Ek pump/res combo or

So i started buying my loop stuff today. Im torn between doing a pump/res combo or a seperate pump and reservoir setup. I purchased the EK Coolstream PE 360 and some primoflex tubing kit but i stopped there. Im torn on what to do about a reservoir and pump. I want really good flow because i might be adding 2 gpu's into the loop later on when i do my next gpu upgrade. I was looking at the https://www.ekwb.com/shop/ek-xres-140-revo-d5-pwm-incl-pump combo but thought well what if that pump isn't enough? Will this fit into my corsair air 540d case......etc. I will also be adding in a 240 rad as well when i do my gpu addition but for now i just want to get up and going. So pump/res combo or seperate? What pump is the right pump?
 
Solution
there are a lot of metals in the loop. rad tubes, fittings, blocks, even something in the pump.
Nickel is neutral, that's why a lot of blocks are nickel plated.
this D5 (or any other D5 from other manufacturers) is excellent choice.
The thing is that you can easily change (for example to separate them) it later with a couple of fittings and a piece of tube.
I don't know what GPUs you have in mind, but generally, modern cards like GTX 1070 or 1080 are very cool.
I have no idea why would anyone want a dual GPU setup today. It's kinda useless/pointless.
 
Well I'm planning to wait until Volta next year before I upgrade gpu's and that's when I will do the gpu blocks most likely. But I was told that pump/res combo could not be ran seperately. I'm still trying to figure out if a pwm pump that's controlled via types or software like the d5 I listed is better or worse than a pump that I can manually change the speed of on the pump itself. I don't want to short change myself on a pump. I ideally want the res visible in the 540 case and not mounted where the psu goes. This is my first loop and I want it to be flashy lol.
 
The one that's mounted to the reservoir says pwm but I didn't see like a manual switch on it. What's better? There is so much to a custom loop it seems like and I want to get what's best. I know once I get it done it'll seem easier. Just need to make sure I get the right pump and res
 
this guy, has a lot of useful videos about water cooling https://www.youtube.com/user/Jayztwocents
about pumps, reservoirs and anything else.
Basically, once the liquid is moving in your loop, there is no difference how fast it does it. So IMHO PWM for pump has no benefit. Just another thing that could die. Also, the cost more.
Don't be locked into one vendor. Most D5 pumps are made by swiftech, others just rebrand them.
There are very nice combos from XSPC and alphacool.
Also, the best depends on what you define. My best is: flexible loop where i can quickly change components, good performance, universality, low noise.
that resulted in flex tubing and semi universal components for GPU cooling. I hate the idea to pay 100-150$ for the block that will fit one card only.
So this is my old dead GTX 570 http://i.imgur.com/ee7ylSt.jpg
and here is the brand new and shinny GTX 1070 with the same parts http://i.imgur.com/kKRcPih.jpg
BTW, the CPU block is since the LGA 775 - only changed the retention bracket :)
If you do care about the look - than it's a completely different story.
 
Well I read some pumps have a 1-5 setting and others are pwm controlled. I follow jay religiously but I'm feeling just a confused after his vids as I was before his vids. I'm feeling like a seperate pump and res is best then I can if I want mount the res to the pump but if I go with that ek pump/res you can't run them seperately.
 
Im not stuck on EK they are just what my local microcenter carries. I like having a physical store to go to if i have a problem with product failure or something. But if the pump is all i have to order online then i guess i would be ok with that or pump/res. The 170 may be a bit tall. The 540 case is semi limited on space.
 
So i think i want to stay with a smaller size reservoir as of now just incase i have to put it on the back side of the case. The d5 vario pump seems like a good idea but then some people are swearing by the pwm. I think im going to order a d5 vario though then pick up the res from my local microcenter. If i want to connect the pump and res on top of each in the event they need to be stacked what would i need to stack them on top of each other?