Q LED codes Asus crosshair VI

Elwood90 · Jun 30, 2017

Hello,

I built my first PC this week:
Asus crosshair VI
1080ti Asus Strix
16gb Corsair vengeance RGB 3000MHz
Kraken x62 AIO
Corsair AX850

Powered it up for the first time today, ive never installed the OS or drivers myself so i followed a youtube video just to make sure (tom's hardware guide). I carried out all the standard procedures, installed windows, MOBO & GPU drivers.
Now on three occasions, all whilst playing a game, the PC has crashed displaying a Q LED code of 08 with a steady yellow light under the Q LED for the DRAM, also the MOBO has constantly displayed code 24 whilst powered up (not even listed in the MOBO user guide)

Worthy to note during my setup i followed the advice from the youtube video to manually set the RAM from 2133MHz to basically what it says on the box. (3000MHz)
I did go back into the BIOS after my first crash, put it down to 2666MHz, i felt like this made a difference as i didnt encounter the issue again for some time but it did happen eventually i have now reverted the whole BIOS back to its defaults (2133MHz for the RAM) and have thus far not encountered the issue again.

Im a total novice when it comes to PC diagnostics please bear that in mind any advice on what may be at fault here is much appreciated.

Update: Ive updated the BIOS via a flashdrive to the latest version as well as being reverted back to the default settings in BIOS, thus far no issues, four straight games of Overwatch without fail.

MeanMachine41 · Jun 30, 2017

Hi Elwood90

Qcode 08 (actually 8) is related to an instability and probably associated with your RAM.
Qcode 24 is nothing to worry about as this is the readout when you successfully Boot to Windows.

You will have a better chance of running your RAM at its rated speed or close to it by updating to the latest Bios 1201 with Update AGESA code to 1.0.0.4a. and available here: https://www.asus.com/au/Motherboards/ROG-CROSSHAIR-VI-HERO/HelpDesk_Download/

The new Bios update AGESA 1.0.0.6 officially adds 26 new parameters to RAM Timings and due for release any day now.
There are numerous Beta Bios versions available with varying success depending on the RAM and CPU you're using.

I also have a kit of 3000MHz RAM and have managed to get my SPD to 2933MHz however, I am using Bios 1002 being the most stable with my current OC. I have the 1800X CPU and it also varies depending on the CPU you have.

The AM4 platform is still evolving in terms of RAM choice and will require Manual tuning in Bios for DRAM Timing control and voltage.

I can provide some advice re: Timings and voltage however no guarantee they will work if your RAM kit is not listed on the MB QVL.

Any difficulties in understanding the above, I will try to explain.

Elwood90 · Jul 1, 2017

Hi MeanMachine41,

Thanks for the reply, sorry i forgot to post my CPU, i have the 1800x also.

Well ever since i updated to BIOS 1201 I've had no issues what so ever so that's definitely helped.

To be honest i didn't know there was a MOBO QVL, how definitive of a list is it? Is it just a selection that ASUS have tested with the MOBO, seeming there are so many RAM choices out there they wont test everything?

I would like to learn to tweak settings for optimal performance, I had intended that to be part of the whole learning experience of building a PC myself for the first time but at the moment I'm content that its running smooth at stock settings.

Thanks again

MeanMachine41 · Jul 1, 2017

Your Welcome Elwood and for the time being, if your stable then wait for the next official AGESA (v1.0.0.6) Bios update.
The MB QVL is not complete and lists only those RAM kits that ASUS have tested. Most successful are those with Samsung B-die chips atm.
The 1800X can be Overclocked to around 4.1-4.2 GHz depending on your cooling system and significant performance gains can be got from OC RAM.

There is also a wealth of information on RAM timings for various OC RAM at ROG Forum under the CROSSHAIR VI MOTHERBOARDS (X370) section. You can also compare your findings with benchtests I have done here: https://rog.asus.com/forum/showthread.php?92489-New-Ryzen-7-1800X-build-impressions.

Good Luck and enjoy.

torstenwedel · Dec 13, 2017

ROG CROSSHAIR VI HERO (WI-FI AC)
BIOS 1702
Corsair Vengeance LPX 3200
Ryzen 7/1700
Overclocked using the OS Tool to 4.050 Stable ( could have gone higher but decided to go down a bit from 4.1)

I am having a very stable system, no errors, no crashes so far (crossing fingers and knocking on wood). System has a Arctic Freezer 240 (push pull) on it and is under full stress test not passing the 38 C degrees.

However, I have noticed on the Q-Code the same mysterious 24. I have contacted ASUS and nothing, Checked a few forums and seen all kind of funny responses such as putting tap over the Q-Code screen.

Now here is my question, is this 24 concerning, should I take actions? Or is it just because the memory initially before upgrading from stock BIOS to 1702 the memory was 2166, once I upgraded the BIOS I could set it to the speed it was supposed to run.

Now in BIOS the memory is good, no issues while using the AI overclocking tool neither, no crashes, I can stress test no crashes play high intensive AAA games, nothing bad happens at all.

The System runs very cool and smooth, just that Q-Code showing a constant 24 which not only breaks the color scheme of the PC but is concerning me...

Could anybody clear my mind and help me to see if I should be concerned or just leave it alone?

Thanks in advance

MeanMachine41 · Dec 13, 2017

Qcode 24 is nothing to worry about and quite well explained by Gupsterg in his post at Overclock.net.

Although undocumented many have queried QCode 24 and if you're unable to find his post, I copied it and Quote:

As W8/10 has Fast Startup and does a hibernation file, when a successful post of Fast Startup occurs you will see Q-Code 40.

You will also see in Task Manager Uptime is accumulative value of uptime prior to shutdown and of this instance of post to OS. When a successful post with Fast Startup does not happen you will see Q-Code 24, as fresh kernel has loaded and old wasn't resumed.

Google it, on W8/10 you only get a fresh kernel on a restart, otherwise it will be a resumed kernel if Fast Startup is enabled.

Q-Code: 24 Fresh kernel / successful post to OS

Q-Code: 30 Resume from sleep

Q-Code: 40 Fast Startup post successful

When a user has Fast Startup enabled and you do not see Q-Code 40 but 24 you will have errors in event log > System.

When a user has Fast Startup disabled and you see Q-Code 24 you will have no errors in event log > System.

Your system is having an issue with Fast Startup when you had Q-Code: 40, just like finalheaven and another user yesterday.

I have no issues with my system on successful Fast Startup case, Q-Code: 40. So my opinion is HW difference between our rigs are cause of this and firmware of motherboard not being right.

On early UEFI I could not use sleep on W7 but only W10, now I can use it both. On early UEFI some couldn't even use sleep on W10, now they can. So hopefully as firmware progress Fast Startup will become a non issue.
End Quote.

sharkaki7 · Feb 13, 2018

hello i have the same problem code 8 on asus rog vi !!my pc dont boot and i have black screen..i change ram .cmos clear.battery remove ,and still nothing pls help

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