View Full Version : Single 120mm RAD sufficient for 9800GX2?
Cptn Vortex
05-12-2008, 09:53 AM
I just re-did my loop, and kinda want to leave it be for a while.... But I just got a 9800GX2, and it is one hot sucker. Thinking of getting an EK block for it, and I have a D-tek DB-1 pump, Swiftech 120mm RAD and all the other parts. Is this enough to cool the GX2 adequetly?
DarthBeavis
05-12-2008, 09:57 AM
No . . .too much heat.
sirheck
05-12-2008, 10:05 AM
I agree. Go for a dual radiator at least.
Cptn Vortex
05-12-2008, 10:25 AM
Hmm... I dont have any more space..... Craps. Already have a 220 up top and a PA120.2 on a radbox..... I only have room for the single 120 RAD. Dont make me drain and fill my loop again! Blast!
Big_Daddy
05-12-2008, 10:36 AM
Uhm. You might want to list your loops. I know you said you don't want to redo your loop, but I agree. Too much for a single 120mm rad.
NaeKuh
05-12-2008, 10:58 AM
doesnt matter.
The 120 with good fans will pull temps near air @ a quieter setting. Well the HR-03 could probably match it.
But your system will be scalable by upgrading the radiator.
however i would really recomend a PA160 instead. That should keep up with the cards.
Cptn Vortex
05-12-2008, 11:25 AM
Hmmm...... HR03..... you think I could fit two of them on the 9800GX2? Top one going up, bottom one down? That could be interesting....
jadeskye
05-12-2008, 11:58 AM
you could always try using two single rads in a series. that would be easier to fit in your case then a 240mm rad.
Hmmm...... HR03..... you think I could fit two of them on the 9800GX2? Top one going up, bottom one down? That could be interesting....
Hey now thats an idea!! I'm sure it would fit. That'd be a manly GX2!! :up: :D
b@llz0r
05-12-2008, 12:22 PM
I dont know how much heat a GX2 puts out but my alphacool nexXxos Xtreme 120 keeps my 2 OCd 8800 ultras at 50-60 under load at about 25 ambient.
not great temps, but it beats stock cooling (75-85C)
im in the process of upgrading to a 480GTX
depends what you are happy with and what u can fit
DarthBeavis
05-12-2008, 12:25 PM
you will not get the answers you seek here, head over to the SLI forums ;) just joking
Cptn Vortex
05-12-2008, 12:29 PM
Hmmm.... I might be able to make room for a 2nd 120MM RAD. Smart thinking.... Duh hahaha
NaeKuh
05-12-2008, 01:10 PM
Hmmm...... HR03..... you think I could fit two of them on the 9800GX2? Top one going up, bottom one down? That could be interesting....
errr i ment a compariable solution.
If you could fit it lol.
i was looking at wattage / performance comparison.
A single 120 radiator with medium will get near a HR-03 with a crappy pump and the MCW60. In SLI config on 8800 GT. :T
Ive tried it b4. :T
[XC] NetburstXE
05-12-2008, 02:02 PM
A 160.1 or 120x2 rad/two 120mm rads are the least you could get away with.
71 (Bryan)
05-12-2008, 02:18 PM
i thik you should add it to one of your loop while also adding the 120 rad in the same loop right before the gv2
Cptn Vortex
05-12-2008, 02:35 PM
SKYMTL is going to look and see if the mounting points are compatible with the HR-03 GT or Plus, and if so, I am going to attempt to get 2 of them in there, and keep the stock fan so that it cools the RAM and such.....should be interesting to say the least.
NaeKuh
05-12-2008, 02:39 PM
SKYMTL is going to look and see if the mounting points are compatible with the HR-03 GT or Plus, and if so, I am going to attempt to get 2 of them in there, and keep the stock fan so that it cools the RAM and such.....should be interesting to say the least.
O M G..
your seriously taking my error and trying it out? :rofl: :up:
Cptn Vortex
05-12-2008, 03:10 PM
Heck, why not!! I think it would look pretty cool
Heck, why not!! I think it would look pretty cool
yea man!!! If I had the $$$'s to do that, I would!
In fact, I just ordered a HR-03 GT for my 8800GT... :rolleyes:
No1451
05-12-2008, 07:38 PM
Cptn, your rig has the kaze bay thing does it not? Could you not run another 120 rad in there? Assuming this is the TJ09 rig of yours.
F1ZZY
05-12-2008, 10:56 PM
I dont know how much heat a GX2 puts out but my alphacool nexXxos Xtreme 120 keeps my 2 OCd 8800 ultras at 50-60 under load at about 25 ambient.
not great temps, but it beats stock cooling (75-85C)
im in the process of upgrading to a 480GTX
depends what you are happy with and what u can fit
^^This post is the best advice IMO.
Unless voltmodding, it doesn't really matter whether your GPU is 50, 60, 70 or 80 degC really. Overclock is not affected much by heat usually. You will be volt limited usually.
The main reason to go water on them is just to get quieter. Once that is done lower temps are just for willy waving.
As the radiator gets hotter it will be able to dissipate more heat. OK water temps might be like 20 degress over ambient or so, but hey!
Try it on a single 120 first if it's easier. It might not be much cooler than stock, but does that really matter?
You can always add a further 120 rad or play with combining to other loops later.
b@llz0r
05-13-2008, 05:02 AM
Unless voltmodding, it doesn't really matter whether your GPU is 50, 60, 70 or 80 degC really. Overclock is not affected much by heat usually.
TY Fizzy,
The reason I watercooled my 8800 ultras is because my system would freeze when the temps went above the 90 mark... TF2 @ 3840x1024 tends to stress the cards :D
Cptn Vortex
05-13-2008, 08:40 AM
Cptn, your rig has the kaze bay thing does it not? Could you not run another 120 rad in there? Assuming this is the TJ09 rig of yours.
Yes, but I am not sure if I have the space. I will take a look when I get a chance to open this sucker up again.
Cupcake
05-13-2008, 09:36 AM
I have a single GTX rad with an 88cfm fan cooling my 8800GTX and the water runs ~ 10c over ambient with full GPU load.
you could use a single GTX rad but your temps would probably be around 55c
NaeKuh
05-13-2008, 10:04 AM
I have a single GTX rad with an 88cfm fan cooling my 8800GTX and the water runs ~ 10c over ambient with full GPU load.
you could use a single GTX rad but your temps would probably be around 55c
he's running a GX2, which is like a SLI rig.
Quite a bit more heat then your solo GTX.
Cptn Vortex
05-13-2008, 10:04 AM
Right now I am hitting 85 degrees load with the stock cooler, and it is dumping a lot of heat into my CPU loop. It also gets quite loud. Heck if I can get below 60 load I will be quite happy. The RAD I already have is a MCR120, which is a pretty capable rad. I think I might give it a shot. Worst case, I get a 2nd rad, I have about 3 spots I think I could stick it. Thanks guys.
Cptn Vortex
05-16-2008, 10:47 PM
I would like to post my results. With a single MCR120, DB-1 pump and blue LED Yateloon running at about 1600RPM, I am getting idle temps of 38, and load of 48. Ambient is about 23 here. I have stressed for about an hour with ATI-tool and 3DMark06. HAPPPPPYYY!!!!
Cptn Vortex
05-17-2008, 11:42 AM
Bump, for all that didnt think a single 120mm rad would cut it. It is MORE than enough.
Snyxxx
05-17-2008, 01:04 PM
I applaud you. I find that there are many opinions on what size radiator is required.
I have learned to just try what is on your mind and you might be surprised by the results.
F1ZZY
05-17-2008, 09:36 PM
WOW, amazing result. You could even run a slower/quieter fan and still have respectable temps.
Cptn Vortex
05-17-2008, 09:57 PM
Yes, I did some testing, and I ran my Yate at the lowest I could, about 1000RPM, and it had no effect on the temps at all. I am currently at a LAN right now, and it is at least 25 degrees in here, I am sweating. Just finished some Crysis, and a whole lot of TF2, and max reported temp is 51. Obviously a single 120mm rad is still quite powerful. It could probably handle a OC'd Quadcore!
aspire.comptech
05-17-2008, 10:04 PM
PSHH 25C/77F is not that hot.
This last week it's been pretty hot around here and we had highs in the mid 90's
And living in a house without A/C and with a veritable space heater in my room, temps have hit around 30C
Cptn Vortex
05-17-2008, 10:39 PM
Yipes! Yeah we are weak up north when it comes to heat. Cold on the other hand, well we dont complain.
b@llz0r
05-17-2008, 11:16 PM
Great result vortex!
Scarlet Infidel
05-18-2008, 02:28 AM
I was reading this post from the start and wasn't happy with the opinion that a single rad would never be enough. I don't know why people think you need such high end kit sometimes. I'm pleased with your results.
Lets say the card dumps a bit over 100w into the water fully loaded. 0.1 c/w for the rad gives water temps of around 33c. Then, 0.1c/w for the thermal resistance of the waterblock (and thermal paste) gives processor surface temps of around 43c. Internal core temps could easily be 48c. (These are very wild estimations, don't be too pedantic, just showing how its not unreasonable to get those temps).
I reckon a dual radiator would take about 5c off those temperatures.