Watercooling 2x 7950GX2. ( Quad gpu ! )

Danger Den GX2 watercooling block. 2sets.
















This post has been edited by uglyvamp: Jul 14 2007, 07:18 PM

looking at the workmanship, its around 7/10 rating only .. pretty bad as i had to touch up a bit.


here the BGA Rams on the vga card is cooled by the waterblock as well.

DD did not provide any other heat transfer material, they expect their waterblock to touch the vga's memory modules 100% i guess. I'm rather doubtful bout this, thus, I add on 3M Thermal tape for better contacts with the memory modules.


this is where the 2seperate block "communicate" with each other. The 2blocks are secured by 3screws & 1gasket lining. The no. 8 shape is the gasket.




all the tools required to fix up the blocks






need a darn hole for water exit from the vga card

ok .... now the problem is the barbs. the barbs are using 1/2 size. with G1/4 threading, like most standard barbs used on other mid-high end watercooling stuffs.

the 2darned barbs u see on the pic is not aligned together.





DD do provide me with a shorter barb, but shorter barb mean less security on the hose. I'm debating with myself wat solution now .... sux

U shud haf gotten the other brand. IIRC it was Innovatek. It's so much more elegant. The block is designed so nicely it looks like a single piece instead of the weird 1+1 design of the DD. Also the pipes exit from the side instead of top n bottom. Top , bottom pipes r just plain weird n cause lotsa install problems like what ure facing now.

That"Warranty Void" sticker is also plain stupidity, y on earth they need to put it on the front where it's clearly visible. So ugly to haf those stickers in a pimped rig. Ppl buy 7950GX2 watercooled sure wanna pimp mar. With those ugly stickers there in plain view how to pimp?


Just found the Innovatek pix. Now, that looks really 1337 man. Look at the build quality n design, awesomeeeeeeeeeeee.



This post has been edited by ianho: Oct 13 2006, 04:34 PM


Attached thumbnail(s)

but the innvotek 1 most probably cant fit on the second card, as u can see in the picture. the second card leave so little space to the bottom. you might have to cut the bottom as well.

and here a Aquacomputer GX2 block both inlet and outlet facing up.


This post has been edited by hollowbean: Oct 13 2006, 05:03 PM

apa mau headache susah susah





swiftech spacer kit for gx2..

This post has been edited by PowerSlide: Oct 13 2006, 05:22 PM

ian .. i'm cooling 2pcs gx2 leh .. sure those can fit ?

i've checked with them & they take longer to make, thus, i drop the idea of getting from them and went for DD instead ..

That's a really nice kit. Can be done on our own if we buy the long mobo standoffs but we cant get the interconnect bridge which is included with this kit. But it's only practical for usage with a single 7950GX2. If u use it on a Quad SLi set up there's gonna be 8 joints on it. More joints= more chance for leakage. With a proper block like the DD, Innova n Aqua, there's only 4 joints to deal with.






Anyway, I've thought of a solution for gary's dilemma. Y not use all L joint barbs? That wud solve everything including a much nicer n compact water loop. Here's a pix to describe what I'm thinking about.

This post has been edited by ianho: Oct 13 2006, 05:45 PM


Attached thumbnail(s)

Indeed a headache..

The L joint should work but would there be too many corners to turn through both the GC loops. Will it even drop water pressure even...?

b4 i started off this project, i did a lot of research on which block to get. I"ve even approached local machinist on the average cost of making a custom block, but that turn out to be some SGD$300 which i feel its a bit too high & won't look pretty for the final product. Besides, if there's some technical/engineering fault, it'll be a waste of time & $ . ..

i turn to DD in the end bcos,

1) the blocks are made of copper. ( whereas others are alu, if u check again )
2) able to quad sli easier based on the concept i've for this stoopig TT big useless steal casing .. but again, this is casemodding !!! cannot fit die die also must make it fit !! arrgh ...

Infact, I've picked carefully which mobo to go alone with as well ( P5N32 SLI Premium, but alas this customer ... blur, he bought the TT Armour way b4 consulting me sux ..... and didn't want to change the chasis & insisted on using back the same...

geezz ... and so I thought well, take it as a challenge then .


thanks .. Ian, after looking at ur drawing, i figured out for some 15mins that it'll work out but there'll be too many routing ...

I wanna keep the entire setup as clean & neat possible with little corners like elbow joints. See, i'm only using 1x Laing D5 pump & its cooling 3x 120mm radiator + a about 60cm tall water reserator. Afraid the water pressure might drop. But hey !! Unless i use Eheim... heh.

anyway, i've changed the exisitng barb u see to the shorter ones instead. They call it "perfect seal". I"m crossing my fingers for now, till the silicon gel sets hard tomorrow, I'll do a test run for a few hours.

wish i don't have to dismantle & redo again ... cos its the last biatch thing i wanna do .. blah !!

God be with me ..




here b4 I do water test run, i dont want to take any chances & pray that it wont' leak, with the shorter barb. Though it does fit very well. Sorry guys ... I forgot to take a pic b4 applying the silicon gel. Yes, it looks like shitt for now but i've other ideas how to cover it up ...

if this doesnt work well, i guess i've to engage my machinist to custom make 2darn barbs for me .. lol


This post has been edited by uglyvamp: Oct 14 2006, 02:17 AM

Ian & guys ... do u tthink pump out water to vga blocks first then the CPU or the CPU first then to 4x gpu cores ??

which way u guys reckon is better ? sorry though i've somewhat decided cpu first due to the setup design i've in mind .. but i'd like to hear ur opinions as well ..

I always pump to GPU 1st coz the heat of CPUs is nothing compared to GPU nowadays. My main concern is always GPU heat. N also the loop looks a lot cleaner n simpler. Water pump to GPU to CPU so the loop goes from bottom of case to top in 1 clean loop. Instead of the water pump long hose to go up to CPU then down again to GPUs.

you can try to use those sieve used in cars to cover the car wires should make it look sexy

In the original Gx2 cooling system, the bottom card's fan is blowing onto the top 1? Won't the top 1 be very hot?

Why not try Koolance, they looks nice n spacious, IMO
Koolance L06




This post has been edited by Zicron: Oct 14 2006, 04:56 PM

uglyvamp, i'll pray that the 2 joint between the 2 gc wont leak

It doesn't blow onto the top card. It's separated by the PCB n the hot air gets blown out tru the back PCI plate. The top card does run about 10C hotter though. It's because the top card has very little space for intake of fresh air to the fan.

can onli say "walao weh"
this rig too power full

can try benck ka after finish??

hehe didnt really know whether the fan sucks in air or not from the main round hole...guess it sucks air in. Thanks

Sometimes it is really paint in the ass to setup cool and quiet system ....no offense just my sense....

so much of money spend on getting the right hardware..... especially among the gpu and cpu cooler....

Anyway the rig still looks nice ..too bad with that spec why dont get a nice Lian Li or Silverstone case that is available widely there....