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Asus dark hero startup issue ?

karlosfandango
Level 9
Hi all
I have a Asus Crosshair VIII DarkHhero ...with an AMD 5900X , 32gb of Gskils ram

Had a few times over last few months since recieving board where the system wont power on.
You press power switch on case and nothing .
You press power button on motherboard ...nothing ....and its lit up white ...all rgb is working ( on when powered off )
If i turn off PSU and back then power it back on ...system boots fine.
It can then be fine for say 4 weeks ...then happen out the blue again.
Was ok with old motherboard....so only things that have changed is MB and CPU.

Tried reflashing bios back to earlier version ...no different.
Had new graphics card since last time so rules that out.
Tried taking ram sticks out ...no difference.

Seems starnge how can run for weeks without issue ( but dont use it every day )

Im using an EVGA supernova 850W PSU.

Not major issue as all have to do is power off PSU and all good again ...but got to be something wrong.
Asus say sounds like something tripping PSU protection ...will have to try unpluging 24 pin and 8 pin cables next time , then plug back in to see if motherboard or psu .

Any help most appreciated.
Karl
256 Views
638 REPLIES 638

mbarry
Level 7
I, for one, have been following this thread. It would be great if Gamers Nexus did a video on this. Asus' response has been abysmal so far. I'm having the same problem - erratic startup problems - but once the computer is on it seems to stay on. Did the build last July.

Hope we can get a satisfactory resolution to this!

STARRAIN@ROG
Can we have an explanation what is going on with this issue? Has engineering team been able to identify the source of the issue?

outofdate wrote:
STARRAIN@ROG
Can we have an explanation what is going on with this issue? Has engineering team been able to identify the source of the issue?


That was a private message:

STARRAIN@ROG wrote:

Hi Xairoo,
Our tech team have found a possible solution for the startup issue, but I'm afraid it can be only done in our repair center.
Could you please send your motherboard to our RMA and share the serial number to me?
I'll inform our local repair center to take care of your motherboard after received it.
Thank you.


https://rog.asus.com/forum/showthread.php?125064-Asus-dark-hero-startup-issue/page44#post856615

Xairoo wrote:
That was a private message:



https://rog.asus.com/forum/showthread.php?125064-Asus-dark-hero-startup-issue/page44#post856615


I have seen your message before. It doesn't explains what is going on, tho.

outofdate wrote:
I have seen your message before. It doesn't explains what is going on, tho.


Also the word "possible" makes it too mystic.
Guess they have to replace a IC. I would like to hear the solution too. Perhaps it can easily fixed with some soldering, if it's not an insane BGA or 0603 resistor which you can inhale... 😉

Asus, tell us more.

Yea I also got asked in Private message to send in my board via RMA for a "possible fix". But he was unable to provide any more information about what the repair involves.

I am guessing he does not want to share the exact details because it would probably reveal the mistake that was made, whether that is putting a component upside down on the board or what ever...

I response was that I don't want to RMA my board, I am using my PC daily for work and fun and I literally can't have my system out of service for weeks because Asus screwed up. Considering that this start up issue is circumvented by simply turning the PC off (using S4+S5 in Bios), it does not have any operational issues.

This is also due to the motherboard being inside a big watercooled PC, it would literally take me hours to remove it, and then hours to re-build the PC from scratch.
A huge amount of effort.

JBROG87 wrote:

I response was that I don't want to RMA my board, I am using my PC daily for work and fun and I literally can't have my system out of service for weeks because Asus screwed up. Considering that this start up issue is circumvented by simply turning the PC off (using S4+S5 in Bios), it does not have any operational issues.

This is also due to the motherboard being inside a big watercooled PC, it would literally take me hours to remove it, and then hours to re-build the PC from scratch.
A huge amount of effort.


Pretty much the same.

BillBittel
Level 12
Has it been confirmed that everyone that has a board with this issue has a board made in Viet Nam?

Part number 90MB1760-M0AAY0 is made in China.

Part number 90MB1760-MVAAY0 is made in Viet Nam.

My understanding is that most, but not all Asus boards purchased in the US are made in Viet Nam to avoid the input tarriffs on products made in China. I bought my Dark Hero from New Egg in January 2021 and it has the Chinese version part number. My board has never had this power up issue.

The Z690 Hero boards with the backwards capacitor (sometimes resulting in catastrophic failures) were all made in Viet Nam. People who work in the circuit board fabrication industry have said that an error like that should have been caught at multiple stages of automatic QC checks that are standard practice. This makes we wonder what is going on with the Asus factory in Viet Nam. In the Z690 Hero case, once the problem started getting press, they started an exchange program, but I have read that some people are being told that they have to pay to return their defective board, and that what's coming back are refurbished boards. If this is a hardware or assembly error, Asus should do advance replacements with BRAND NEW boards like EVGA did with their failing 3090's.

No, my board was produced in China and has the same error, but I already answered you this question a few pages earlier in the topic.
Why are you asking again, are you reading this topic at all or are you throwing in claims just because the problem with the other mainboard only affected the boards from Vietnam?

My mainboard was bought in the EU from a German seller.

In a forum here in Germany, many have this booting problem and their mainboards were all produced in China. I think most Dark Hero boards in the EU come from China.

Mine 90MB1760-M0EAY0 made in China, bought in Russia.