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Maximus VI Formula is dead? Help me figure out why, please!

post #1 of 8
Thread Starter 
The rig is describbed in detail on my sig but, basically it is/was an ASUS Maximus VI Formula with a run-of-the-mill i7 4770K.
Well, the battery died and I had to disassemble the whole system since the battery on this mobo is ingeniously hidden behind the "shield" of the mobo (lame plastic cover in front and lame metal board in the back united by 9 screws). mad.gif

I've replaced the battery, re-seated the CPU with fresh TIM (Coolab Ultra), re-filled the water cooling system and it was ok for 24 hours.

Then it just turned itself off, out of the blue (I was in the middle of a GTA V mission biggrin.gif, had been playing it for some 2 hours).

There was no noise, no blue screen or game crash (was on Windows 10 64bit).
It just went off like in a power failure or something like that.
Now it won't turn on, no matter what.

Mobo lights continue on after the event but, I can't even power up the system before posting.
No codes, no beeps, no nothing.
I've tried the board's own power button or the cases's: no dice.
PSU is working ok (I've powered up another board with it to test it and fired it up with the wire-bridge trick in 24pin male plug).
I've tried changing the battery and tried to post without a battery.
I've obviously powered it down and unplugged everything, leaving only the one DIMM slot populated: didn't work.

The only clue, and its a major one, is that I found the 8PIN ATX 12V cabble half-inserted doh.gif

Did I kill my motherboard?
damn
Edited by Ulver - 7/27/16 at 12:52pm
post #2 of 8
Thread Starter 
So, is there really anything else that can be tried with this board?

I've already:
-Reset CMOS;
-Re-seated CPU and DIMM;
-Removed all devices;
-Removed the CMOS battery;
-Replaced the CMOS battery that I had already replaced in the last 24h;
-Re-installed all devices, one by one, trying to post in between;
-Checked socket pins (OK);
-Checked PSU (OK);
-Re-plugged all cables;
-Left only 24pin, 6pin, CPU and one DIMM populated;

All of this out of the case, over the mobo box.

Now, in a last ditch, almost mythological try, I am leaving the board unpplugged and without a battery installed for 24 hours (does that even have a chance of working? saw some guy advising people to try that or the jumper reset trick, but I think this motherboard doesn't have that jumper since it has a reset cmos button).

Anything else that I could try, guys?
post #3 of 8
Quote:
Originally Posted by Ulver View Post

So, is there really anything else that can be tried with this board?

I've already:
-Reset CMOS;
-Re-seated CPU and DIMM;
-Removed all devices;
-Removed the CMOS battery;
-Replaced the CMOS battery that I had already replaced in the last 24h;
-Re-installed all devices, one by one, trying to post in between;
-Checked socket pins (OK);
-Checked PSU (OK);
-Re-plugged all cables;
-Left only 24pin, 6pin, CPU and one DIMM populated;

All of this out of the case, over the mobo box.

Now, in a last ditch, almost mythological try, I am leaving the board unpplugged and without a battery installed for 24 hours (does that even have a chance of working? saw some guy advising people to try that or the jumper reset trick, but I think this motherboard doesn't have that jumper since it has a reset cmos button).

Anything else that I could try, guys?

Could a drop of CLU have gotten somewhere you wouldn't want?
post #4 of 8
Thread Starter 
Quote:
Originally Posted by Duality92 View Post

Could a drop of CLU have gotten somewhere you wouldn't want?

Yeah, that thought has crossed my mind as well.
I looked everywhere and couldn't see it though.
Very little leaked out of the CPU/Heatsink sandwich thumb.gif

I'm baffled here.
Thinking it must've been that damned 6pin power cabble that was left half-inserted redface.gif
post #5 of 8
Quote:
Originally Posted by Ulver View Post

Yeah, that thought has crossed my mind as well.
I looked everywhere and couldn't see it though.
Very little leaked out of the CPU/Heatsink sandwich thumb.gif

I'm baffled here.
Thinking it must've been that damned 6pin power cabble that was left half-inserted redface.gif

6-pin? I only see an 8 and 4 pin...
post #6 of 8
Thread Starter 
Quote:
Originally Posted by Duality92 View Post

6-pin? I only see an 8 and 4 pin...

8 pin, sorry thumb.gif
post #7 of 8
Quote:
Originally Posted by Ulver View Post

8 pin, sorry thumb.gif

I'm saying this, because PCIE 6 and 8 pins aren't the same at all as EPS 8 and 4 pins. The release catch is on the opposite side of the 12v from each other. So let's say you mistakenly used a PCIE cable to one of the EPS, forced it upside down in the connector, you'd have 12v going into the ground and the ground connected to the 12v.
post #8 of 8
Thread Starter 
Oh, that would've been bad!
Quote:
Originally Posted by Duality92 View Post

I'm saying this, because PCIE 6 and 8 pins aren't the same at all as EPS 8 and 4 pins. The release catch is on the opposite side of the 12v from each other. So let's say you mistakenly used a PCIE cable to one of the EPS, forced it upside down in the connector, you'd have 12v going into the ground and the ground connected to the 12v.

I see! It would've been bad!
But I think it was not the case, though.
I didn't get to lay out the cabling again because the system was already up and running before.
Actually, I started having BIOS settings "forgotten" and knew that my battery was dying: I opened it up specifically to replace that battery.

After replacing it, I did plug that same EPS 8pin connector up above in the mobo back (it was the same one that was running the system for 2 years +.
I didn't change the connector and don't think I could force that one in upside down as it wouldn't go in without shearing the plastic (fool-proof shapes, as you know).
Furthermore, the short-circuit would've been instantaneous in that case, right?
But the rig worked flawlessly, overclocked mildly up to 4.3GHz with 1.31v (I know, everyone and their mama can OC a 4770K up to 4.5GHz using less than 1.3V but its the chip lottery and mine was not "golden" like all that tongue.gif ).

That rig handled hours of gaming with CPU and GPU overclocked before "burning out" (turning itself off to never come on again).
Just wish I knew what happened exactly...

There is nothing else to do, right?

Mobo lights up when powered but doesn't respond to the power button. worriedsmiley.gif

I'm just afraid to buy a new mobo and find out that my CPU is also fried mad.gif

It would be a good chance to upgrade to a faster cpu if only I had the cash for it...

Unfortunately, my car has broken down and I don't/didn't have cash to fix it right away (transmission is dead, over 5000 USD needed to save it), now my PC is dead.
I'll laugh here, as it beats crying biggrinsmiley.gif
Edited by Ulver - 7/28/16 at 5:42am
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