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View Full Version : MCP 355 with XSPC top


william86_98
09-24-09, 05:53 AM
I'm thinking of getting the : XSPC Premium Acrylic Reservoir for Laing DDC with my pump. My question is, will I need to buy another reservoir in addition to this one? Something like this? EK-Multioption RES 250 Rev 2 http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=318&products_id=21464

Or...maybe a more relevant question...would having an additional reservoir improve the cooling performance?

Thanks so much.

Daddyjaxx
09-24-09, 06:03 AM
That is the only reservoir you will need. Adding another one will not help your temps it will most probably hurt them. Your flow will go down because it is another thing the pump has to pump the water through. If you are thinking this is a good idea because it is more water, you are right, at first your temps may be better but eventually the water will reach equillibrium.

dark bishop
09-24-09, 01:59 PM
i just used a t-line right above the intake.

Otter
09-24-09, 02:15 PM
If you have enough of it (gallons), water can produce a slight flywheel effect, but it won't make the loop cool more efficiently. Yes, more water will hold more heat, but the point of watercooling is not to heat water, it's to transfer the heat to the air. If you want to add something to make your cooling more effective, get another rad.

baditude_df
09-24-09, 02:20 PM
The XSPC res top not only improves the stock flowrate of the 355, but it holds a buttload of fluid. It is a very good invesment, and a great way to simplify and shorten your loop.

aphellyon
09-24-09, 02:40 PM
...not to mention they also look great. :)

hokiealumnus
09-24-09, 02:51 PM
+1 to the previous two posts. Absolutely love my res top! :)

Spawn-Inc
09-24-09, 08:11 PM
while i don't have the mcp355, if i did i would have gotten the XSPC res tops in a heartbeat.

muddocktor
09-24-09, 09:12 PM
I just bought a MCP355 and XSPC res top from the Classifieds last week and got it in Monday and made a simple test loop to test everything out. And I found out a couple of things about it also while testing. First, is now that I have one on hand I can see why the Res top gives better flowrate and pressure over the regular XSPC top due to the design of the Res top. The return line ends only around 1/2" or so from the pump suction, so in effect it supercharges itself due to the return fluid injecting right at the pump suction. Second, it also showed me that bleeding all the air out of the system with the Res top will be a little tricky. Since the pump suction is so close to the return line in the res and actually blows right into the suction of the pump, entrained air tends to be re-injected back into the pump suction. This isn't a reall big deal though as you can cock the pump/res a bit while also pinching down on the pressure side tubing, restricting and slowing down fluid flow through the loop. This will give the air entrained in your loop a chance to stay in the res instead of being recycled into the loop. Other than that, it's a great design and if the return line wasn't placed as it is then the Res top wouldn't work as well as it does.

baditude_df
09-24-09, 09:35 PM
It's funny you should mention the air bleeding issue. That's the first thing that crossed my mind when I took this thing out of the box. Turns out it bled out in somewhere between 20 minutes to half an hour. That's to the point where there was absolutely no sound coming from the pump. Not noticeably longer than with the micro res rev2 as far as I can recall.
And good point about the design. It might not bleed as fast as it could, but jetting the water into the impeller does increase the output of the pump.

Daddyjaxx
09-25-09, 05:46 AM
The quickest way I found to bleed with this res is to fill the system up just enough that the water is free flowing throughout the entire loop but that the injection tube is just below the water line. The larger bubbles work their way out pretty quickly that way. After they are out, fill the res up a little more. As more bleed away, keey filling the res but don't completely fill it until everything is bled. If you fill the res all the way at the beginning, it takes forever to bleed.

When it is all said and done, you can't even tell that this thing is running. The only way I could tell is when you start the system, the water level drops a couple of mm's.

astrodanco
09-25-09, 12:14 PM
You'd think XSPC would come out with a res top with a sliding input port. Slide it up while bleeding air out. Slide it back down after the air is all bled out.

baditude_df
09-25-09, 01:02 PM
The quickest way I found to bleed with this res is to fill the system up just enough that the water is free flowing throughout the entire loop but that the injection tube is just below the water line. The larger bubbles work their way out pretty quickly that way. After they are out, fill the res up a little more. As more bleed away, keey filling the res but don't completely fill it until everything is bled. If you fill the res all the way at the beginning, it takes forever to bleed.

When it is all said and done, you can't even tell that this thing is running. The only way I could tell is when you start the system, the water level drops a couple of mm's.

You'd think XSPC would come out with a res top with a sliding input port. Slide it up while bleeding air out. Slide it back down after the air is all bled out.

Both good ideas.