there was a power outage, and now the motherboard won't post. When I started it after the power outage, I was getting 5 short beeps. After looking that up, it seemed related to the graphics card. It also conformed to the Dr.Debug post code, which was d6. After I looked, the fans of the graphics card were not spinning when power up the PC. I decided to take the graphics card out (R9 Fury) and put it back in, and the same issue remained. I then decided to reset the CMOS by pressing the reset button in the back. I stopped getting any beeps, and now I get post code either 76 or 7b, don't know which it is. I have a link to a video later. I thought my graphics card died at first, so I took an old HD 6850 and stuck it in there, and, the same error occurred. But on this card, the fans do spin at least, but, the errors are the same. I then removed all USB devices, SATA devices, and my sound card. All that remained are my two NVME drives. I then reinstalled my memory and my CPU, reset the CMOS by both pressing the button and removing the battery, and the same issue occurred... Basically it starts posting, and when it reaches 76/7b, it stays there indefinitely. I left it on for an hour. So I have to manually shut it down by holding the power button for a few seconds. I have recorded a video of the error code, with only CPU, RAM and my 2 NVME drives connected; https://www.youtube.com/watch?v=LO87wanhPKU So my questions; What is the error code? 76 or 7b? What does the error code above mean? (CPU? Motherboard? Something else?) How do I fix it? Specs; Asrock X470 Taichi AMD Ryzen 1700 @ Stock 2x16GB G.Skill 3200CL14 @ 3200CL14 Sapphire R9 Fury Nitro+ OC @ stock Samsung 970 EVO 500 GB Adata 8200 Pro 1TB EVGA SuperNOVA G2 Thanks for the help. |
Replies:
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 12:00am
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Power outage + Component not powering up correctly, try another PSU, it may have taken a hit when the power went out. As for the codes, d6 is GPU related but may have occurred because the GPU wasn't getting enough power. 76/7b (whichever it is) is a chipset initialization error, probably because you cleared CMOS and the system isn't getting the correct power to initialize. When you connect another PSU, be sure to clear CMOS again before powering on. It should be pretty straight forward if you have a decent quality PSU (protections in place to save your components). Let us know how it goes  ------------- 
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Posted By: Ray62
Date Posted: 17 Jun 2019 at 12:23am
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Hmm, 76 - PCH DXE Initialization (PCH module specific) 7B - Reserved for future AMI DXE codes D6 - No Console Output Devices are found I suggest to check the power supply without mainboard. If your have no experience and/or tooling for doing that, let somebody do it for you. Anyway, "How to Manually Test a Power Supply With a Multimeter": https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158 Or get another/new power supply for a test, if PC hardware is still functional. ------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 12:54am
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As of now, I have no multimeter nor another power supply available... What I do have is my old Asus M5A99FX Pro R2.0 AM3+ motherboard with an FX8320. I'm going to try to hook it up to that one and start it up to see what happens. If it doesn't start, I guess that would conclude it's indeed the PSU. If that's the case, do you think I can get warranty for it? It does have a 10 year warranty, but I don't know if they cover cases like these. In any case, I'll try and get back to you soon |
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 1:03am
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Even if it works with the FX8320, that is no guarantee it would work with your Ryzen setup, different power requirements, power envelope and VRM. PSUs are a lot more complicated than a run of the mill power adapter, for example, it could be reading at 12-13v (optimal) on a multi meter but still not work with a system because it's ripple (fluctuation) is too high. There are a fair number of things that can go wrong with a PSU, many of which do not result in problems you can detect with a multi meter. Still, it is worth testing it with the older hardware, if it won't allow POST there then you know for certain the PSU is the issue. You can also try a full CMOS clear on the Ryzen setup, pull the CMOS battery, disconnect from power, press power button for 10 seconds then clear CMOS with the jumper and leave it disconnected from power for 1 hour. Good luck -------------
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Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 1:17am
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Just tested with the older system. No issue there. First it gave me a no VGA detected error, so I attached the HD6850, and it works fine and I can enter the BIOS. I don't think this system would pull any less power than my Ryzen system to be honest. |
Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 1:30am
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Ok... So, I decided to make it heavier for the power supply, and put the Fury Nitro on the FX8320 system, and, fans don't spin, no boot... No beeps... So I guess it really is the power supply. |
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 3:23am
Fire off an email to EVGA's RMA support and ask about your situation. I believe it is a 10 year limited warranty but what constitutes limited only they can tell you. Worth a shot. You could just tell them it stopped working  -------------
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Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 5:55am
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Thanks. I will do that, but in the mean time, I think I'll simply buy another PSU, simply because the RMA process generally takes so long... Any recommendations? I'd prefer to spend around $100 but can stretch to $120 if necessary. |
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 6:06am
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Seasonic, something 80+ gold rated or above, single 12v rail of 55A+ (650w+). That gives you a fair number of options at $100 or less, any of which will be more than up to the task for your system. Better a 650w gold than a 750w bronze though, efficiency means better components which means better longevity. -------------
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Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 9:52am
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Hm... I don't feel comfortable going for anything less than 750W. I'll be overclocking my 1700 soon and want the flexibility to upgrade to any GPU I want. Right now I'm considering; Focus Plus Gold 750W @ $110 Focus Plus Gold 850W @ $120 Focus Plus Platinum 750W @ $120 EVGA SuperNOVA G1+ 750W @ $99 EVGA SuperNOVA G1+ 850W @ $104 |
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 3:45pm
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Solid choices. I have not used EVGA PSUs so I can't speak to their quality but, I have not heard anything bad about them. As for flexibility, your R9 Fury is a 275w GPU, the RTX 2080ti is only 250w. As the process size shrinks, so too does TDP and power requirements. In fact, many (most) old generation flagship GPUs require more power than current ones. I, and many others, swear by Seasonic when it comes to PSUs. They are responsible for a lot of the best rated PSUs out there. The fact that Seasonic internals can be found in a lot of high end (other brand) PSUs speaks volumes. EVGA uses Superflower internals for it's G series PSUs if memory serves. Not bad at all but not on the same level as Seasonic IMO. -------------
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Posted By: NightAntilli
Date Posted: 17 Jun 2019 at 7:24pm
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Ok. I'll go for a Seasonic... Which brings me to the next question... Is the additional $10 better spent on the Platinum 750W or the Gold 850W? |
Posted By: Xaltar
Date Posted: 17 Jun 2019 at 11:10pm
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Honestly, I would go with the 850 for the headroom. On the other hand, if your power bill is something you would like to save a few $$ on then go with the platinum, though the difference will be pennies. -------------
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Posted By: NightAntilli
Date Posted: 25 Jun 2019 at 10:50am
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Bad news... Same issues after buying the new PSU. The only difference is that now there's a boot loop. I cleared CMOS,tried with different graphics cards again, tried both RAM modules, a single one in each slot... Error is the same 7b (or 76). I guess all that's left is processor or motherboard. |
Posted By: harbimk
Date Posted: 22 Apr 2020 at 4:25am
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Gents, I have the same problem now. I just opend PC case for cleaning the dust and when I started the PC will not boot with the code 76. Any advise?? |
Posted By: NightAntilli
Date Posted: 23 Apr 2020 at 8:03am
| I ended up RMA-ing the motherboard and got a new one from Asrock. |
Posted By: harbimk
Date Posted: 23 Apr 2020 at 5:13pm
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After hours of troubleshooting I found that PSU and Motherboard were defected. I was really shocked. It was working fine without any issue, I just opened the case for cleaning. I think the main reason is that I didn't discharge the case properly and grounding hit somewhere on the chipest, who knows !!! Now, I ordered new PSU and new motherboard. Also, I decided to upgrade the processor at once. Thanks for reply. |