Just want to water cool a 9800 GX2, help me with parts...

[alexlyc]

After a day of research, I decide to gather parts to water cool my 9800 GX2. I don't plan on cutting my case for large radiator so single fan radiator mounted outside of the case is my only option. I am extremely sensitive to noise, so it's really important this setup can be as silent (not just quiet) as possible.

Here're the parts that I pick from Performance-PCs.com:

REVISED:
1) EK 9800 GX2 Acetal GPU Block (1/2" barb and tube) (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=23628:10082eda961a65b5f939046fb3f8f7f0 ) - $150
2) Swiftech MCR220 Res Dual Radiator (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_200&products_id=3653) - $50
3) Swiftech MCB-120 Radbox (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=1956) - $20
4) Swiftech MCP655 Pump (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=3112:0554ca7b3e0506bb5c7708bdfee9d5a5) - $80
5) Swiftech MCRES-MICRO Reservoir (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=3615) - $20
6) PrimoFlex Pro LRT Clear Tubing -1/2in. ID X 3/4in. OD (X4) (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=23367) - $9
7) Reuseable Clamps - For 1/2" Tubing (3/4" O.D.) - Black (X8) (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=3803) - $8
8) Feser One F1 Cooling Fluid - UV Blue - 1 Liter (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=22685) - $20
9) 2x Scythe S-Flex E / 2x Antec Tri-Cool - Already Have
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Total = $357 + $18 shipping (to CA)[/SIZE][/COLOR]

Am I missing anything? Is this setup even enough for a 9800 GX2? I don't plan on overclocked the card at all, but it needs to be able withstand 24/7 usage under the hot California summer. Also, anything that can lower the cost?

[roofsniper]

id get a mcr220 or some kind of dual rad over a single rad.

[alexlyc]

My concern with dual rad is that some of my cable from the PCI/e slots may be obstruct due to the height of the rad, but after looking at the thickness of the radbox, I think it's not a problem. By the way does the fan go inside of the radbox or on top of it? I don't know what the black cover plate is in the diagram, but that thing seems to obstruct a lot of airflow... is it removable?

[roofsniper]

the fan would go inside the radbox and im sure you could remove the back plate if you wanted to. also a s flex E runs at 1200 rpm right? for a single fan rad im not sure if that would cut it. if you really want it quiet maybe you could get more powerful fans and just fan control them?

[aspire.comptech]

Do you even need a radbox?

[roofsniper]

Do you even need a radbox?

well for a single rad fan mounted on the back of the case i don't see much of the point but if it was visible or if you need it to pop it off the case a bit like if you were having issues with the pcie slots then i could see why. but with this build i don't think its needed.

[aspire.comptech]

An option you should consider is buying a cheap fan, cutting out the internals and using that as a makeshift radbox.

It would save you a good 10 bucks and it becomes a shroud to improve airflow instead of an open box.

http://i5.photobucket.com/albums/y184/aspire727/IMGP0069Edit.jpg

My rig as an example.

[roofsniper]

yea that would be a better idea if you ask me. better performance and cheaper.

[zanzabar]

u should get a 355 with ek top for a pump, its smaller and has more power

and i have the primochill blue tubing for my current build and it looks better than the dye that ive used for people befor, and it wont leave crap in the loop or degrade in color

[aspire.comptech]

u should get a 355 with ek top for a pump, its smaller and has more power

and i have the primochill blue tubing for my current build and it looks better than the dye that ive used for people befor, and it wont leave crap in the loop or degrade in color

The DDC does not have more power.

[twwen2]

The DDC does not have more power.

The DDC3.2 is a stronger pump than the D5, everyone knows that. Though it won't make much of a difference in a GPU-only loop to be honest.

To the OP: I'd seriously look at a 120.2 rad, a single 120.1 might be pushing it with a GX2, those things put out some serious wattage! :eek:

[zanzabar]

The DDC does not have more power.

they are both ddc one is a 3.2 one is a 5

[twwen2]

they are both ddc one is a 3.2 one is a 5

I really don't want to sound like a moron, but that's not correct and may confuse someone. Liang makes the DDC3.2 and the D5.

[alexlyc]

Thx for all the advices so far.

I revised my parts, now with dual rad. There're two MCR220 tho. One with intergrated reservoir and one doesn't. Which one would you guys recommend? Do I really need a dedicated reservoir for such a small loop? By the way, did I pick the right tubes?

[zanzabar]

i like the t-line, u dont have to worry about the acitel boxes cracking or the space for the EK

[roofsniper]

Thx for all the advices so far.

I revised my parts, now with dual rad. There're two MCR220 tho. One with intergrated reservoir and one doesn't. Which one would you guys recommend? Do I really need a dedicated reservoir for such a small loop? By the way, did I pick the right tubes?

id get the one without a reservoir and just put your own reservoir somewhere else.

[aspire.comptech]

i like the t-line, u dont have to worry about the acitel boxes cracking or the space for the EK

What acetal boxes?

[brinox]

my thoughts on the 240mm radiator are it may not be enough to have low CFM fans on...

i have a wolfdale and a 4870 on water, with a single DDC-2 with petra's top, but previously had an 8800gtx and a quad (1.44v vcore) and sometimes my setup would get warm under load...

i have a PA120.3, which is a dual row radiator, and has an additional amount proportional to adding another fan of cooling capability.

just saying, cooling 2 G92 chips on a single row 2400 rad with as quiet as possible fans is going to be toasty, to a degree than most here would be comfortable with.

either way, with such a low CFM rating set of fans, you will pretty much have to turn the RPM of the pump down to an optimal setting. i currently do with my DDC-2. having it on full bore raises my temps at least 3°c on idle.

[armeniandave]

I have a 9800 GX2 watercooled with the EK waterblock. I went with the XSPC reservoir top on the DDC and a dual swiftech radiator.
There is virtually no noise and the loop is nice and compact.
I know its slightly different than the setup you are looking at but it works extremely well.

[hmmisee]

I would me too scared to water cool the GX2.
Having two pcbs would be a bit fiddly and i would be scrared of breaking something
good luck mate :up:

[Cptn Vortex]

Guys, I used to run my overclocked 9800GX2 with Dtek block on a single MCR120 and Dtek DB-1 Pump, and all temps stayed below 50 degrees full load. Core at 750/mem2080. This was with a Yate running about 1200rpm. The single 120mm rad is more than enough, the Dual will be extra insurance (might as well, you can add a chipset or second GPU down the road). I hate when people say a single MCR120 is not enough, cause it is.

[eXa]

It doesnt take much to beat stock cooling. But i bet u can shave of quite alot by going dual rad over that single.

[twwen2]

Guys, I used to run my overclocked 9800GX2 with Dtek block on a single MCR120 and Dtek DB-1 Pump, and all temps stayed below 50 degrees full load. Core at 750/mem2080. This was with a Yate running about 1200rpm. The single 120mm rad is more than enough, the Dual will be extra insurance (might as well, you can add a chipset or second GPU down the road). I hate when people say a single MCR120 is not enough, cause it is.

It really depends what temps you are willing to tolerate. 50 degrees is a good improvement over stock, but with a bigger rad that will come down even more. Each to their own though. ;)