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Watercooling 4x Overclocked cards

post #1 of 11
Thread Starter 
Hi, Im in need of some advice on watercooling components.

Ive got a system that Im trying to run 4x 5850s in. They're so close that they quickly get over 80C at which point they appear to begin to throttle, even at stock speeds.

Im wondering, what sort of pump and radiator would I need to cool all four of these cards? I think its going to need to be a quad radiator or better (dual double heatercore) to cool these to the point I want.

** Also, Im putting this stuff into a midtower case, so it'll be 3/8 ID tubing, and I need a pump that wont suck to mount, like the DD-D5 pump (just configured weird). Suggestions would be great.

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post #2 of 11
Yeah a black ice gtx 480 with some powerful fans would do the trick
Also the LAING DDC For the pump
     
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post #3 of 11
Thread Starter 
Quote:
Originally Posted by Spykerv View Post
Yeah a black ice gtx 480 with some powerful fans would do the trick
Also the LAING DDC For the pump
Would just one pump do it for 4x gpu waterblocks? Id trust a D5 for the task, but Ive never used a DDC pump before.
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post #4 of 11
Quote:
Originally Posted by 0rion View Post
Would just one pump do it for 4x gpu waterblocks? Id trust a D5 for the task, but Ive never used a DDC pump before.
D5 is for high restriction qbd I personally feel its underpowered. One pump is fine
     
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post #5 of 11
mcp 355 or 35x would be better since it has more head pressure to pump thru the blocks. It'll be more than enough to run that system. I used 1 pump for a long while until I got a 2nd for redundancy
 
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post #6 of 11
Quote:
Originally Posted by 0rion View Post
Hi, Im in need of some advice on watercooling components.

Ive got a system that Im trying to run 4x 5850s in. They're so close that they quickly get over 80C at which point they appear to begin to throttle, even at stock speeds.

Im wondering, what sort of pump and radiator would I need to cool all four of these cards? I think its going to need to be a quad radiator or better (dual double heatercore) to cool these to the point I want.

** Also, Im putting this stuff into a midtower case, so it'll be 3/8 ID tubing, and I need a pump that wont suck to mount, like the DD-D5 pump (just configured weird). Suggestions would be great.

You probably have your reasons for wanting to play with watercooling, but I would consider taking the money you'd spend on the setup and on blocks for all four of those already mid-range cards and upgrade to 2 6950s... It'll likely be about the same price, especially if you went full-cover blocks, unless you got a heckuva deal from someone looking to dump blocks for them.

They also shouldn't be throttling until 100c or so. AMD likes people to keep their processors cool and their video cards hot, as the fan profiles don't usually go nuts until you hit 100c or so in my experiences.
post #7 of 11
Thread Starter 
Quote:
Originally Posted by Dr.GumbyM.D. View Post
You probably have your reasons for wanting to play with watercooling, but I would consider taking the money you'd spend on the setup and on blocks for all four of those already mid-range cards and upgrade to 2 6950s... It'll likely be about the same price, especially if you went full-cover blocks, unless you got a heckuva deal from someone looking to dump blocks for them.

They also shouldn't be throttling until 100c or so. AMD likes people to keep their processors cool and their video cards hot, as the fan profiles don't usually go nuts until you hit 100c or so in my experiences.
Well, I have been "playing" with watercooling for about 6 years... Like you said I have my reasons for wanting to watercool them. 6950s dont perform for the application I want in this case. Right now Im getting 60% of the output Im looking for. I can get to 100% only if the cards get watercooled.

Im looking for the cheapest easiest way to cool the cores only, which means universal waterblocks.

One card seems to have the most trouble and probably has too much TIM, because the other cards are running around 80C, and this one is running at 96C.
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post #8 of 11
tried setting your ram speed to 300-400?

Ya 1 big rad should be fine.

BTW I have the same system as you on my desk right now,

Bought 4 mcw60,
a double rad and a single rad (Still in the mail)

EDIT:
did you get the sapphire extreme 5850's?


Edited by justinjja - 5/17/11 at 8:24pm
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post #9 of 11
Quote:
Originally Posted by justinjja View Post
tried setting your ram speed to 300-400?

Ya 1 big rad should be fine.

BTW I have the same system as you on my desk right now,

Bought 4 mcw60,
a double rad and a single rad (Still in the mail)

EDIT:
did you get the sapphire extreme 5850's?

Personally I wouldn't trust a quad GPU setup on a split 360 rad.

OP you're better off with a Black ICE GTX 480, or the RX 480 if you mean to sacrifice performance for silence.
     
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post #10 of 11
Meh...
Overclocked my Whole system pulls 600w from the wall


tripple will be fine if your ok with a 10c water-air delta
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