I'm buying a GTX 770 w/ waterblock already installed on it and I'm wondering...
How does it work? I know it's better at being quiet vs two fans, but how does it work? Do I have to do anything to it water wise (like fill it with coolant or anything?) I know it seems to be a stupid question, but I've never really heard of a waterblock on GPUs. Thanks in advance! 

I'd like to say thanks for your reply! I am watercooling my CPU and I have everything for it, but no I do not have the pump and neccesary materials for watercooling the GPU as well. I was buying it with waterblock already installed from someone on ebay, but they'd be sending the original acx cooling on it as well, I've just yet to find a video on UNinstalling the waterblock
 

Sprinx
Ah, okay good. In your first post, it seemed like you didn't know what you were getting into
 
If you're already cooling your CPU, you should be able to work the GPU into the same loop without a problem (then it would look more like the picture I linked to). You can use the same pump, reservoir, and coolant (but you probably need to add a little extra coolant, to account for the extra tubes and the GPU waterblock).
 
You just have to think about how you will run the water through, as if you only have one radiator, then either your CPU or GPU will get hot water pumped into it. In the picture I posted earlier, note how the coolant goes from
PUMP --> GPU --> SMALL RADIATOR --> CPU --> LARGE RADIATOR --> PUMP
 
I guess he doesn't have a reservoir (maybe it's not necessary in all cases, like I said, I've never done this personally). But he is cooling the water from the GPU before it goes into the CPU, so that it cools the CPU better. Then it all goes to the large radiator, which cools it down as cold as it will ever get.
 
If you only have one radiator, then it would go like this:
PUMP --> GPU --> (hot water) CPU --> LARGE RADIATOR --> PUMP
 
So, in this case, the hot water going in would limit the overclock on your CPU. Not a huge deal, if your CPU is already fast. GPU overclocking definitely brings more benefits.

Order does not matter in a water loop. It even doesn't matter if you have both of your radiators last back-to-back. The temp in the loops stabilizes equally regardless of the configuration you have. You will get the same temps on your GPU and CPU no matter what (given all other variables are constant of course).
 
Edit: Sorry; I was merely saying order of the radiators/blocks does not matter. Order from res to pump is the only thing that is a must because you don't want your pump running dry!!
 
If the op has already bought the GPU with the water block, then he might as well add it to the current loop he has. Would kind of be a waste if he goes to air cooling it while the water block is sitting on the side doing nothing since a water loop is already in place for the CPU. Besides, if your pc is already quiet, you are going to hate the sound of a fan running at 80-90% fan speed (especially if you OC it).

Sprinx

astacy12Order does not matter in a water loop. It even doesn't matter if you have both of your radiators last back-to-back. The temp in the loops stabilizes equally regardless of the configuration you have. You will get the same temps on your GPU and CPU no matter what (given all other variables are constant of course).
 
Edit: Sorry; I was merely saying order of the radiators/blocks does not matter. Order from res to pump is the only thing that is a must because you don't want your pump running dry!!

Thanks for the correction. I think I had read somewhere that it did matter, but like I said, I have never done this myself.

No problem Water cooling definitely has its benefits, but those don't come without risks. Though, if done correctly and maintained well, those risks at almost all eliminated.

ok from what I get from your question that you do not know anything a bout water cooling
and I'm willing to bet that you are not water cooling your CPU with a custom Loop you are using a AIO ( All in One ) water cooling kit like the H100 or something like that
and that is not really water cooling and is way easer to do
 
water cooling can be really expensive when don right and you want quit and performance and there are a lot of parts you will need
1. pump
2. Radiator ( you will need a 360 Rad + for a CPU and GPU )
3. SP Fas for the Radiator
4.Reservoir
5. Water Blocks ( one for the CPU one For the GPU )
6. Fittings
7. Tubing
8. Fluids
9. Case that is good for water cooling ( but not a must you can all ways have the Rad outside the case )
 
now before you even buy all the parts you need to plan and match all the parts so they will work  together ( like the fittings you get need to be the right size for the tubing )
another big thing to know is that your plan will never be perfect no matter how much you plan so be prepared to spend more money till you get it right
so water cooling is a lot of work and not for every one but
if after all that you still want too water cool there are a lot of YouTube videos on how too
here are some pictures of my rigs so you get a idea



 
 
    
so my advice to you would be just use the Air cooler Or get a AIO for a GPU
till you watch and do a lot of research on water cooling  
 
 

astacy12
Very nice Was the rigid acrylic difficult to work with? Probably going to try it out with my next build.

thanks mate
no not really you just need to plane the loop a littler  more because it is harder to band but other than that its not hard
and I think it looks a lot better then regular tubing and if you are going to use color water then acrylic tubing is the way to go
because it wont break down like regular tubing so the water will not clog your water blocks  or change color 
and another benefit is that you wont need to change the water as often
the only downside is that it will cost you more money then regular tubing
but still I would say go for it and do acrylic tubing