Maximus VIII Hero Freezeing (ACPI error?)

[xXDeltaXx]

Hi, I've just upgraded from a 7+ year old machine, so I may be a little rusty when it comes to trying to problem solve the following...

When I'm in game (Alien Isolation, occasionally GTA V, so far not X-COM), I'm seeing the occasional system freeze.
I have to do a hard reset to clear the error, windows boots OK and it's like nothing has went wrong.
Checking the event log, I'm seeing the following error, which I think is related (it is the last error I can find before the "system lost power" one, from the restart):
Driver ACPI returned invalid ID for a child device (5).
After a bit of googleing, I'm still not 100% sure what this is.

System specs;
Motherboard: ASUS Maximus VIII Hero,
CPU: Intel 6700K (no overclocks),
RAM: 32GB Corsair Vengence LPX 2133 (4x 8GB),
Storage: 512GB 850 Pro SSD as Boot, 2x 4TB WD RED Pro in RAID 1 via the onboard Intel controller
GPU: ASUS Strix 980Ti (no overclocks)
PSU: EVGA Supernova 1000P2
OS: Windows 7 Ultimate

Motherboard BIOS is up to date, windows is up to date, all drivers are up to date...

Any ideas...?

[xXDeltaXx]

Hi, just a quick update - prompted by a message from Bahz...

I updated to the latest BIOS (1402) around the end of Jan / beginning of Feb... so far I've not had any ACPI Event 56 errors show up since the 11th of Feb (not sure when I updated exactly, so there may have been one or two since the update).
However, there have been little to few of those errors, and more importantly, I don't believe I've had a freeze / crash while running that that BIOS.

Incidentally, I've responded to Bahz's request for an copy of the event 56 error - so, hopefully that may give some insight as to what the issue was.

It is worth noting that I've not applied any overclocks or anything as of yet - so I will be back after I've got things set as I want them (plus a new install of Windows) & will let you know if I have any issues.

[fresh_muffins]

xXDeltaXx wrote:
Hi, just a quick update - prompted by a message from Bahz...

I updated to the latest BIOS (1402) around the end of Jan / beginning of Feb... so far I've not had any ACPI Event 56 errors show up since the 11th of Feb (not sure when I updated exactly, so there may have been one or two since the update).
However, there have been little to few of those errors, and more importantly, I don't believe I've had a freeze / crash while running that that BIOS.

Incidentally, I've responded to Bahz's request for an copy of the event 56 error - so, hopefully that may give some insight as to what the issue was.

It is worth noting that I've not applied any overclocks or anything as of yet - so I will be back after I've got things set as I want them (plus a new install of Windows) & will let you know if I have any issues.

BIOS 1402 seems to have fixed the ACPI errors for me as well, once I updated they vanished entirely. It's worth noting that in my case I still continued to get freezing even after the ACPI errors disappeared.

I recently switched to a new set of G.skill RAM "designed for compatibility for Z170" (I was previously on some Crucial RAM "designed for X99"). It's been a little over a week and I haven't had any freezing which is great. Someone in one of the other threads discussing this topic also seems to have had some success swapping to RAM advertised specifically for Z170.

Unfortunately given how infrequent and bizarrely random the freezes are I don't know if swapping to a different set of RAM is the solution at this point. In regards to how random the freezes are I was relatively freeze free for about 2-3 weeks after I built my PC (I think it happened once during those first few weeks). Then the following 2-3 weeks I had freezing probably 2-3 times a week on average. Now since I swapped I've yet to have any freezing issues.

Again like I said it's probably way too early to tell but could this just be a RAM compatibility issue?

[ByblosHex]

I registered an account to say that I'm experiencing this same exact problem.

[Legolas]

DId you anyone of you try using BIOS 2202 to see if that will fix your guys issues.

[Severan]

Remove all your memory sticks and leave one alone. If you still get freezes then cycle through all the sticks. I'm betting it's a dud memory stick.

[Bahz]

Everyone that's still having these freezing issues, like some mentioned it was caused by a combination of AI Suite 3 and GPU Tweak II. The latest AI Suite version will fix the freezing issue, please read Asus-OP's post.

https://rog.asus.com/forum/showthread.php?90459-Release-Candidate-for-fix-to-Vender-dll-issue-with-A...