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Thread: ASUS X99 Motherboard Series - Official Support Thread (North American users only) Reply to Thread
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03-20-2019 08:26 AM
ThrashZone Hi,
Maybe try removing the m.2 and install windows on a 2.5" ssd and see if it happens.
03-20-2019 08:03 AM
Jpmboy take the system down to the minimal connected devices (mouse, keyboard, OS drive) and nothing else, do a clrcmos and if it fails again, lastly grab a known-good drive and do a fresh windows install. If that don't fix it, you need to sub a service ticket in your region.
03-20-2019 07:59 AM
TK421
Quote: Originally Posted by Jpmboy View Post
what?
it works when at stock settings ( your post 3-4-19, 4AM), but fails when OC'd?

Doesn't matter if OC or not, will still fail.


I thought that booting with stock fixed that, turned out I was just lucky that one time.





Quote: Originally Posted by ThrashZone View Post
Hi,
Maybe use macrium reflect free and winpe cd/ flash media and it's startup repair option when all unnecessary hdd's are not hooked up.
It does sound like maybe a bad hdd is connected and it has some boot files on it :/


Then use free mini tool and do surface tests on 1 hdd at a time see if any have a lot of bad blocks.

All the boot partition is in the 1x 960 Pro. Installed earlier this year with the latest 1809 LTSC windows.



When windows was installed, that was the only drive connected, so I don't think there's any necessary boot files anywhere else.


When I remove all HDD and just connect the 960 Pro boot drive it will still occasionally fail to boot to windows.
03-20-2019 06:22 AM
ThrashZone Hi,
Maybe use macrium reflect free and winpe cd/ flash media and it's startup repair option when all unnecessary hdd's are not hooked up.
It does sound like maybe a bad hdd is connected and it has some boot files on it :/


Then use free mini tool and do surface tests on 1 hdd at a time see if any have a lot of bad blocks.
03-20-2019 05:59 AM
Jpmboy what?
it works when at stock settings ( your post 3-4-19, 4AM), but fails when OC'd?
03-20-2019 01:09 AM
TK421
Quote: Originally Posted by Jpmboy View Post
just "LOad OPtimized Defaults" in bios, F10 to save and restart
Quote: Originally Posted by ThrashZone View Post
Hi,
I have in the past lost 1 out of 4 sticks running 4x4gbs of corsair dominator 2666C15
Not sure why I just figured it was dual channel memory
3200C14 4x8gb working now not using xmp though just manual dialing it in

Maybe do a memtest86++ on the ram
Or just run it at default 2133 for a while to see if the boot mayham goes away or 1 stick drops off :/

I'm on 3801 bios also for at least the last month or so from 2101



Troubleshooting Help:

What is your parts list? Consider formatting your parts list.
  • 5820K 4.4GHz @1.35v | 4.2GHz @1.21v
  • 1.93v VCCIN | 1.90 VCCIN
  • SA offset +0.25
  • LLC 7
  • Optimized power phase
  • ASUS X99 Deluxe, latest bios as of March 2019.

  • 4x4GB Crucial 2400MHz XMP CL16 1T 1.31v | Stock 2133MHz
  • NH D-15
  • EVGA RTX 2080 Ti XC Ultra
  • EVGA 750G2 PSU

  • Samsung 960 Pro 512GB on ASUS M.2x4 Riser card, with small cooling heatsink
  • Samsung 850 EVO 1TB SATA
  • WD Black 4TB
  • WD Red 10TB x2 (shucked drive)

  • Phanteks Enthoo Luxe

  • Windows 10 Enterprise LSTC v1809. Pure UEFI, no CSM/Legacy OPROM, secure boot disabled.

  • PC was just overhauled this week to replace thermal paste and clean out dust.


Describe your problem. List any error messages and symptoms. Be descriptive.

If I just let the PC boot normally I would get a B1 error (on the motherboard code display) or an MCE "Machine Check Exception" BSOD on boot attempt.

When I boot up the PC, the HDD makes a lot of noise (expected). Sometimes it would take a while before the motherboard passes POST (speaker beep) and during that time the HDD activity light constantly flashes.
Sometimes it would take much less time to pass POST. So it's inconsistent if we can say the HDDs are causing this problem.
Eventually Windows would go into recovery mode, attempt a repair (nothing can be done) and restart the PC.
This has several issues as I will list below.


  • If the machine randomly boots properly it would enter windows recovery mode, then windows would restart the PC meaning that I would get another failed boot. This would result in a bootloop most of the time.
  • Due to the issue above, I have disabled windows recovery and now it allows me to enter the OS normally by pressing enter, which bypasses the restart that windows would normally ask me for.

One time the bios only detect 12GB of memory instead of 16GB, but I haven't seen that issue appear again.


List anything you've done in attempt to diagnose or fix the problem.

  • Resetting all setting in motherboard then try booting.
  • Removing all SATA drive save for the 960 Pro NVME bootdrive then try booting.
  • Using Windows safe mode (without internet).
  • Using ASUS MEMOK button, worked a few times but not consistent
  • SFC scannow, no error found.
  • CHKDSK (iffy since I need to restart to get to this. If it fails to boot when restarting then CHKDSK won't run on the next successful boot).
  • Reseating basically everything (the pc was recently overhauled).
  • Cleaning of memory contacts using alcohol, not dirty.


However there's one solution that works: If I sit in the bios for a couple minutes, then manually select the drive I want to boot into, the computer will 90% of the time boot normally without any problems. Even though this method is inconsistent, it's the only method that would net me the highest success when trying to boot properly.



Post relevant photos of build/parts here.
Replace this text with your answer.
Provide any additional details you wish below.
This is not a new pc, it's pretty old but only encountered the problem recently.













Tried stock setting in bios and almost all the different permutation I can think of, problem is still here and I can't solve it.


PC behave normally when windows loads, no error, no weird stuff. Like 100% nothing ever happened to it.
03-04-2019 02:11 PM
ThrashZone Hi,
I have in the past lost 1 out of 4 sticks running 4x4gbs of corsair dominator 2666C15
Not sure why I just figured it was dual channel memory
3200C14 4x8gb working now not using xmp though just manual dialing it in

Maybe do a memtest86++ on the ram
Or just run it at default 2133 for a while to see if the boot mayham goes away or 1 stick drops off :/

I'm on 3801 bios also for at least the last month or so from 2101
03-03-2019 09:00 PM
TK421
Quote: Originally Posted by Jpmboy View Post
just "LOad OPtimized Defaults" in bios, F10 to save and restart

I'm still on all stock settings after the load optimized default, I think using Q-fan tuning and setting a fan speed curve might be the culprit behind the random failed startups.



Any reason to why the fan might be the problem?
03-03-2019 08:51 PM
TK421
Quote: Originally Posted by Jpmboy View Post
just "LOad OPtimized Defaults" in bios, F10 to save and restart

I made changes one by one to see where the problem is. Will report back when I finish going through them all.
03-03-2019 07:54 PM
TK421
Quote: Originally Posted by Jpmboy View Post
just "LOad OPtimized Defaults" in bios, F10 to save and restart
Okay
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