Watercooling 2 x 7970 and SB-E

inSilica

inSilica

inSilica

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Please excuse the lack of particulars, I will post a build log once build gets underway.

Some advice on WC please. If I can avoid a dual pump setup as in the following picture I will be v. excited. 24/7 build required. WC MOT for at least 2 YEARS!

35a81s5.png


N.B. The back of the case is very well vented.

This is considering 2 x 7970 [CFire] (overclocked) + SB-E chip (overclocked).

GPU Blocks- Probably EK
Mosfet / SB Block - Probably EK
CPU Block - XSPC

Will be converting tubing size (on EK blocks) to XSPC via adapter

Fluid: Mayhem's White Pastel

RX360 kit (i.e. submerged pump in reservoir)

Any thoughts? will I have enough pressure? a better setup? (prefer reservoir in 5.25 bay)

I'm willing to dismiss mosfet block and SB-Block and put another fan directly over the mosfet in particular, i.e.

1zoujwx.png


This will be my first WC setup and as you can see it's been a while since I upgraded :D
 
I would think you don't want the 2x120mm fans sucking hot air in to the case regardless, have them blowing up and out

ideally you want watercooling fans to all be push, not pull how you've got them as radiators like the extra pressure, same with the 240 rad inside, ideally you want the fans to be mounted flush to the rad and pushing air to outside the case

instead of having a rad inside the case could you just do a bigger single external rad?
 
andybird123 said:
I would think you don't want the 2x120mm fans sucking hot air in to the case regardless, have them blowing up and out

ideally you want watercooling fans to all be push, not pull how you've got them as radiators like the extra pressure, same with the 240 rad inside, ideally you want the fans to be mounted flush to the rad and pushing air to outside the case

instead of having a rad inside the case could you just do a bigger single external rad?
Click to expand...

OK the sucking and blowing issue has been discussed many times. I initially thought exactly the same, I can flip these easily. Bigger Rad possible, agree with this. I have a feeling this way I can lower the temp on the water as it leaves the CPU or SB block before it arrives at the GPU and so on to 360, cool it again before it hits CPU.

I will still need an intake fan .... which I will have to think about, could flip the exhaust fan right behind CPU to bring air in

James J said:
What case are you trying to do that loop in? The 240 rad at the bottom is in a very weird place. You sure it'll actually fit like that?
Click to expand...

This is on the antec p280, there is space I believe specifically designed for a 35mm 240 RAD.

I can always move the fans like so, it will just be a little tight I think on the near the 240 RAD so I will put it down to experiment.

2wc4l50.png


[N.B. Sorry I should have added: not drawn to scale]


My main concern is the pressure in the loop and the daisy chaining ... Any thought on SB block and mosfet?
 
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(EDIT) Replied at the same time. No idea how big an Antec P280 is but i;d be checking the rads can definately fit

Agree with James myself here, what case is this all going into. Is it one you have already or are you speccing up a new one as the configuration you've set out there isnt exactly conventional.

I'd expect the 240 rad to be on the chassis floor and fans blowing out and the 360 hanging over the top really isnt ideal as you wont get top fan to blow through as much space as it should be doing potentially causing a hot spot in the rad where the air flow is blocked by the case.

you've already stated a 120mm fan pushing out of the case at the back so why not choose a 240 rad for the top and another 120 for the rear. Which would mean all tubing is internally routed rather than outside the case which never looks the best but then thats up to you. Although if they both blow outwards then you'll find you've got a small part of the case where the airflow is opposing each other.

I'd be careful about choosing which case and once your decided on the case then start speccing up the rads. Although 2 x 240's should be enough for the whole system as long as you have good enough flow but a Liang D5 should sort all of that no worries. There are some good bay resevoirs that support those pumps so fill ya boots.

Also, why would you bother changing tubing sizes, sure using the same throughout the whole loop would not only provide better aesthetics but would ensure that flow is consistent all the way through the loop. Going bigger and smaller can cause flow issues so i'd stick to using one size thorugh out. The rads/cpu/gpus should all have a std g1/4 fitting unless you using somethign funny in there. So using a common connector would be the way to go for that.
I've always been a 1/2" tubing person up until my last build which has used 7/16"'s and to be honest I think this is pretty much optimal as the most of the fittings you'll find for G1/4 have an internal diameter of 10.5mm so the 7/16" or 11m ID tubing suits it bang on.
 
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Southbridge and Mosfets blocks are not needed if you have sufficient air flow through your system.

Dont get me wrong i'm all for more blocks but they really are only for aesthetics....and they'd really screw up the flow to the point where you may need a couple of pumps which you have said is not the route you want to go down.
 
sb block and mosfet block are not worth the hassle imho....
unless its for asthetics or just because you want to because it aint going to give you anymore horsepower.

the drawing you have done above couldnt be more wrong...there are no intakes at all, everything is exhausting. you need outside air to pass through the rads otherwise all your doing is trying to cool with warm case air....that 360 hanging over the end looks daft aswell, there are many great watercooling cases id look at getting one of those for what is some lovely kit your putting inside
 
I'd go bay res to 240, to gpu to cpu to 360 rad should end up neater, (particularly if you put the 360 ports at the other end)

I'd avoid the submerged pump versions as afaik the pumps aren't that great.
 
OK - I agree about the Mosfest and SB blocks

The P280 has already been purchased and has been sitting here since before christmas :D, I'm not a fan boy, I just think the P180 lasted my 5 years will become host to my new 15TB NAS as the P280 replaces it.

Thanks all for the replies.

lrlcr said:
I'd go bay res to 240, to gpu to cpu to 360 rad should end up neater, (particularly if you put the 360 ports at the other end)

I'd avoid the submerged pump versions as afaik the pumps aren't that great.
Click to expand...

cammy5477 said:
ps one d5 pump is all you will ever need
even if you had 4 gpu's/2 cpu's/mosfet/southbridge/ram/hdd and 5 x rads
Click to expand...

Thanks for the tip about the d5, submerged pump and tidying up the loop...

almightydutch, Many thanks on the advice on tubing

I am in full agreement about intake which is why I suggested the main exhaust.

I'm very certain the RS240 will fit nicely on the side of the HDD cage, I cut a piece of cardboard out and fits the RS240 +2mm easily on top an side

Eliminating the RX360 and replacing with RX240 and switching the fans, my current revision:

k0r7rl.png


Once I get the design I will spec the parts :)
 
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If you want a bay res with integration of pumps martin has some pretty comprehensive reviews of the koolance and the danger den ones. They seem a fair bit better than the xspc ones.

love this res/pumptop:

r-b-1000.jpg
 
lrlcr said:
If you want a bay res with integration of pumps martin has some pretty comprehensive reviews of the koolance and the danger den ones. They seem a fair bit better than the xspc ones.

love this res/pumptop:

r-b-1000.jpg
Click to expand...

yeah thats stunning with a price to match...as you said koolance do one like this aswell.....if only my dangerden case would take it

OP - that 240 rad at the bottom is doing absolutley nothing without at least 2 high static pressure fans tight to it, you cant have the fans 100mm away and expect it to work because it doesnt...in a perfect world you would have 4 fans on it in push/pull
 
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I can't wait to wc my pc with the above (it's in a box on the shelf currently)

It's not that much more than the koolance ones tbh and doesn't look pig ugly, it still does parallel loops as well.
 
mate just had a look at the antec 280 case and for what you want to do that case is going to make it difficult at best....there are loads of cases specific to your needs like the tj07 for example....the point is not just to cram it all in there but it has to do the job you want it to outwise it aint going to work that well, chuck that case on MM and lose 10% on what you paid for it and do it right first time, you need to be dragging cool air through those rads aswell otherwise your going to be starting a thread in the near future called "paid 2k for a watercooled rig and its ****" but its your money fella :)
 
lrlcr said:
I can't wait to wc my pc with the above (it's in a box on the shelf currently)

It's not that much more than the koolance ones tbh and doesn't look pig ugly, it still does parallel loops as well.
Click to expand...

it is by the time you import it from the states....
they send it very quick though within 3-4 days to your door :)
ive had loads of stuff of them (when the pound was strong)
 
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