Just installed a Hybrid kit, I was already really nervous about installing it, proceeded with extreme caution after watching a few people here give in depth guides on how to.  Got it all hooked up, pc boots to bios then goes to a black screen and the gpu fans go to 100%, the card prior was working fine, is there something I am missing? I did not use the fans included and the instructions did not say what to do with the cables coming out of the card, I assume they were for the fans but I am using a pair of Lian Li Unifans so I can't plug them into a traditional fan header.  Do I need install different drivers?

Hmm, that sounds like a protection is kicking in. Did you use the included gpu spring screws? That confused me at first, I thought the spring bracket was still needed. Caught it before booting up though. Also, did you connect the pump cable?

Thats what I thought might he bappening. So, I would check to make sure you are lining up pcb properly on shroud. Mine was a little tricky to line up properly, I kinda heard it click into place before I tightened the gpu screws.

I'm having similar trouble as well. I just installed the 3080 Hybrid Kit and it seems like the default thermal paste might not be making enough of a connection. The pre installed paste seemed really thin. My OC is not anywhere as good and my temps playing Cyberpunk are hitting 60. I have crazy good air cooling in the case as well so I know that's not the issue as I was getting 60c playing cyberpunk at 4K. I also can't get the Hybrid XOC Bios to install or should I use the FTW3 XOC Bios instead of the Hybrid one?

Xilorator
I'm having similar trouble as well. I just installed the 3080 Hybrid Kit and it seems like the default thermal paste might not be making enough of a connection. The pre installed paste seemed really thin. My OC is not anywhere as good and my temps playing Cyberpunk are hitting 60. I have crazy good air cooling in the case as well so I know that's not the issue as I was getting 60c playing cyberpunk at 4K. I also can't get the Hybrid XOC Bios to install or should I use the FTW3 XOC Bios instead of the Hybrid one?

You were doing better then I, after I took the card back apart as saw that the chip was still spotless and the heatsink didn't even look like it even touched the chip, I wiped it clean, applied my own paste and it seems to be working, I will run a quick Port Royal test then boot up cyberpunk and see if it holds.

That is what I figured/assumed, I just ran a port royal and my temps shot up to 80c, before on air my temps were around 67c, so not great, idle temps are way down but something isn't right

egtuner
I think I found the problem, I never cleaned off the old thermal pads so they were stacked on top of each other which is why I wasn't getting any contact on the actual gpu/block.  I'm sure to a lot of people this seems like an incredibly stupid mistake but instructions arent very clear.  They make it pretty clear to clean/remove the thermal paste from the gpu and the 2 strips highlighted in Step 4, but the only mention of the thermal pads just says to "Try to replace any loose thermal pads back onto the original heatsink/cooler"  I took that as if the thermal pads aren't loose, leave them and continue to step 5.  I feel like since they highlighted 3 section to clean they should also highlight the 5 areas with thermal pads.
Anyways I have everything somewhat going, but underload my temps are still around 65c, which isn't a significant improvement if at all compared to air so I feel like something still isn't right.

 
I installed last night and I am in the same boat. Stock setting I ran Port and I have an average temperature of 65C. I didn't apply any paste though, but that is maybe only 5 degree cooler than stock cooler on defult fan curve
 
https://www.3dmark.com/pr/662885
 

How is your pump noise? Mine is unbearable.
 
https://www.youtube.com/watch?v=2xK6itutaTE&lc=UgzMzpCZGWRZxOdb_Fl4AaABAg&feature=em-comments 
 
Overall I am very disappointed in this kit and wish I had just kept the air cooler on. Now if I want to put the cooler on the thermal pads are all messed up so I don't even know how to go about doing that. 

My card was hitting 79c in port royal after one loop, my hybrid maxes at 65 after 20.

just like the 2080TI HYBRID. is it possible to run the pump with a MINI GPU TO 4PIN cable straight to the motherboard and control  the pump with DC MODE ??

After I tried to remove half the thermal pads its "working" but to say I'm disappointed would be an understatement.  I'm able to run under load now around 65c but I have to have 4 fans on the rad running at 100%m which is +1 over just running the fans at 100% on air.  Monday I am going to contact support about getting a set of replacement pads.  The instructions are really great except for the very obscure part where it tells you "Try to replace any loose thermal pads back onto the original heatsink/cooler" really means remove and clean all old thermal pads and try to keep them together in case you need to use your orignal cooler.

kring
You absolutely must clean off the card, all caps, chips, VRM, etc... the card and everything on it should be spotless!  you should also clean off the backplate since that gets reused.  If you don't you won't get proper thermal transfer and you may create too much space between the heatsinks and the chips.   Which is what some of you are seeing where the plate doesn't make contact with the GPU.  besides this gap, you are probably getting poor contact on a lot of chips, or where old thermal padding was mashed into the chips/VRMs that is preventing heat from escaping for proper flow.
 
90% alcohol works well, but really you should have a CPU/GPU cleaning kit - there are special drops that dissolve the thermal pads.
 
I personally got rid of the pre-installed paste and used my own, went a little thicker too because on my first dry-fitting I noticed I wasn't making good contact with that paper-thin stock amount.
 
If done correctly you should see similar to this:

• In a 24c (72f) room you should have idle temps on the GPU around 25-29c, and on the rest of the mem/pow should register 31-38c.
• Under load it will vary greatly on case, but in my case that the CPU is exhausted and overall case stays close to room temp, my GPU runs between 52c & 56c (with a STEALTH fan curve @ 1200rpm) and mem/pow 56c to 63c.

Hmm so do you think my issue is I didn't clean the board well enough? I didn't feel comfortable digging around there and don't have any tools to get around the caps. Any suggestions on what to use to clean that?
 
If I remove the cooler and clean it better and repaste, will the pads from the hybrid cooler be stuck on the PCB now? or will they remain in tact on the heat sink. I am worried about damaging them. 

 

Rbk_3 - that's not bad, I personally would recommend going all the way, which I did on my install.  your biggest issue is the memory chip faces surrounding your GPU are not spotless.  get that perfectly black, no gray padding/paste.   to clean an easy tool are toothpicks which work great, for real tight areas, cut them at an angle or break them, paper folded in half and then run them between the LR22's.  if you had proper thermal cleaner, it would be super-easy, but in the absence, 90% alcohol works OK.

Congrats

Rbk_3

kring
You absolutely must clean off the card, all caps, chips, VRM, etc... the card and everything on it should be spotless!  you should also clean off the backplate since that gets reused.  If you don't you won't get proper thermal transfer and you may create too much space between the heatsinks and the chips.   Which is what some of you are seeing where the plate doesn't make contact with the GPU.  besides this gap, you are probably getting poor contact on a lot of chips, or where old thermal padding was mashed into the chips/VRMs that is preventing heat from escaping for proper flow.
 
90% alcohol works well, but really you should have a CPU/GPU cleaning kit - there are special drops that dissolve the thermal pads.
 
I personally got rid of the pre-installed paste and used my own, went a little thicker too because on my first dry-fitting I noticed I wasn't making good contact with that paper-thin stock amount.
 
If done correctly you should see similar to this:

• In a 24c (72f) room you should have idle temps on the GPU around 25-29c, and on the rest of the mem/pow should register 31-38c.
• Under load it will vary greatly on case, but in my case that the CPU is exhausted and overall case stays close to room temp, my GPU runs between 52c & 56c (with a STEALTH fan curve @ 1200rpm) and mem/pow 56c to 63c.

Hmm so do you think my issue is I didn't clean the board well enough? I didn't feel comfortable digging around there and don't have any tools to get around the caps. Any suggestions on what to use to clean that?
 
If I remove the cooler and clean it better and repaste, will the pads from the hybrid cooler be stuck on the PCB now? or will they remain in tact on the heat sink. I am worried about damaging them. 

 

You do not have to clean the card to the point of being "spotless" lol, only the GPU die.

The other components use thermal putty which is reusable itself.

The major issues indeed here with the two disappointed users is

1. mounting pressure, the heat spreader is obviously not making good contact

2. Stacking the thermal putties on top of one another and not removing and applying them back onto the old cooler as instructed which isncausing it to be nearly impossible to get proper mounting pressure

For point 2 above, if there was any confusion on if youre supposed to stack the pads on top of one another, there's a photo of the card right before it's about to be assembled and you can clearly see that there's no thermal putty left on the card at all.

I did a Hybrid install the other day on my 3090 XC3 Ultra, it was a butt clenching experience to say the least, but I managed to get it all together find, removing the stock heat sink was hard, it was like it was glued on thanks to the thermal putty, but slight wiggles and it came off.

I'm using the pre applied thermal paste, highest temps I'm seen were in Quake II RTX, that hit 63c, but I only have 50% fan, that was with the KFA2 BIOS, 111% power slider with a slight overclock.
One thing I noticed, when mounting the pump the cable to connect the fans went underneath the pump, so it didn't sit 100% flush, easy to move, but equally easy to miss as it will still go together fine.

Cleaned the card with 99% Isopropyl, we have 5 litre (1.3 Gallon for the US), bottles here as my wife uses it for cleaning too.

The only gripe I have is vram temps are still high due to rear vram chips still being passively cooled, I have a Noctua 92mm fan on the back of the card which helps.