My water cooled GTX 280 story.

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Originally Posted by zeroibis

Personally I would try to do separate loops, this way there is no worry and best performance, especially for the cpu. If that is not an option, always consider having a bigger rad when ever heat dump is an issue. At the end of the day all the heat dump in the world should not matter if you have enough radiator capacity. Actually with those temps (in the burn) I would recommend more and bigger rads for your loop (assuming your pump is good). What is you coolant temp, I am a fan of water probes so you know how well the heatsink vs the loop is working to cool your system. Not to say those temps are bad, I am just a bit crazy about trying to keep things <60 but more importantly in the low 100's max.

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I have the Swiftech MCP-655 pump which should be plenty.

I am considering either adding a second radiator or I would really prefer to just purchase a better radiator like a PA 120.3.

I do not have a temperature probe currently but that is a good idea and I will invest in one.

I agree with the lower temps even if what I have is within hardware spec I always feel more comfortable with lower temps.

I was also considering using a flow rate indicator but I am afraid that this will have too much of an affect on my flow rate to justify adding the device to the system. But if you have any idea's on this it would be much appreciated.

I am running my GTX280 on its own loop with a EK Nickel block and GTX240 rad running with a Petras top modded Swifty MCP355 pump. Rad is remoted outside case and it works awesome. CPU has its own loop with a PA120.3 rad, Fuzion block and MCP655 pump.

I wanted to make an update boy's...

I found the program LinX which runs the IBM LINPACK Test I believe...
It is a CPU heat generating monster for sure, and a stability checker all in one.

It didn't like my 3.8GHz setting, even though Prime and OCCT passed fine.

I set my FSB back to 414 to give me 3.7265GHz, as reported from cpu-z.

I lowered my BIOS CPU voltage to see the lowest that 3.7GHz could run LinX successfully.

BIOS voltage 1.48125v failed in Prime given 25 minutes.
BIOS voltage 1.48750v failed in Prime given 43 minutes.
BIOS voltage 1.49375v passed Prime and OCCT, but would not run a LINPACK Test error free.
BIOS voltage 1.50000v, or 1.48v in Everest runs everything I throw at it including LinX. :up:

With me running at 3.7GHz, and lowering my core voltage down from 1.53750v in the BIOS to 1.50000v, my GPU idle temp reads 37C.
I consider this good given the CPU load that is on the system.

I think the entire temp of my loop likes the lower CPU voltage? :)

63C was the highest temp any CPU core hit during this test...

http://img301.imageshack.us/img301/4374/linxnb9.jpg

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Originally Posted by Talonman

I wanted to make an update boy's...

I found the program LinX which runs the IBM LINPACK Test I believe...
It is a CPU heat generating monster for sure, and a stability checker all in one.

It didn't like my 3.8GHz setting, even though Prime and OCCT passed fine.

I set my FSB back to 414 to give me 3.7265GHz, as reported from cpu-z.

I lowered my BIOS CPU voltage to see the lowest that 3.7GHz could run LinX successfully.

BIOS voltage 1.48125v failed in Prime given 25 minutes.
BIOS voltage 1.48750v failed in Prime given 43 minutes.
BIOS voltage 1.49375v passed Prime and OCCT, but would not run a LINPACK Test error free.
BIOS voltage 1.50000v, or 1.48v in Everest runs everything I throw at it including LinX. :up:

With me running at 3.7GHz, and lowering my core voltage down from 1.53750v in the BIOS to 1.50000v, my GPU idle temp reads 37C.
I consider this good given the CPU load that is on the system.

I think the entire temp of my loop likes the lower CPU voltage? :)

63C was the highest temp any CPU core hit during this test...

http://img301.imageshack.us/img301/4374/linxnb9.jpg

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Those temps to me at least seem very good. I have almost the same configuration as you but cannot seem to get my temps down. And with only 1.45V in BIOS on CPU I can hit 70C with prime95 small fft. And the GPU can hit 57C.

Any ideas on what I can do to help lower the temps?

Also what do you use for your cooling fluid?

Distilled water, some UV die, and PT Nuke.

What block is in your CPU, and how big is your RAD?

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Originally Posted by Talonman

Distilled water, some UV die, and PT Nuke.

What block is in your CPU, and how big is your RAD?

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I am using the swiftech GTZ.

RAD is a swiftech MCR320

I am also currently using fluid XP, thankfully without any gunk buildup that I have heard stories about, but I am wondering if I should switch to something like you use if it would give me better temps.

I am also planning on upgrading to a core i7 920 system very soon. Actually I'm just waiting on the new EVGA classified mobo to be released.

Now I know the core i7's dump more heat and im concerned from my tempatures currently that the current radiator will not be enough.

I have two ideas for what to do with another radiator.

1st: grab a second MCR320 radiator and mount it under my current radiator on the top of the case with 3 additional fans.
What I would do also is have the hotter liquid go to the top most radiator first and then to the second one, but I do not think this will work to well as heat from one radiator is still going across the other.

2nd: I could add a 120.1 radiator mounted inside the case on the back pushing air through the back and out of the case. The problem with this is the back fan on my case is a 160mm I believe, so it might be more difficult to mount.

One thing I do not want to do though is add a second loop. Adding to my current loop is fine just don't want a second one.

Also I would like to keep all WC components inside the case.

If anyone else has any other ideas please post them. Thanks

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Originally Posted by raidflex

I am also planning on upgrading to a core i7 920 system very soon. Actually I'm just waiting on the new EVGA classified mobo to be released.

Now I know the core i7's dump more heat and im concerned from my tempatures currently that the current radiator will not be enough.

I have two ideas for what to do with another radiator.

1st: grab a second MCR320 radiator and mount it under my current radiator on the top of the case with 3 additional fans.
What I would do also is have the hotter liquid go to the top most radiator first and then to the second one, but I do not think this will work to well as heat from one radiator is still going across the other.

2nd: I could add a 120.1 radiator mounted inside the case on the back pushing air through the back and out of the case. The problem with this is the back fan on my case is a 160mm I believe, so it might be more difficult to mount.

One thing I do not want to do though is add a second loop. Adding to my current loop is fine just don't want a second one.

Also I would like to keep all WC components inside the case.

If anyone else has any other ideas please post them. Thanks

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You'll probably get a better response by opening your own thread rather than hijacking someone else's.

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Originally Posted by warriorpoet

You'll probably get a better response by opening your own thread rather than hijacking someone else's.

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I am not trying to "highjack" someone else's thread. I posted here because the OP has a very similar setup as I do.

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Originally Posted by raidflex

I am not trying to "highjack" someone else's thread. I posted here because the OP has a very similar setup as I do.

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Not bringin' the hostility, bro, just trying to get you some high quality responses.

Peace :)

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Originally Posted by warriorpoet

Not bringin' the hostility, bro, just trying to get you some high quality responses.

Peace :)

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Its alright I will open up a new thread.

nice thread will add some 280 details later

http://img10.imageshack.us/img10/3718/gpu.th.jpg

No mem OC yet... shaders holding back core, VRM temps holding back shaders. notice the voltage this was achieved at.

Here is another run I did last night with my GTX280 on its own loop at 795/1272/1660. http://service.futuremark.com/compare?3dm06=10082128

Ok it looks like my eVGA GTX280 SSC is quite good under water. After some preliminary testing, it seems that 783/1674/2484 is the best absolutely 100% stable OC I can achieve, and with only 1.1625 vcore! Stock vcore is 1.1875. This is stable for 4200+ seconds on FurMark 1.6.5 @ 1024x768 with Xtreme Burn mode enabled, 0xMSAA and no post processing. Lack of voltage is holding me back from increasing the shader and core clocks, and VRM temps are holding me back from increasing voltage. If I had a FC block & dedicated loop, I think I would be looking at an 800/1700+ 24/7 FurMark stable card here! Here's the screenshot:
http://img529.imageshack.us/img529/3718/gpu.th.jpg

I can run the core at 792MHz relativly stable, but it would occasionally cause an artifact in FurMark. Only very seldomly, though. I am very anal and like my stuff to be 100% stable. If I could run STOCK vcore here, I have no doubt 792MHz and up would be stable with relative ease. Again, VRM temps are the limiting factor here. Take a look at the screenshot :eek:

Edit:
Note that I have not tested any higher memory speed. I just set it at stock 285 speed and left it alone. It may be stable at higher clocks, I might get around to testing that at some point.

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Originally Posted by 003

I can run the core at 792MHz relativly stable, but it would occasionally cause an artifact in FurMark. Only very seldomly, though. I am very anal and like my stuff to be 100% stable. If I could run STOCK vcore here, I have no doubt 792MHz and up would be stable with relative ease. Again, VRM temps are the limiting factor here. Take a look at the screenshot :eek:

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Thanks for all the info. Do you know how hot the VRM can get before it's too much? I have the same situation with one of my cards, the VRM's are around 130C during furmark burn test.

Yes, thanks for the info 003. :)

FYI - Our data base of Vantage scores for single 280's..
http://www.evga.com/forums/tm.asp?m=...55983;�

Dual 280's...
http://www.evga.com/forums/tm.asp?m=...55987;�

and TRI-SLI 280's is growing.
http://www.evga.com/forums/tm.asp?m=...ey=&#100483965

I hope to make 1 master list, after a huge swath of data is collected, so we can say that: X processor, running at Y speed, with this GPU clocked about ZZZ fast, should produce you about a PXXXX score in Vantage, run at the default settings.

PhysX enabled... The way us Nvidia boy's run! :p:

I want to color code them on the merge, to let people see where each GPU falls in the great Vantage scheme of things...
A look at the master plan:
http://www.evga.com/forums/tm.asp?m=...55987;�

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Originally Posted by Talonman

Yes, thanks for the info 003. :)

FYI - Our data base of Vantage scores for single 280's..
http://www.evga.com/forums/tm.asp?m=...55983;�

Dual 280's...
http://www.evga.com/forums/tm.asp?m=...55987;�

and TRI-SLI 280's is growing.
http://www.evga.com/forums/tm.asp?m=...&mpage=1&key=?

I hope to make 1 master list, after a huge swath of data is collected, so we can say that: X processor, running at Y speed, with this GPU clocked about ZZZ fast, should produce you about a PXXXX score in Vantage, run at the default settings.

PhysX enabled... The way us Nvidia boy's run! :p:

I want to color code them on the merge, to let people see where each GPU falls in the great Vantage scheme of things...
A look at the master plan:
http://www.evga.com/forums/tm.asp?m=...55987;�

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thats lovely..do non evga get to post their scores? >.<

since its a evga forum..so i thot i would ask first..

great effort to maintain such a list...helps ppl to get a better idea of wat score they are expecting..

Thanks.

I would say you ned to be an EVGA member to post... :)

I believe the boy's would want to see you post an entry in that actual thread.

If I were to start bringing scores in from other places, I am not sure how it would be received. :D

It is a fun board.

Quote:

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Originally Posted by Talonman

Thanks.

I would say you ned to be an EVGA member to post... :)

I believe the boy's would want to see you post an entry in that actual thread.

If I were to start bringing scores in from other places, I am not sure how it would be received. :D

It is a fun board.

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hee..yup..

i juz joined that forum and posted in ur single thread..:)

just a suggestion bro..issit possible to list the gpu score too?

Thanks!! :p:

I don't want to change the chart now... Gasp! :)

But all links are listed with each post, so the entries that you like more detail on, when their link is clicked, takes you to that neet compare screen, putting your system next to theirs.

I do enjoy that screen, when clicking on the Big Dog links.

I just wanted to state that personally I would call something 100% stable if it passed a min of 3 benchmark apps without problems. I for example noticed that when I ran furmark at high speeds I had no issue but then 3DM06 gave me issues. If you plan to use anything day to day or really want to know if something is 100% stable I would recommend testing with a variety of apps possibly at room temps 5F above average to simulate summer conditions.

Hey people I got another one I ran about an hour ago. Core was at 805, no vmod or voltage tuner. :D http://service.futuremark.com/compare?3dm06=10200945

was playing with my friends 280 gtx evga h20 edition here are the results so far 100% stable now to play with voltage !!!!

http://img.photobucket.com/albums/v1...tuff/test1.jpg

Very nice!