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post #1 of 14 (permalink) Old 06-16-2019, 08:21 AM - Thread Starter
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PC won't post after power outage

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 and graphics 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 should also mention that posting without RAM gives the proper error code.

I have recorded a video of the error code, with only CPU, RAM and my 2 NVME drives connected;

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.
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post #2 of 14 (permalink) Old 06-16-2019, 09:07 AM
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I don't think 7B is a valid post code, but 76 is a chipset initialization error code.

You had a power usage so the most likely death was the PSU, and past that I'd look into the motherboard. Can't really test either without replacing them.

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post #3 of 14 (permalink) Old 06-16-2019, 10:42 AM - Thread Starter
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Quote: Originally Posted by The Pook View Post
I don't think 7B is a valid post code, but 76 is a chipset initialization error code.

You had a power usage so the most likely death was the PSU, and past that I'd look into the motherboard. Can't really test either without replacing them.
I decided to test the power supply by hooking it up to my old system which I didn't sell yet. It's an AM3+ system with an FX 8320 and 16GB of RAM. I hooked it up with an older graphics card (HD6850), and all seemed fine...

I decided to stress the PSU more by putting my main GPU, the R9 Fury Nitro on the old system, and similar issues began popping up. GPU fans didn't spin, no beep codes etc. It really looks like it's the PSU...

So... Would this be covered under warranty? Because the PSU has a 10 year warranty.
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post #4 of 14 (permalink) Old 06-16-2019, 10:48 AM
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Should be able to RMA then as long as you still have proof of purchase.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
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Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
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Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
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post #5 of 14 (permalink) Old 06-16-2019, 11:31 AM
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EVGA might not be around for very long as they have been doing very badly the last few years and they just had to lay off some staff so they are not doing too well
If you want to RMA i suggest you do it sooner rather than later

Edit: by the way if EVGA offer you a GQ a PQ a G3 or anything else other than a G2/P2/T2 don't accept it as they are all worse than the G2 and you will have a downgraded PSU

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post #6 of 14 (permalink) Old 06-16-2019, 12:24 PM
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Quote: Originally Posted by shilka View Post
EVGA might not be around for very long as they have been doing very badly the last few years and they just had to lay off some staff so they are not doing too well
If you want to RMA i suggest you do it sooner rather than later

Edit: by the way if EVGA offer you a GQ a PQ a G3 or anything else other than a G2/P2/T2 don't accept it as they are all worse than the G2 and you will have a downgraded PSU
EVGA is really doing that bad? I sure hope they don't fold. I want them to be around to honor the entire warranty of my G2.
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post #7 of 14 (permalink) Old 06-16-2019, 02:53 PM - Thread Starter
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Quote: Originally Posted by shilka View Post
EVGA might not be around for very long as they have been doing very badly the last few years and they just had to lay off some staff so they are not doing too well
If you want to RMA i suggest you do it sooner rather than later

Edit: by the way if EVGA offer you a GQ a PQ a G3 or anything else other than a G2/P2/T2 don't accept it as they are all worse than the G2 and you will have a downgraded PSU
Thanks for the advice. I'll do that, but in the meantime, I'll simply buy another PSU for now, simply because I need the PC quicker than they'd be able to help me most likely. If they do cover it, I'll get a backup unit then.

So, what would you guys recommend? I'm not willing to spend more than $120.
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post #8 of 14 (permalink) Old 06-16-2019, 02:58 PM
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Seasonic Focus/Focus Plus lineup is pretty solid but the prices have went up by ~50% since I bought mine. Got a 750W for $80 at the end of 2017, now the same unit is $115. Should still fit in your budget though.

https://pcpartpicker.com/products/po...t=price&page=1

Focus lineup is semi-modular, Focus Plus is fully modular. Otherwise they're identical.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
2 OP pls nerf
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HP EX950 NVMe 2TB
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Samsung 860 Evo 1TB
Hard Drive
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Hard Drive
Western Digital EZRZ 3TB
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Seasonic Focus Plus Gold 750w
Cooling
Corsair H115i Pro
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Fractal Design Meshify S2
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post #9 of 14 (permalink) Old 06-16-2019, 04:31 PM - Thread Starter
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Quote: Originally Posted by The Pook View Post
Seasonic Focus/Focus Plus lineup is pretty solid but the prices have went up by ~50% since I bought mine. Got a 750W for $80 at the end of 2017, now the same unit is $115. Should still fit in your budget though.

https://pcpartpicker.com/products/po...t=price&page=1

Focus lineup is semi-modular, Focus Plus is fully modular. Otherwise they're identical.
I've read about issues with Vega 56 cards with those PSUs. Is that resolved? I was thinking of getting a 2nd hand Vega 56.
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post #10 of 14 (permalink) Old 06-16-2019, 04:55 PM
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only on 2017 and earlier models, mine wasn't affected and I bought near the end of 2017. The fix is just replacement 6/8 pin cables with more shielding.

if you buy a unit and need the cable, they ship them out for free.

Intel i9 9900K Coffee Lake @ X8 5309mhz (+47.5%)
AMD FX-8320 Vishera @ X4 5022mhz (+43.5%)
Intel i5 4690K Haswell @ X4 5013mhz (+43.2%)
AMD X4 960T Zosma @ X6 4870mhz (+62.3%)
Intel i7 6700 Skylake @ X4 4709mhz (+38.5%)
Intel i5 6400 Skylake @ X4 4588mhz (+69.9%)
2 OP pls nerf
(24 items)
NUC U
(10 items)
CPU
i9 9900K
Motherboard
AsRock Z390 Taichi
GPU
MSI GTX 1080 Ti
RAM
G.Skill DDR4 4133 32GB
Hard Drive
Mushkin Pilot NVMe 1TB
Hard Drive
HP EX950 NVMe 2TB
Hard Drive
Samsung 860 Evo 1TB
Hard Drive
Sandisk Ultra II 480GB SSD
Hard Drive
Toshiba X300 5TB
Hard Drive
Western Digital EZRZ 3TB
Power Supply
Seasonic Focus Plus Gold 750w
Cooling
Corsair H115i Pro
Case
Fractal Design Meshify S2
Operating System
Windows 10 Education x64
Monitor
Acer XF270HU
Monitor
Dell E2311H
Keyboard
CoolerMaster MasterKeys Pro S
Mouse
Logitech G502
Audio
SMSL SA50 + FiiO E10K
Audio
Micca RB42
Audio
Polk Audio PSW111
Audio
Philips Fidelio X2
Audio
Philips SHP9500S
Audio
Audio Technica ATH-M50X
CPU
i3 8109U
Motherboard
Intel NUC8i3BEH
GPU
Iris Plus 655
RAM
Kingston 8GB DDR4 2400
Hard Drive
Dierka K1 120GB
Hard Drive
ADATA SU800 128GB M.2
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Windows 10 Professional
Operating System
MX Linux
Keyboard
Rii RKM709 Wireless
Mouse
Logitech M510
CPU
i7 860
Motherboard
Advantech AIMB 280 ITX
GPU
EVGA GTX 950 2GB
RAM
Kingston 2GB DDR3 1333
Hard Drive
Seagate Momentus 2.5" 500GB
Hard Drive
Western Digital Blue 2.5" 320GB
Power Supply
Silverstone SFX-L Gold 500w
Cooling
Arctic Alpine 11 GT 2
Case
Silverstone Milo Z ML07B
Operating System
Windows XP x86 SP3
Keyboard
Velocifire TKL01 Outemu Browns
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