Maximus VI Formula Issue

[Geralt]

Long time no post here, but you always been helpful bunch so here goes:

My motherboard (I believe ) developed an issue. I was watching film when suddenly everything froze. I've powered off the PC , tried to switch it back on and it wasn't POSTing anymore. Q Code was stuck on 78. I proceed to remove GPU and try on board thinking this may be an issue) but still the same. I had old GPU lying around (that I know is working ) but issue was the same. So I pulled out the RAMs ( I had them in red slots) and tried one by one . Still the same. Strangely enough that when I put in either stick of RAM ( I have 2x 8G in red slot number 2 (counting from CPU socket) Q Code shows 55 no RAM detected. When I put RAM in black slots and after disconnecting everything from motherboard and powering it up and down about dozen of times, it went to BIOS but froze straight away. I have tried to do UEFI flashback with usb stick and ROG connect button but it was the same. I also have done UEFI reset at the back of the mainboard

so now with everything removed and only GPU is in, most of the time I get the 78 code and every odd time I POSTs but freezes on UEFI.

Any ideas apprecieated. ( I dont think I can RMA the board as I bought it Nov 2013 so looking for newer board but want to be sure it's the motherboard).

Full specs:

I7 4770k
GTX970
2x8 GB Corsair Vengance 1866 Mhz
840 Evo SSd
Cooler master 620 W PSU
3x 1TB WD Black

Thanks!

[Ciarlatano]

Code 78 is listed as "ACPI module initialization".

Smiki had this problem once and got it solved. Hopefully he chimes in.

[realneil]

Did you try the support forums on the ASUS site?

[Geralt]

Thanks Neil,

Didn't think of that. Posted there as well.

Anyone else wants to chime in you are more than welcome

EDIT:


Stuff posted above I've done yesterday. Today (after leaving PSU unplugged for whole day) I've tried to put my mouse and keyboard in the 2 most bottom USBs (the ones by sound card) and now it seems to post every time but then either freezes on bios or tries to boot but then Q code shows b2 and it reboots and then hangs on bios screen

[realneil]

My first step would be to try an alternate known-good power supply to eliminate power problems.

[joshjaks]

Uggh, that sounds so much like a socket issue that I had with my Crosshair V Formula-Z. I hope it's not, especially being a Maximus, but did you happen to change anything with your CPU cooling recently? Sometimes those sockets are brittle and crack some channels from the stress. It will give you all kinds of problems after that.

This seemed to be relegated mostly to the Crosshair boards. I wouldn't expect this to be the case with a Maximus, but I wanted to throw out the info just in case. After you try everything else, you may be left with RMAing it.

Edit: Oh and you got a 3 year warranty on that so you can still RMA if you got it in 2013.

[Geralt]

Hi Joshjacks,

Haven't touched my cooling in over a year. I have custom loop with XSPC rasa as CPU block so I don't think this can put much strain on the board. As for warranty, yeah I've found my warranty papers so happy with that, but ASUS makes a bit of a hassle for me on that beacuse I bought the mobo in Poland but live in Ireland and their support claims that I should go back to my retailer for any warranty even though the warranty is manufacturers warranty and retailer has nothing to do with it. So currently I'm mailing back and forth with them to get them to accept their own warranty terms

[joshjaks]

Hi Joshjacks,

Haven't touched my cooling in over a year. I have custom loop with XSPC rasa as CPU block so I don't think this can put much strain on the board. As for warranty, yeah I've found my warranty papers so happy with that, but ASUS makes a bit of a hassle for me on that beacuse I bought the mobo in Poland but live in Ireland and their support claims that I should go back to my retailer for any warranty even though the warranty is manufacturers warranty and retailer has nothing to do with it. So currently I'm mailing back and forth with them to get them to accept their own warranty terms

Yeah, Asus support is the worst. Makes buying a new board worth it just so you don't have to deal with that back and forth crap.

[Smiki007]

Code 78 is listed as "ACPI module initialization".

Smiki had this problem once and got it solved. Hopefully he chimes in.

Yeah, I've had once a similar problem (don't recall if it was 78 or 7B or something like), with my Rampage IV Extreme board, after I've tried everything I'd return the board to official importer and they said that two ram slots was faulty. They gave me another board in replacement (an Rampage IV Black Edition). Still working as a charm.

[swiftex]

I have a maximus vi, have you tried reinstalling bios?

[Ciarlatano]

I have a maximus vi, have you tried reinstalling bios?

He states that he did in the first post of the thread.

[swiftex]

Sorry, read and must have missed that part. Thanks.

He states that he did in the first post of the thread.

[swiftex]

Any update?

[joshjaks]

Hey Swiftex, have you gotten a hearty to the forums yet?

[swiftex]

No Sir, but I can resolutely say I have now! Thank You!