Tag Archives: loop

Asus x99 Deluxe on its way to the manufacturer

Update 12. Dec. 2014:
3 weeks later and still waiting for my mainboard. This really is “a bad situation”. It’s not like we still were back in th 80s or 90s  where shipping takes weeks. I wonder what they are doing there. I’m disappointed. Just imagine they had 1 week to receive the mainboard one week to work on it and another to send the mainboard back to me. What the heck is Asus thinking? This was my last Asus product for sure.


Today it happend. I finally brought the Asus x99 Deluxe in to my local hardware dealer to send the board back to Asus. To be honest, i hoped my dealer will keep my old board and let me chose a new one. I will now summarize some problems i was facing. Things became worse during time.


Mystic behaviour: Power on!

Right in the first month it happended once, that i woke up, went into my living room and my computer was powered on. It should be powered off. Hey i’m a computer junky and strange things happen frequently, especially to my mind. Sometimes i even doubt my memories because of that littl sleep i often get. When i saw my computer powered on, i couldn’t believe it and almost instantly rejected the things going on in my head and said to myself “Oh i forgot to power it off….”. So this was the first time.
It happend again yesterday, but i was absent.


The standby problem

I already talked about it. The system was sometimes hard to wake from standby mode. It was possible to put the system into standby but not to wake it, most times. And now a few days ago it also was hard to put it into standby mode. So things are getting worse.


What you like for dinner?

My BIOS decided to forget about its boot-settings. This happend only once in 2.5 months.


System hang during boot

i had my first system hang few days ago during boot. Windows 7 was about to animate its logo / load its bootscreen and the Windows Symbol was about to load but stopped.


US what? USB?

I was able to wake my system from standby the next day but it seemed that the USB devices got power but are not recognized. Keyboard and mouse dead. Nothing. Asus x99 Deluxe was like “OK, that’s it, i’ma shut down” and  the system shut down. No reboot. Silence.


Sad but necesary

And then, when things like this happen to you frequently and when you read about Asus x99 Deluxe boards, which burn through your CPU and everything else or turn into “fire” (some people reported a little blue blaze/flame when a component on the board died), then you reached that moment to bring the board back to where it came from. I RMA’d it today.

Its a sad story because this board did perform very well in any benchmark tests, especially in those bigger tests performed by other, bigger tech-sites, but i fear that the problems will never disappear or get solved by asus. I fear that they simply replace the board and that i get a new monster. New but fraught with the same problems. Hope is all you can have at this point.


Stock or Overclocked?

Some of the mentioned problems occured with a OC’ed system, some other occured with a stock system. I didn’t try to reproduce every behaviour under different circumstances but i can tell you that i played a lot with the mainboard and its settings. Starting with slight changes and getting as deep and detailed as possible. I did touch almost all voltage settings you can alter in the BIOS. One thing i didn’t do was playing with memory-timings. It will take weeks to go through all settings and find the “evil” ones causing the system to drive you nuts. Every change follows a test, which in most cases is nothing else than using your computer like you do on daily basis. Only performance tests can be performed intantly in short time. However, the story continues as soon as i get my MOBO back.

Asus x99 Deluxe standby mode not working properly

Update Jan. 2016
Try disabling these settings:




Update 06.11.2014: When using Corsair Power Supplies:

Go to http://www.corsair.com/en/rm-series-rm1000-80-plus-gold-certified-power-supply and click “Haswell compatibility” under the FAQ & Support Tab.

Quote “According to Intel’s presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply’s non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU’s protection may prevent the PSU from running and will cause the power supply to “latch off”. This will require the user to cycle the power on their power supply using the power switch on the back of the unit.”

Also check out their forums (http://forum.corsair.com/v3/showthread.php?t=118456). Possible that you need a new PSU but at first you could try to disable C7 state (if possible) in your BIOS settings and see if it helps.



You may know or not that i bought a new system this year. However the Asus x99 Deluxe standby mode seems to confuse some of the components of this system or its the mainboard itself messing around with it.


Infinite loop

When i put my system into standby or suspend mode i can’t really wake it from there. When i try to wake it: the hardware responds, fans are starting to spin, harddrives etc, but the system is not really recovering from the standby mode, instead the system goes to Q-CODE bF and sits there until it starts to reboot automatically. Even a 4-sec-press-hold the power button doesn’t help to cold boot the system. The system sure goes down, but it does keep the system to do the bF loop. It keeps infinite (re)booting.


Q-CODE: [bF]


The first thing i did was CMOS reset but it is NOT necessary!

Instead: turn off your power supply wait a few seconds and turn it on again. Then the system should boot normally.

I already did play with some BIOS settings and there was something strange happening when i enabled ASPM Support in “Advanced->Onboard Device Config->ASPM Support” ….


Asus x99 Deluxe standby mode messed up?
Asus x99 Deluxe standby mode messed up?

When i enabled ASPM Support, i was able to put the system in suspend/standby mode and wake it with either keyboard or power button, right on the first attempt. This made me think i found a solution. It did work 3 times in a row. I then wanted to know if i can reprocude this by undoing the changes to see the bF code again and redoing the changes to see a working standby mode, and failed. Disabling and reenabling ASPM Support didn’t come up with a working suspend/standby mode.


 Asus Technical Support

I already wrote to Asus Technical Support and the first “conclusion” was, that i may have defect hardware with the aim at power supply.


Do you have same or similar problems? Different Q-CODE? Let me know!!


Update: Well sometimes its working and sometimes not. And when i try to record it with a camera, take a guess, its working…. to be continued