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Upgrading my loop, need help

post #1 of 6
Thread Starter 
hey guys,

So decided to add another gpu block and rad to my loop. The things that i have now is a Swiftech MCP350, EK Water Blocks EK-Supreme HF Full Copper universal, XSPC RX240 Dual Radiator and a Ek fx 5x0 waterblock.

To that i want to add another rad and another 5x0 block.

My question is can the pump handle it or do i need to buy another pump? Also the sli fittings for the gpu blocks. Should i go serial or parallell? I know the difference but don't really understand why one would be better than the other one.
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post #2 of 6
Quote:
Originally Posted by Ace_finland View Post

hey guys,
So decided to add another gpu block and rad to my loop. The things that i have now is a Swiftech MCP350, EK Water Blocks EK-Supreme HF Full Copper universal, XSPC RX240 Dual Radiator and a Ek fx 5x0 waterblock.
To that i want to add another rad and another 5x0 block.
My question is can the pump handle it or do i need to buy another pump? Also the sli fittings for the gpu blocks. Should i go serial or parallell? I know the difference but don't really understand why one would be better than the other one.

It would probably be a good idea to upgade the pump. The MCP 655 is very popular, and would do the job.

From what I've gathered, the difference between serial and parallel is more of a preference thing than anything really measurable.

Good luck!
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post #3 of 6
I have a similar loop to what you will have after your upgrade.

pump/res>ek 240>gpu>gpu>black ice 360>cpu (same block as you)

My mcp 350 handles it quite well with the aftermarket acrylic top that is provided by the xspc res made for the pump. If you dont have the aftermarket top already I'd recommend it just to be safe.

So my advice would be go ahead and try it before you spend the money on a 655. If it doesn't work out with your loop, then upgrade the pump. Another option would be a second mcp 350 in series somewhere in the loop. That would also provide you with redundancy in case one pump should fail, and you'll still get enough flow to protect your components.
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post #4 of 6
Thread Starter 
Thanks for the info guys, think i will try first with the pump i have. The 650 is a bit pricey if i don't really need it smile.gif

What does the aftermarket top do? Does it improve anything compared to the stock one?
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post #5 of 6
My question is can the pump handle it or do i need to buy another pump?

Your pump alone will be fine, but it probably won't push over 1GPM which is the sweet spot that most people go after. It won't break anything, most likely just be a bit longer to bleed then usual.

If you really want to push over 1GPM, perhaps another 350 + a dual top would be the cheapest route, just make sure you have some kind of air flow over the 350's, as those are designed different then a D5 (smaller but heat is seperated from the loop)

or you can get 2x D5 and a dual D5 top (larger, comes in 2 flavors, D5 AKA 655 comes with a knob that can adjust the pumps rpm from 2000-4500 or something like that. The 655B does not come with a rpm control and is hard set on speed 4 which is around 4000rpm's. Does not overheat and heat from pump is dumped into loop)..

The latest and greatest is the MCP 35X, similar size to that of the 350.. it's smaller, heat is separated from the loop, required a bit of air flow or heat sink attached.

Also the sli fittings for the gpu blocks. Should i go serial or parallell? I know the difference but don't really understand why one would be better than the other one.

Parallel helps if you are really hurting for flow, otherwise it's exactly what LMG said..
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post #6 of 6
I think your pump will be ok, as others have said go for Parallel with the GPUs that will reduce restriction giving your pump an easier time of it. I run parallel on my 6950's and temps are pretty much the same as each other, right now typing this one GPU is at 29C the 2nd is at 28C and gaming its very much the same.
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