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UPDATE: All good to run XSPC X20 pump then a Swiftech MCP655 after one another?

post #1 of 13
Thread Starter 
Hey guys

So I'm finalizing some stuff, and just wanted to see if a 360+240 with AP15's + XSPC fans in pull would be enough for my 7970 + 2600K? And I want to make sure my X20 750 Pump/Res will handle it all?

Basically my loop will be something like:

Res/Pump > RX240 > 7970 w/EK-FC7970 block > RX360 > 2600K w/Rasa block > Res/Pump

I'm not putting a res. between each component for temps; as i've read the loop will reach a equilibrium anyways, this is just the cleanest route I think.

Thanks guys!

EDIT: see my last post. Didn't want to start a new thread! THANKS! thumb.gif
Edited by crackerssss - 4/11/12 at 2:06am
post #2 of 13
Quote:
Originally Posted by crackerssss View Post

Hey guys
So I'm finalizing some stuff, and just wanted to see if a 360+240 with AP15's + XSPC fans in pull would be enough for my 7970 + 2600K? And I want to make sure my X20 750 Pump/Res will handle it all?
Basically my loop will be something like:
Res/Pump > RX240 > 7970 w/EK-FC7970 block > RX360 > 2600K w/Rasa block > Res/Pump
I'm not putting a res. between each component for temps; as i've read the loop will reach a equilibrium anyways, this is just the cleanest route I think.
Thanks guys!

Your rads should be enough even with hefty overclocks on both components, I'm not sure about the pump though as I've heard they aren't great.
It might be okay but I have heard of a couple of failures and personally I wouldn't trust it as it's an important part of your loop, even if it does work I doubt your flowrate would be very good with all that restriction.

Hopefully someone else can comment on whether the pump would be okay, I'm pretty sure it'd be borderline but I'm not 100%.
If you need to, you could pick up a pump pretty cheaply from bmaverick. He's selling MCP350s for $35 and any feedback I've heard has been positive.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by Mike-IRL View Post

Your rads should be enough even with hefty overclocks on both components, I'm not sure about the pump though as I've heard they aren't great.
It might be okay but I have heard of a couple of failures and personally I wouldn't trust it as it's an important part of your loop, even if it does work I doubt your flowrate would be very good with all that restriction.
Hopefully someone else can comment on whether the pump would be okay, I'm pretty sure it'd be borderline but I'm not 100%.
If you need to, you could pick up a pump pretty cheaply from bmaverick. He's selling MCP350s for $35 and any feedback I've heard has been positive.

Yeah I've heard as much. I looked into that pump from that lad, I PM'd about sending one to AUS biggrin.gif

Might as well ask in this thread now its up: How do people go about getting custom pump tops and whatnot? I really don't understand how they attach at all.
If I bought a http://www.pccasegear.com/index.php?main_page=product_info&cPath=207_160_1285&products_id=18303, would that fit onto Bmavericks pump?
post #4 of 13
That will give you a nice delta. Just use your stock pump/res till the pump craps out. People have run a few more blocks than what you have w/o issue.
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post #5 of 13
Quote:
Originally Posted by tsm106 View Post

That will give you a nice delta. Just use your stock pump/res till the pump craps out. People have run a few more blocks than what you have w/o issue.

This.

I've got that pump on an RX360, Raystorm, and two Heatkiller blocks for my CF setup and its not having a problem. Can't tell you what my flow is as i've got nothing to measure it, but I would guess around 1GPM which is ok. I do plan to get a better one eventually, but not until it starts giving me problems as the res/pump combos from XSPC with the powerful pumps are like a £100 here.

If your unlucky and get a bad one XSPC will usually just send you out another one as they know there's been problems with them, otherwise it should be fine for you.
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post #6 of 13
Thread Starter 
Thanks for the responses

I have a new question:

Is there anything wrong with running two pumps and two reservoirs in my loop? I am going to get a pump from BMaverick + a EK-DDC X-RES 140 Acetal Reservoir top for it. Is there any harm in going something like:

XSPC Res/Pump > DDC Pump/EK Res > RX240 > 680/7970 full cover block > 360 > 2600k Rasa block > XSPC Res/Pump

Reason being I want to jump on a cheap pump + the EK 140 res is on sale, I figure it can't really harm and if the XSPC one craps out I can roll with the DDC + EK res top?

Thoughts?
post #7 of 13
Ditch the second res and you are golden.

Running two reservoirs can cause issues. Basically if the second res isn't properly sealed it ends up filling with water and overflowing. There are also issues with loosing all the fluid momentum which can have an adverse effect on flow rates. It is a lot easier to just run one res.

Running two pumps is no problem. The only limitation is that the overall loop flow rate should not exceed the rated maximum flow rate of either pump, which would be rare.

Just make sure that when you are bleeding your loop you only run one pump, this will avoid the possibility of running either pump dry. A stopped pump has very little flow restriction so no need to worry about that.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by GingerJohn View Post

Ditch the second res and you are golden.
Running two reservoirs can cause issues. Basically if the second res isn't properly sealed it ends up filling with water and overflowing. There are also issues with loosing all the fluid momentum which can have an adverse effect on flow rates. It is a lot easier to just run one res.
Running two pumps is no problem. The only limitation is that the overall loop flow rate should not exceed the rated maximum flow rate of either pump, which would be rare.
Just make sure that when you are bleeding your loop you only run one pump, this will avoid the possibility of running either pump dry. A stopped pump has very little flow restriction so no need to worry about that.

Awesome info! Damn I love this site and it's useful patrons! Definitely have some rep, on me thumb.gif

I might just go for the pump and a top, BMaverick seems legit and a cheap, quality pump is always a good thing to have handy rolleyes.gif
post #9 of 13
bit late to chime in but, i'd rate saving some cash and buying a better pump that will last the next few builds.
mcp35x would be rather good. (you've got enough rad for that plus another card. btw)
have you tried this pump / rad optomiser to estimate restrictions etc. ? - http://martinsliquidlab.org/pump-and-radiator-optimizer-spreadsheet/
not a bad thing to play around with. ^
Martins liquid lab is a pretty solid place to get some figures and guide you when buying parts.
Here is the X2O 750 review from ages ago http://martinsliquidlab.petrastech.com/XSPC-DualBay-ReservoirPump-Review.html
Looks like the Rasa block your using is more restrictive than the deltaV2 from the review and the gpu block might put you sub .9gpm with that pump on its own.
750 + the ddc should put you above 1.2gpm 'ish and would be alright.
I had a xspc pump like that sounded like a little fishtank. ditched it when i rebuilt my comp and put the cards on water.
or wait till you upgrade next time and grab a MCP35X2 from pccg, should be in stock by then.
post #10 of 13
Thread Starter 
Ok update:

I found a local seller and bought a Swiftech MCP655 + 4 90 degree Rotary fittings + 11 barb fittings + T line fitting for $75 - WIN!!

So I now have the X20 Pump/Res and a MCP655. My loop for the moment goes:

X20 Res - X20 pump - MCP655 - RX360 rad - Rasa Block - X20 Res

Will one pump after the other be fine? Anyone have any idea whats a good setting for the 655? Thanks, really wanting to setup tonight! smile.gif
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