PDA

View Full Version : 2 pumps & rads for 1 loop?


BlkCamaro55
03-11-10, 06:03 AM
Just wondering if this is ok or if I should take another route? My CPU is at 4.5 GHz now and passes LinX but the temps are in the 90's which im not a fan of so I want to cool it down...So I was thinking of either adding another pump and 240 rad with my 240 now OR just get a 3x120 rad and just use 1 pump. Which should I go with? Or other alternatives? Thanks in advance

BlkCamaro

muddocktor
03-11-10, 08:00 AM
What are you presently using for pump, rad and wb? If you are using an MCP355 or MCP655 pump you will only need to add another rad to the loop as those pumps will be able to handle the little added restriction of another rad with no problems.

Grosjambon
03-11-10, 09:26 AM
I think someone underraded the heatload of those furnace :)
Go for a mcr 320 and temps will shutdown. (only 48$) Mcp 355/655 can handle 2rads. and a cpu loop with no problems. if something else (mcp350) u might need to buy a second one

BlkCamaro55
03-11-10, 02:52 PM
What are you presently using for pump, rad and wb? If you are using an MCP355 or MCP655 pump you will only need to add another rad to the loop as those pumps will be able to handle the little added restriction of another rad with no problems.


It is the MCP655 pump with the Swiftech Apogee GTZ wb and a hardware labs SR1 rad...what other rad should i get for a second one?

Grosjambon
03-11-10, 03:26 PM
mcr 320 best bang for the buck. 50$
Double the price u have the thermochill 10-15% and it is the less restrictive rad.

muddocktor
03-11-10, 04:53 PM
Grosjambon made some good suggestions, but I would say it more depends on where you plan to mount them. Since you say you are looking at a double fan sized additional rad, I will make my recommendations on that size.

Swiftech MCR220-QP - best bang/buck rad in double 120 fan sized rads, bar none.
Thermochill Pa120.2 - very good rad, cools better than MCR220, especially with lower cfm fans, but expensive (~$100). Also can be hard to find in stock.
XSPC RX240 - much like the PA120.2 in performance. Priced about midway between the MCR220 and PA120.2
Feser X-Changer dual 240 - Good rads, higher FPI needs med-high cfm fans to really make them shine. Priced similarly to the PA120.2. Hard to find in stock.
Hardware Labs BI SR1-240 - You already have one and know how well it's built.
Hardware Labs BI GTX-240 - Very good rad. Needs med-high cfm fans to really make it shine. Priced around the other high end double rads. Also hard to find in stock.

Boulard83
03-11-10, 08:12 PM
You dont need another pump with only the CPU on the loop. If you had tons of restriction 2 pump can help but not in this case.

+1 above for an MCR320 or any other good 3x120mm RAD.

BlkCamaro55
03-14-10, 05:54 PM
I have no idea where I am going to put this radiator at...I have been debating on it for a few days now and cant think of anything...The one I have now is hanging inside the case on the top...where else am I going to fit this thing? Ideas? Anyone know where I can see pics of radiators in the CM Haf932 that ARE NOT inside the top? Thanks!!!


BlkCamaro

Grosjambon
03-14-10, 06:01 PM
At the back of your case -
What radiator are u using atm? 120.1 or 120.2?
if 120.2 or 120.1 try to see if its fit at teh bottom (next to your PSU)
and put the new 120.3 up there

BlkCamaro55
03-14-10, 06:28 PM
At the back of your case -
What radiator are u using atm? 120.1 or 120.2?
if 120.2 or 120.1 try to see if its fit at teh bottom (next to your PSU)
and put the new 120.3 up there


This is in the HAF 932 right now


http://www.frozencpu.com/products/9431/ex-rad-162/Black_Ice_SR1_Low_Air_Flow_Optimized_-_240_Radiator_-_Black.html

QuietIce
03-15-10, 10:28 AM
You might be able to squeeze it in just behind the 5-1/4" and HDD bays but it would be tight and you'd have to get creative with the mounting.

The other option is hanging it off the rear case fan ...

BlkCamaro55
05-06-10, 11:08 AM
Ok so im resurrecting my post just to update and ask question again...

Well I have an EVGA 480FTW card now installed in the loop of my rig and I added a 120.3 rad along with having the 120.2...

Now my question is...the temps are still a little high for what im trying to do, so should I split the loop into two or should I get another pump for my one loop?

psionic98
05-06-10, 11:12 AM
the 480 pumps out the heat.. not sure 2 rads are even enough at this point.. adding more pumps wont get rid of heat, just move the hot water faster!

you might want to figure out if you can get a 3rd rad into the mix.. from my understanding it takes nearly 2x 120.2 to keep the i7 acceptable overclocked.. that 480 is a heat monger too..

obviously wait for someone more well versed in water loops, but i've read a ton and most i7 owners that oc are using 2 rads just to keep it cool..

Conumdrum
05-06-10, 11:17 AM
Split the loop, try the 120x3 on the GPU and the 120x2 on the CPU.

What rad/fans do you have now? And how are they setup on the case?

Pics would be good.

BlkCamaro55
05-06-10, 11:24 AM
the 480 pumps out the heat.. not sure 2 rads are even enough at this point.. adding more pumps wont get rid of heat, just move the hot water faster!

you might want to figure out if you can get a 3rd rad into the mix.. from my understanding it takes nearly 2x 120.2 to keep the i7 acceptable overclocked.. that 480 is a heat monger too..

obviously wait for someone more well versed in water loops, but i've read a ton and most i7 owners that oc are using 2 rads just to keep it cool..


I dont know that its the 480...it actually doesnt go over 50C full load with a 922/2230/1845 clock on it...its all the i7...im at 4.4GHz right now and im RIGHT at the 4.5 mark but the temps are getting way to high...

Split the loop, try the 120x3 on the GPU and the 120x2 on the CPU.

What rad/fans do you have now? And how are they setup on the case?

Pics would be good.


I was thinking about putting the i7 on the 120.3 and the GPU on the 120.2

The GPU sits at around 34C idle so I think im good there...ill get some pics posted in a few minutes...

Also, the fans on the rad are medium speed yate loons.

Pics in a minute...thanks for the replys...

BlkCamaro55
05-06-10, 11:28 AM
Heres a pic of the rig...this is BEFORE the 120.3 was installed where the 120.2 is in the pic...the 120.2 is on the back of the case...


GPU temps: 32-36C idle 50C full load

CPU temps: 44-47C idle 88-95 full load 4420.1MHz

http://i152.photobucket.com/albums/s164/SimC33/IMG_0914.jpg

Grosjambon
05-06-10, 11:47 AM
What kind of fans are u using.
U might need higher rpm ( higher flow ) or u can go push/pull which will help decrease temps. Otherwise u can buy one of the newest cpu block. (Supreme HF is the best on the market)
Google skineelabs and see the test about it.

BlkCamaro55
05-06-10, 01:38 PM
What kind of fans are u using.
U might need higher rpm ( higher flow ) or u can go push/pull which will help decrease temps. Otherwise u can buy one of the newest cpu block. (Supreme HF is the best on the market)
Google skineelabs and see the test about it.


Using medium speed yate loons...

hokiealumnus
05-06-10, 02:16 PM
What voltage are you at on your CPU? There comes a point (which you're probably surpassing) that even water can't cope with the heat your CPU is putting out. No matter what radiator setup, block, pumps, whatever you have it's not going to be enough. Have you considered single-stage sub-zero cooling?

EDIT - Just to be clear, it's not that the loop can't dissipate all of the heat, it's that the loop isn't capable of removing heat as fast as the CPU is capable of producing it.

BlkCamaro55
05-06-10, 08:23 PM
What voltage are you at on your CPU? There comes a point (which you're probably surpassing) that even water can't cope with the heat your CPU is putting out. No matter what radiator setup, block, pumps, whatever you have it's not going to be enough. Have you considered single-stage sub-zero cooling?

EDIT - Just to be clear, it's not that the loop can't dissipate all of the heat, it's that the loop isn't capable of removing heat as fast as the CPU is capable of producing it.


With an OC of 4.2 the voltage is 1.41

With an OC of 4.420 the voltage is 1.52


What kind of temp reduction do you think I'd see taking the GPU outta the loop and letting the i7 have the 120.3?

hokiealumnus
05-06-10, 08:31 PM
Slim to none TBH. Maybe a couple degrees. You just can't get reasonable temperatures when running an i7 at 1.5V, it's just not going to happen. Your loop is plenty capable of handling the heat load, but physical limitations of ambient cooling in general are making it impossible to remove it fast enough. Water does great things, unfortunately it's not able to work miracles I'm sorry to say.

If you have access to the classifieds, there is a relatively inexpensive single stage setup for sale that should keep up with your needs.

BlkCamaro55
05-06-10, 08:40 PM
Slim to none TBH. Maybe a couple degrees. You just can't get reasonable temperatures when running an i7 at 1.5V, it's just not going to happen. Your loop is plenty capable of handling the heat load, but physical limitations of ambient cooling in general are making it impossible to remove it fast enough. Water does great things, unfortunately it's not able to work miracles I'm sorry to say.

If you have access to the classifieds, there is a relatively inexpensive single stage setup for sale that should keep up with your needs.

Yea living in Louisiana doesn't exactly help my causes to OC'ing...can you link for me what your talking about in the classifieds?

hokiealumnus
05-06-10, 08:44 PM
I seem to recall we're not supposed to post those, so PM sent with classies link.

Conumdrum
05-06-10, 09:37 PM
I know what your problem is. You have no clamps of any sort on any of your barbs. J/K about the temps.

But you really really need to fix that.

What is a single stage cooler? It's a small industrial compressor coupled to a condenser (industrial rad) that is just like an air conditioner. Instead of having the freon or special gas/liquid "CHANGE PHASE" in the full rdiator like a window AC unit, the gas changes from a liquid to a gas right at the CPU block. A special made unit, not cheap and a science into it's own.

You can expect temps at ohh -80C on the CPU block. Loud, not cheap and uses lots of electricity.

You have reached the limit of Watercooling with massive overclocks. Your ready to move past a gas powered drag racer, you need to move to the next class. It's only 3 times as expensive for another 300 MHz.

Or look into dry ice (DICE) or Ln2.

Hope you got chip connections for the replacement your gonna need.

BlkCamaro55
05-06-10, 09:45 PM
I know what your problem is. You have no clamps of any sort on any of your barbs. J/K about the temps.

But you really really need to fix that.

What is a single stage cooler? It's a small industrial compressor coupled to a condenser (industrial rad) that is just like an air conditioner. Instead of having the freon or special gas/liquid "CHANGE PHASE" in the full rdiator like a window AC unit, the gas changes from a liquid to a gas right at the CPU block. A special made unit, not cheap and a science into it's own.

You can expect temps at ohh -80C on the CPU block. Loud, not cheap and uses lots of electricity.

You have reached the limit of Watercooling with massive overclocks. Your ready to move past a gas powered drag racer, you need to move to the next class. It's only 3 times as expensive for another 300 MHz.

Or look into dry ice (DICE) or Ln2.

Hope you got chip connections for the replacement your gonna need.


Lol there are clamps on the tubes now...That was a pic without water being in the tubes, I was just checking on lengths...

Yea I came to realization that Im being told by more than 5 to switch cooling techniques now...I guess until I make that jump Ill stay at 4.4 and be happy with the temps lol.

Conumdrum
05-06-10, 10:06 PM
What is wrong with 4.2? The gains you get for 4.4 are just silly small. You'll see no diff in performance. But your mosfets and CPU will thank you. Is a replacement mobo or CPU in your budget? Your at the bleeding edge of poof, smoke, ohh NOES! :cry:

BlkCamaro55
05-06-10, 10:13 PM
What is wrong with 4.2? The gains you get for 4.4 are just silly small. You'll see no diff in performance. But your mosfets and CPU will thank you. Is a replacement mobo or CPU in your budget? Your at the bleeding edge of poof, smoke, ohh NOES! :cry:

Well on the plus side...everything is under warranty haha...no I really just wanted to get to 4.5 for benchmarking and what not. I use my 4.4 for folding the -bigadv units which I need all the speed on my chip as I can get...