There was a post about this in the last few weeks and I can't find it, although I think it was for a 980Ti Hybrid.  On occassion, when I start up my computer, the card and pump fans run at 100%.  When I open up any program and check the temp, it shows that the card is in the high 80's range.  If I let it run, it never drops as if the pump isn't working or it is reading the temperature incorrectly.  I can't tell for certain if the pump is running because everything is vibrating from the fans.  It is wired as directed from EVGA for the install.  I don't have anything running to a MB header.  It has done this across multiple drivers and with no controller installed, MSI Afternburner, and Precision X.  I always do a clean install of the drivers and sweep with DDU.  It is very intermittent, though, and that makes it hard to pin down.  Normally, a restart fixes it.  Last night, however, it took four (4) restarts to make it work.  A few days ago the temperature jumped and the fans went to 100% when starting a game after utilizing the system for web browsing with no issue.  That required a single restart to rectify.
 
Any ideas?  I don't know if anything was resolved in the other thread as I can no longer locate it.  One of you will probably throw the link up with little effort...

How do you have the Hybrid install in your computer?
The Layout of: Fans Radiator and are you Pushing or Pulling or Both?
Is the Radiator Hot or warm?
Is the Air coming out of the rear of the Graphics Card Hot or warm?
"the card and pump fans run at 100% at start up" This is normal.
 
PS Remember that today is a workday so most members are at work.
Also it is Christmas or Holiday time too and members are taking care of what needs to be done.
 

In regard to your edit, everything actually seems to feel normal as far as the temperature being emitted.  It may be warmer from the card, but I can't leave it running for too long in the event that it really is pushing the temp up.  I tend to think that it is simply reading it wrong, but I may not be correct in that thought process.

CoercionShaman
In regard to your edit, everything actually seems to feel normal as far as the temperature being emitted.  It may be warmer from the card, but I can't leave it running for too long in the event that it really is pushing the temp up.  I tend to think that it is simply reading it wrong, but I may not be correct in that thought process.

It will down clock to cool off.
How old is this card, have you broke it in so to speak and is it a new card or used card?

I don't have that.  I use GPU-Z more than anything else.  I will have a look at it, though.

Shaman, I thought I read a post a couple weeks ago (thinking the same thing you are) about the guy's "sensor" going out.... he said he had a hybrid as well, and the issue was the sensor/pump which was making his fans spin at 100%, if I recall. I'm not sure if I have this information accurate or if this info is usefull to you at all, just providing some feedback.
 
 
I think I found it : http://forums.evga.com/Any-reason-why-my-Titan-Xs-on-board-fans-are-spinning-at-full-speed-at-startup-m2416810.aspx
 

The AIO does do a few seconds 100% after power on (or wake from sleep) but quiets down by the time something appears on screen to almost silent.  Remember the power consumption & load sitting there on windows is minimal.   Unless you have some TSR (or app) running that is screwing around.

I took a chance and let it run since not pushing out hot air.  After about 5 minutes, the temperature dropped and is holding at 32 degrees, which is normal in SWTOR.  Card down clocked like it thought it should until temps dropped.  Now functioning normally.
 

proxyissues
This may be software if temperature levels out.  Eg. A delay before it speeds up the pump and fan. 
Using stock defaults I haven't seen such a large spike.

Except that it is showing at over 90 degrees temperature on all monitoring software.  If it were just running full speed while showing a normal temperature range, I might agree.  After about a minute, it slowly started dropping the temperature reading over the next four minutes and the fans dropped as they should with the temperature to fan speed curve.  The card nor the radiator ever expelled 'hot' air during this entire process despite the temperature readings.

SOrry was only kidding.