Asus X99 High End System having boot issues, please help :-(

a7mag3ddon

a7mag3ddon

a7mag3ddon

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Hello, I’m looking for some help from someone with above average knowledge of high end systems if possible.

I built my system Feb 2015 and consisted of the following....

I7 5820K CPU
Noctua NH-L12 cooler
Asus X99 Deluxe M/Board
16GB DDR4 Ram 4x4 Corsair LPX 2800
250GB Samsung evo SSD
Gigabyte G1 GTx970 Grfx Card
Corsair RM1000 Full modular PSU
Corsair K95 RGB Keyboard
Razer Lachesis Mouse (upgraded to a Roccat Tyone 6 months later)

Ok so I’ll start from the beginning, everything was fine for the first 6 or so months, then i noticed when my machine rebooted from warm, or cold boot i would get a little flashing cursor in the corner of the screen, and then after several power downs and back up it would boot.

After initial investigations all pointers on forums website said it was the windows installation so i figured ok ill get round to that and sort it out and re-install at some time.. Fast forward to January..... My machine is set up to reboot after a power cut and i use a WEMO to remotely turn on the machine, this has worked perfectly until this reboot issue started as you have to be there to stop windows doing a repair. So I figured, now is the time to sort this once and for all.

I decide to image the SSD to a spare drive and wipe and re-install (good job I did ) when windows 7 tried to re-boot again to do its usual "finalising settings" i got the flashing cursor again. I wiped and tried again sever times then decided to image my SSD back to what it was as clearly that wasn’t causing it.

After a little more investigation, a lot of people said it was possibly my memory, even though i had run a Prime95 test for 9hrs without issues along with Memtest 86+. On the basis of peoples responses I purchased another 16GB of Ram.
I figured if it wasn’t that id have 32 GB ram.

It wasn’t the ram, so now I have 32GB of good ram, I also changed the mouse and keyboard as well.

After another round of testing and messing around (won’t go in to detail) but i bought the new Asus X99 Deluxe 3.1 mainboard.

During the weekend I fitted the new board and I still have the same problem.

So to summarise I have tried the following..

1. New Ram
2. New Board
3. Mouse & Keyboard
4. New HDD(s)
5. Removing all components apart from GFX, CPU, RAM, PSU, MOUSE, KBD.
6. Re-Installing windows.

Board is on latest BIOS XMP is disabled and running stock settings.

I am still getting either a flashing cursor in the corner or a non-booting windows 7. I am able to hit DEL and get into the BIOS and change stuff every time without issues.

I have found a few posts and on YouTube videos that say it’s the xHCI handover that’s the issue, I have contacted the suppliers who contacted Asus on my behalf and they say there is NO such issues with their board.

So after spending in excess of £500 in replacing bits and hours wiping and re-installing I’m now stuck, I have only 3 more parts to change, the PSU/ CPU/ GRFX card.

I don’t think its the PSU or GRFX card because once the machine is running it will stay on for days and even weeks if i don’t reboot, and it plays all the demanding games AC, Witcher, Street Fighter V etc. and no problems.

Anyone got any ideas where to go from here? I’m pulling out my hair now!
 
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Hi and welcome to the forums :)

You've changed lots of components - have you tried changing the SATA cables? I've had those go on me before.
 
Really? A bios setting? But I have flashed the latest BIOS and reset to standard settings since this problem started (to try and fix it) , you don't think it should boot ok with safe defaults ?

If not, what do you suggest I check/ change ?
 
What is it set to in the sata settings.

If you change it on your next cool boot it will either boot or it won't. You can just change it back. It won't cause any problems.
 
When I say it wont boot, I can always get into the bios.

What do you mean what is it set to? Its set to boot from Port 1, I have also tried port 2 and same. all bios are defaults I figured best not to change.
 
Yeah you can always get back into the BIOS. There won't be any problems there.

In the settings it will say ide ahci and raid.

See what it's on. This might not be your problem. Just thinking of possibilities
 
Do you have a spare PSU to test with maybe a different GPU to see if that resolves the issue?

Would assume it's something like a faulty cable or loose connection, however you have replaced everything so cables will be plugged in properly. PSU or GPU would be my next go-to.
 
Oh the default is AHCI I can change it to IDE but then I would loose the Advanced part of the AHCI. BUT for testing purposes I shall try it. I only bought the board on the 26th of Feb the other day so I cant see it being a setting really.

I appreciate all your suggestions though :-) ill keep trying them.
 
ThaReaperGuy said:
Do you have a spare PSU to test with maybe a different GPU to see if that resolves the issue?

Would assume it's something like a faulty cable or loose connection, however you have replaced everything so cables will be plugged in properly. PSU or GPU would be my next go-to.
Click to expand...

Sadly I don't have spare PSU/ GPU due to costs, once booted tho as I said, it will stay on for weeks unless I reboot. plays all the high end games no probs and of course prime 95 in nightmare mode lol
 
When you say flashing cursor do you mean the bios check codes? Eg mine ends with a2 then it boots into wondows. If so what codes does it show before it hangs.
If you can enter the bios by hitting del can you enter the boot select screen? i think its f12 instead, then select your ssd from the list.
 
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Here is what I get.. (hope the picture comes out)



I will have to check the code but from memory it stops at something that states in the manual as generic " Legacy Boot "
 
What does the led readout on the motherboard say.
Can you press f12 to bring up the boot menu?
What boot settings do you have in the bios is csm enabled?
 
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Ill do some more testing when I get home, the machine works fine as far as turning on, going into the boot menu, changing settings ect every single time. I have standard settings (as in I have already reset them several times)

I will be home in 45 mins so will check led, not sure what csm means but will check the manual and see.
 
Ok so CSM is enabled and here are the settings, sadly i have tried 4 times to reboot and read the led code but sometimes this does happen, you think you fixed it because 10 times it reboots ok then starts again.

The only thing i have changed in the BIOS is disabled boot screen logo and increased the POST time out to maximum 10 seconds so it gives me time to read it if there is any issues i may have been previously missing.

 
With it disabled or on auto the machine cannot see any sata connections, the option to choose boot priorities ect are all greyed out.

When i re-enable it, the options come back and i can then see the sata ports and re-set the boot drive to P1.

just took me abouit 12 attempts to get the machine back but its booted again now.
 
Whats the boot priority set too? try just ssd disable everything else. Anything else connected to sata or usb? eg dvd drive, memory card reader, extra harddisk?
 
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