• We've upgraded our forums. Please post any issues/requests in this thread.

Quietly cool 2 GTX285s with a single 120 Rad/fan??

Joined
Nov 22, 2007
Messages
1,554 (0.42/day)
Likes
340
Location
Annapolis, MD
System Name n.audBl
Processor E8500 @ 3.80GHz
Motherboard ASUS Striker Extreme
Cooling Full liquid (everything except power supply)
Memory 4Gb OCZ DDR2 PC9600
Video Card(s) Dual EVGA GTX 280 SSC Edition
Storage Dual WD Raptor in RAID 0 (300Gb), Dual WD 1Tb Cavair in RAID 1
Display(s) Dell 2407 24" HD+ Widescreen
Case Theraltake Tai-Chi
Audio Device(s) X-Fi Fata1ty (bleh!)
Power Supply Ultra X3 1000W
Software Win 7 64bit
#1
Do you think it can be done and if so how would you do it? The video cards, rad, a pump, and perhaps a small res would be the only things in the loop.
 
Joined
Jun 16, 2008
Messages
3,166 (0.91/day)
Likes
467
Location
North Chili, NY
System Name Woot!:D
Processor Intel Core i5 4690k
Motherboard AsRock z97 Extreme3
Cooling Stock
Memory 16GB 1333 DDR3
Video Card(s) EVGA GTX 780
Storage 240GB Intel SSD 2TB Seagate Barracuda
Display(s) Cintiq 21UX 1600x1200, LG 23" 1920x1080
Case Thermaltake v6
Power Supply EVGA 850 B2
Software Windows 7 Home Premium 64 bit
#2
I bet it could be done. Probably will just have higher temps. I'd guess about the same as air, but quieter.

Dunno, haven't played with watercooling yet.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#3
Do you think it can be done and if so how would you do it? The video cards, rad, a pump, and perhaps a small res would be the only things in the loop.
I think it could be done. You will need a thick 120mm Radiator like a Thermochill, XSPC, etc. something with wide fin spacing. Then you'll need some higher CFM fans in a push/pull config. I'm currently using some Scythe slipstream 88cfm's. You might want to go for the 119cfm versions. Hopefully when they are under full load you won't saturate the loop with heat. You may want to go with GPU blocks instead of full coverage blocks to keep the temps down from the voltage componentry. Heatsink the mosfets and VRM's and keep them cool with a side fan if possible.
 

TheShad0W

New Member
Joined
Nov 18, 2009
Messages
148 (0.05/day)
Likes
17
#4
It's probably technically possible, but it's borderline and a twin or triple rad would give you much better temps.
 
Joined
Dec 27, 2007
Messages
8,506 (2.34/day)
Likes
2,072
Location
Kansas City
System Name The Dove Box Rev 2.0
Processor I7 5930k
Motherboard Asus X99
Cooling Custom water loop
Memory 4 x 4GB 3000 MHz DDR4
Video Card(s) 2x MSI 780 Ti's in SLI
Storage 500GB Samsung 850 PCIe SSD, 2x1TB WD Blacks, 1.2TB NAS
Display(s) 27" Asus 144Hz
Case Enermax Fulmo GT
Audio Device(s) ON BOARD FTW
Power Supply Thermaltake Toughpower 850W
Keyboard Logitech G510
Software Win 10 64x
#5
Dude, seriously. A 120.1 can't cool anything decently. Well I take that back it could probably cool a e2100 undervolted to .9V.

No way would I EVER suggest anyone using a 120.1 rad, especially for two VERY hot G200 chips(if not full coverage blocks).

And as far as flow order:

pump->rad->gpu1->gpu2->res->pump.
 

TheShad0W

New Member
Joined
Nov 18, 2009
Messages
148 (0.05/day)
Likes
17
#6
Dude, seriously. A 120.1 can't cool anything decently. Well I take that back it could probably cool a e2100 undervolted to .9V.

No way would I EVER suggest anyone using a 120.1 rad, especially for two VERY hot G200 chips(if not full coverage blocks).

And as far as flow order:

pump->rad->gpu1->gpu2->res->pump.
The H50 is a single rad, and I get load temps of about 70-72 degrees with an i5 @ 4Ghz.

That said, two Gtx285's will put out still more heat :D
 
Joined
Dec 27, 2007
Messages
8,506 (2.34/day)
Likes
2,072
Location
Kansas City
System Name The Dove Box Rev 2.0
Processor I7 5930k
Motherboard Asus X99
Cooling Custom water loop
Memory 4 x 4GB 3000 MHz DDR4
Video Card(s) 2x MSI 780 Ti's in SLI
Storage 500GB Samsung 850 PCIe SSD, 2x1TB WD Blacks, 1.2TB NAS
Display(s) 27" Asus 144Hz
Case Enermax Fulmo GT
Audio Device(s) ON BOARD FTW
Power Supply Thermaltake Toughpower 850W
Keyboard Logitech G510
Software Win 10 64x
#7
Exactly, and that H5O costs as much as a decent air cooler with the same amount of noise.

The cost alone of the waterblocks is nearly the cost of a 3rd party cooling solution.

A very cheap and inexpensive alternative to help cut temps would be a backplate if not already installed.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#8
Dude, seriously. A 120.1 can't cool anything decently. Well I take that back it could probably cool a e2100 undervolted to .9V.
Sorry, no. My XSPC RX120 has cooled a Q6600 to 4ghz, an E8600 to 5ghz, and handles my PII 965 just fine. Never once have I had to pull back due to temps.
 
Joined
Dec 27, 2007
Messages
8,506 (2.34/day)
Likes
2,072
Location
Kansas City
System Name The Dove Box Rev 2.0
Processor I7 5930k
Motherboard Asus X99
Cooling Custom water loop
Memory 4 x 4GB 3000 MHz DDR4
Video Card(s) 2x MSI 780 Ti's in SLI
Storage 500GB Samsung 850 PCIe SSD, 2x1TB WD Blacks, 1.2TB NAS
Display(s) 27" Asus 144Hz
Case Enermax Fulmo GT
Audio Device(s) ON BOARD FTW
Power Supply Thermaltake Toughpower 850W
Keyboard Logitech G510
Software Win 10 64x
#9
You also have excellent case flow with two fans on your rad.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#10
You also have excellent case flow with two fans on your rad.
Exactly. That's why I initially said he will need a thicker 120 radiator and a push pull fan setup of at least 88cfm.
 
Joined
May 22, 2007
Messages
666 (0.17/day)
Likes
66
System Name Good enough
Processor I5 3570k
Motherboard ASrock Z68 Extreme 7
Cooling Megahalem
Memory 16G crucial sport BLS2KIT8G3D1339DS1S00
Video Card(s) 780 ti kingpin
Storage OCZ Vertex 4 VTX4-25SAT3-128G 2.5" 128GB SATA III
Display(s) Some Korean 2560 1440 thing with surround x 3 asus vh238
Case Lian Li Knockoff
Audio Device(s) logitech g930
Power Supply Evga SuperNOVA 1600. Won the early adopter contest paid 175 a/r, overkill
Software Win 8
Benchmark Scores 4.3 steady axtu slider overclock. Worship me.
#11
Dude, seriously. A 120.1 can't cool anything decently. Well I take that back it could probably cool a e2100 undervolted to .9V.

No way would I EVER suggest anyone using a 120.1 rad, especially for two VERY hot G200 chips(if not full coverage blocks).

And as far as flow order:

pump->rad->gpu1->gpu2->res->pump.
Don't know why you say that, I've been gaming in aion for two hours straight, load temps on a 5870 are 45 c with a good silent pull only fan on a thicker 120.1, forgot the name bought it used here for like $40. I think maybe model was pa 120.1 by thermochill but I'm guessing.

Now I think pushing two 285's might be pushing it but I think it's doable.

My setup...

 
Joined
Nov 22, 2007
Messages
1,554 (0.42/day)
Likes
340
Location
Annapolis, MD
System Name n.audBl
Processor E8500 @ 3.80GHz
Motherboard ASUS Striker Extreme
Cooling Full liquid (everything except power supply)
Memory 4Gb OCZ DDR2 PC9600
Video Card(s) Dual EVGA GTX 280 SSC Edition
Storage Dual WD Raptor in RAID 0 (300Gb), Dual WD 1Tb Cavair in RAID 1
Display(s) Dell 2407 24" HD+ Widescreen
Case Theraltake Tai-Chi
Audio Device(s) X-Fi Fata1ty (bleh!)
Power Supply Ultra X3 1000W
Software Win 7 64bit
#12
Hey thanks for all the input thus far folks.

I'm no newbie to watercooling. I agree with what everyone is saying so far. I'm pretty sure if done right a 120.1 rad could do fine cooling two 285s, but probably not any quieter than the stock air HSFs. I just wanted to kind of confirm with the masses what I was already thinking.

I have a new setup in a relatively small case that doesn't afford much room for radiator installation. It would be easy to install a 120.1 but any more than that would require some creativity. With a bit of rearranging and some cutting here and there I could probably get a pair of 120.1 rads in... I just don't really want it to turn into a big project. I have too many other projects that need to get finished so starting another one would just be a mess.
 
Joined
Nov 22, 2007
Messages
1,554 (0.42/day)
Likes
340
Location
Annapolis, MD
System Name n.audBl
Processor E8500 @ 3.80GHz
Motherboard ASUS Striker Extreme
Cooling Full liquid (everything except power supply)
Memory 4Gb OCZ DDR2 PC9600
Video Card(s) Dual EVGA GTX 280 SSC Edition
Storage Dual WD Raptor in RAID 0 (300Gb), Dual WD 1Tb Cavair in RAID 1
Display(s) Dell 2407 24" HD+ Widescreen
Case Theraltake Tai-Chi
Audio Device(s) X-Fi Fata1ty (bleh!)
Power Supply Ultra X3 1000W
Software Win 7 64bit
#13
Dude, seriously. A 120.1 can't cool anything decently. Well I take that back it could probably cool a e2100 undervolted to .9V.

No way would I EVER suggest anyone using a 120.1 rad, especially for two VERY hot G200 chips(if not full coverage blocks).

And as far as flow order:

pump->rad->gpu1->gpu2->res->pump.
You're the only one I disagree with Mlee :p

A 120.1 rad is a very capable cooling device if implemented correctly. A 120.1 can cool an entire MB all by itself. It is also sufficient for cooling a CPU, and quietly I might add. And if I only had one GTX285 I would have no reservation cooling it on a 120.1 rad. The trick is it needs to be a good rad and needs to be fed from air outside the case.

But, all that said... 120.1 rads are best at supplementing a larger more elaborate cooling loop, like to help dissipate some heat between cooling blocks.

Also, if space allows, it is always better to plumb multiple GPUs in parallel, not in series. Series loops stack heat which means the second GPU will get slightly warmer coolant since the coolant has already absorbed heat from the first GPU in the series.
 
Joined
May 12, 2009
Messages
5,167 (1.65/day)
Likes
944
Processor Intel Core i5-3570K
Motherboard Gigabyte GA-Z77N-WIFI
Cooling Corsair A70 (Passive)
Memory Samsung 8GB MV-3V4G3D/US
Storage Samsung PM841 256GB
Display(s) Dell UltraSharp U2412M
Case BitFenix Prodigy (Arctic White)
Power Supply FSP Zen 400 (Fanless)
Software OS X 10.9.1 Mavericks
#14
I think it could be done. You will need a thick 120mm Radiator like a Thermochill, XSPC, etc. something with wide fin spacing. Then you'll need some higher CFM fans in a push/pull config. I'm currently using some Scythe slipstream 88cfm's. You might want to go for the 119cfm versions. Hopefully when they are under full load you won't saturate the loop with heat. You may want to go with GPU blocks instead of full coverage blocks to keep the temps down from the voltage componentry. Heatsink the mosfets and VRM's and keep them cool with a side fan if possible.
e, aren't SlipStreams one of the worst static pressure fans ever?
 

Binge

Overclocking Surrealism
Joined
Sep 15, 2008
Messages
6,979 (2.07/day)
Likes
1,734
Location
PA, USA
System Name Molly
Processor i5 3570K
Motherboard Z77 ASRock
Cooling CooliT Eco
Memory 2x4GB Mushkin Redline Ridgebacks
Video Card(s) Gigabyte GTX 680
Case Coolermaster CM690 II Advanced
Power Supply Corsair HX-1000
#15
The H50 is a single rad, and I get load temps of about 70-72 degrees with an i5 @ 4Ghz.

That said, two Gtx285's will put out still more heat :D
Wow, that's worse than air cooling. i7 920 @ 4.2GHz with a lapped TRUE and push/pull cools to 68C under load.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#16
e, aren't SlipStreams one of the worst static pressure fans ever?
I don't even care what "static pressure" means. Explain this to me. :p They blow a lot of air, more than the three previous fans I had. They perform the best. So if "static pressure" equates to performance. No, these fans are superb. Wherever you heard that these fans aren't good (newegg review? :roll:), it's a lie.

Really it makes no sense. Static pressure is pressure without motion. How does that relate to a spinning fan?
 
Last edited:

TheShad0W

New Member
Joined
Nov 18, 2009
Messages
148 (0.05/day)
Likes
17
#17
Wow, that's worse than air cooling. i7 920 @ 4.2GHz with a lapped TRUE and push/pull cools to 68C under load.
Tell me about it, have been considering swapping over to one of the new zalman coolers http://www.overclockers.co.uk/showproduct.php?prodid=HS-041-ZA.

A TRUE here costs about £65/$100, whereas I got my H50 for £50

That said - I've got it sat at 3.85Ghz currently and the case is really quiet, and that's not too bad :D

Edit - Was looking at getting the Zalman CNPS10X Extreme, got reviewed as having better performance than the NH-D14 by guru3d.
 

MKmods

Case Mod Guru
Joined
Feb 26, 2008
Messages
5,697 (1.59/day)
Likes
1,735
Location
Nevada
System Name Crossflow III
Processor AMD 965 (4.04Ghz)
Motherboard Asus Crosshair III
Cooling Air
Memory 4 gigs Mushkin 7-7-7-20@1T
Video Card(s) single 9800GT
Storage Raptor 150's in Raid0
Display(s) LG Flatron 24"
Case Custom
Audio Device(s) AuzenTech X-Raider W/OP637
Power Supply Custom modded Corsair 750HX
Software Win 7 64/Solaris Utility
Benchmark Scores 3DMark06--21963 so far
#18
e, aren't SlipStreams one of the worst static pressure fans ever?
I don't even care what "static pressure" means. Explain this to me. :p They blow a lot of air, more than the three previous fans I had. They perform the best. So if "static pressure" equates to performance. No, these fans are superb. Wherever you heard that these fans aren't good (newegg review? :roll:), it's a lie.

Really it makes no sense. Static pressure is pressure without motion. How does that relate to a spinning fan?


I think this means because the motor assembly is so small there is little torque of the motor so the fan dosent have as much oomph..(fan spins fine, blows air fine but if there is restriction (close spaced fins) they put out quite a bit less airflow)

The Slipstreams work fine (I have a bunch) but when compared to the SanyoDenki crazy fans (that seem to have 1000X more torque to them) they can seem to be a bit anemic.

And to the OP a very good single 120mm rad would work but barely (probably similar to the original air cooling). To cool one of them fine but 2 GPUs is pushing it. If you are going through all the added complexity/cost of water cooling may as well do it right and use a good double 120mm rad(at least).
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#19
I think this means because the motor assembly is so small there is little torque of the motor so the fan dosent have as much oomph..(fan spins fine, blows air fine but if there is restriction (close spaced fins) they put out quite a bit less airflow)

The Slipstreams work fine (I have a bunch) but when compared to the SanyoDenki crazy fans (that seem to have 1000X more torque to them) they can seem to be a bit anemic.

And to the OP a very good single 120mm rad would work but barely (probably similar to the original air cooling). To cool one of them fine but 2 GPUs is pushing it. If you are going through all the added complexity/cost of water cooling may as well do it right and use a good double 120mm rad(at least).
Ahh. Right! Hence why they are perfect for a widely spaced fin radiator.:toast: It's amazing how much air they push for being only 1900 rpm.
 
Last edited:

MKmods

Case Mod Guru
Joined
Feb 26, 2008
Messages
5,697 (1.59/day)
Likes
1,735
Location
Nevada
System Name Crossflow III
Processor AMD 965 (4.04Ghz)
Motherboard Asus Crosshair III
Cooling Air
Memory 4 gigs Mushkin 7-7-7-20@1T
Video Card(s) single 9800GT
Storage Raptor 150's in Raid0
Display(s) LG Flatron 24"
Case Custom
Audio Device(s) AuzenTech X-Raider W/OP637
Power Supply Custom modded Corsair 750HX
Software Win 7 64/Solaris Utility
Benchmark Scores 3DMark06--21963 so far
#20
to me appearance matters quite a bit and the Slipstream fans just "Look" really cool. For that aspect the makers did a great job with them.
 
Joined
Nov 22, 2007
Messages
1,554 (0.42/day)
Likes
340
Location
Annapolis, MD
System Name n.audBl
Processor E8500 @ 3.80GHz
Motherboard ASUS Striker Extreme
Cooling Full liquid (everything except power supply)
Memory 4Gb OCZ DDR2 PC9600
Video Card(s) Dual EVGA GTX 280 SSC Edition
Storage Dual WD Raptor in RAID 0 (300Gb), Dual WD 1Tb Cavair in RAID 1
Display(s) Dell 2407 24" HD+ Widescreen
Case Theraltake Tai-Chi
Audio Device(s) X-Fi Fata1ty (bleh!)
Power Supply Ultra X3 1000W
Software Win 7 64bit
#21
Look at it this way, some fans move a lot of air via velocity. They do a great job of creating a "slipstream", so to speak, of air and as long as there are no significant obstacles in the area immediately before and after the fan assembly then the slipstream continues to move at a nice steady fashion. The air moves at high velocity and the fan blades are designed to take full advantage of the steady high speed stream of air. But if you put any obstacles near these fans to disrupt the slipstream then their performance begins to suffer.

Other fans work off a high pressure concept. Think of them more as "high torque" fans. The fan blades are designed to grab a wad of air and ram it through regardless of any disruption in the flow. These are considered high "static pressure" fans.

It is a lot like the ol' power vs. torque debates. High power moves fast but stalls easy, torque doesn't stall but caps out quick once it gets moving.

Now... go back and re-read the last few posts, re-read this post... and ask yourself "Hmm, I wonder why Scythe named that model 'Slipstream'?" Shit makes sense, don't it!
 
Joined
Nov 22, 2007
Messages
1,554 (0.42/day)
Likes
340
Location
Annapolis, MD
System Name n.audBl
Processor E8500 @ 3.80GHz
Motherboard ASUS Striker Extreme
Cooling Full liquid (everything except power supply)
Memory 4Gb OCZ DDR2 PC9600
Video Card(s) Dual EVGA GTX 280 SSC Edition
Storage Dual WD Raptor in RAID 0 (300Gb), Dual WD 1Tb Cavair in RAID 1
Display(s) Dell 2407 24" HD+ Widescreen
Case Theraltake Tai-Chi
Audio Device(s) X-Fi Fata1ty (bleh!)
Power Supply Ultra X3 1000W
Software Win 7 64bit
#22
to me appearance matters quite a bit and the Slipstream fans just "Look" really cool. For that aspect the makers did a great job with them.
Hi Mark, haven't chatted with ya in a while.

I've been avoiding the build log section since I'm being lazy and not making any progress on the Soprano build. lol
 
Joined
Nov 13, 2007
Messages
6,137 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#23
you guys are icrazy... it will work just fine, and better than air. How do i know? they came out with a Uber OC'd watercooled 295 that got WAY lower temps than air and had a crappy coolit 120 built on to it, they have done the same with a 4870x2.

any decent 120 will cool dual gfx cards better than air, especially stock air...

now is it better to get an aftermarket air cooler? yes. because it is cheaper, and they are quiet as well, and honestly, unless you volt mod, you really dont get much out of watercooling the gfx. and even if you do voltmod, the 30% performance that you might get out of it is not worth the cost.
 

Wile E

Power User
Joined
Oct 1, 2006
Messages
24,318 (5.95/day)
Likes
3,682
System Name The ClusterF**k
Processor 980X @ 4Ghz
Motherboard Gigabyte GA-EX58-UD5 BIOS F12
Cooling MCR-320, DDC-1 pump w/Bitspower res top (1/2" fittings), Koolance CPU-360
Memory 3x2GB Mushkin Redlines 1600Mhz 6-8-6-24 1T
Video Card(s) Evga GTX 580
Storage Corsair Neutron GTX 240GB, 2xSeagate 320GB RAID0; 2xSeagate 3TB; 2xSamsung 2TB; Samsung 1.5TB
Display(s) HP LP2475w 24" 1920x1200 IPS
Case Technofront Bench Station
Audio Device(s) Auzentech X-Fi Forte into Onkyo SR606 and Polk TSi200's + RM6750
Power Supply ENERMAX Galaxy EVO EGX1250EWT 1250W
Software Win7 Ultimate N x64, OSX 10.8.4
#24
you guys are icrazy... it will work just fine, and better than air. How do i know? they came out with a Uber OC'd watercooled 295 that got WAY lower temps than air and had a crappy coolit 120 built on to it, they have done the same with a 4870x2.

any decent 120 will cool dual gfx cards better than air, especially stock air...

now is it better to get an aftermarket air cooler? yes. because it is cheaper, and they are quiet as well, and honestly, unless you volt mod, you really dont get much out of watercooling the gfx. and even if you do voltmod, the 30% performance that you might get out of it is not worth the cost.
30% is worth the silence to many people. With something like a triple rad, he can use low speed, very silent fans, get better temps than ANY air, and still be more quiet than said air coolers.
 
Joined
Sep 25, 2006
Messages
2,312 (0.56/day)
Likes
670
Location
Norn Iron
Processor Q9550 @3.8
Motherboard Asus Maximus Extreme
Cooling Custom water cooling
Memory 4GB Patriot Viper DDR3 1600MHz
Video Card(s) 2x HD4870 512MB
Storage 2x 500GB
Display(s) 3x LG L226WTQ 22" Widescreen LCD
Case Modded TJ07
Audio Device(s) On board
Power Supply PC P&C Silencer 750
Software Windows 7 Ultimate
#25
For me it would all depend if you have the parts already or not.

If you already have the RAD and blocks then give it a go.

If not then I would try and fit a double RAD into the case with quieter fans on it.