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How to improove wc temps

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  • Heatsinks
  • CPUs
  • Overclocking
Last response: in Overclocking
March 15, 2010 7:31:41 PM

hi guyz!!
how u doin?
i have some questions from you watercooling experts!!

now i am using 360 rad with 5 fans on it,
and currently cooling my cpu, nb and the gpu!
i have the swiftec mcp355 pump,
and my cpu temps with 4.0ghz HT on are 64-62-62-57
seems pretty high for watercooled set up

while my gpu temp with 1075/1280 1.350vcore
never reach 45c!
vrm's never reach 60c

i am pretty impressed with my gpu temps, disappointed with the cpu temp

i already change thermal compaound for 3 times so i have no problem with contact and fit with the block and cpu,


i was wondering if i get another 240 rad, should my temps get lower ?
can my pump handle this set up?


what should i do to improve my temps?


here is a pic of my rig, this pic is old, i am using the gigabyte x58a ud7, while this pic i have the rampage 2 extreme, same set up though





i appreciate any advice!
thanks


ohh before i forget, i own the intel i7 920

More about : improove temps

a b à CPUs
a c 86 K Overclocking
March 15, 2010 8:10:15 PM

Your temps are fine. Bit high but okay. You simply don't have enough rad to remove all the heat. The CPU will be hotter, it's more sensitive to heat.

You didn't mention ANYTHING if thats load on the CPU/GPU or just CPU or just GPU.

Run Prime 95 small ffts AND Furmark at the SAME TIME, let run 30 min, tell us your room temp and the resulant temps using HW monitor as your measuring proggy.

No idea what GPU you have or if you are using cool outside air, not case air to cool the rad.

Most would be running a 120x4 or two 120x2 rads for that setup.
March 15, 2010 8:13:45 PM

yeah your right, i haven't got enough money that time so i get the 360, tthose temps we're all in full load! both cpu and gpu!

ok i'll run now prime and furmark


btw i have the xfx 5870 vga!!


so u mean adding another rad will not improove temps?
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a b à CPUs
a c 128 K Overclocking
March 15, 2010 8:17:17 PM

Maybe your CPU waterblock isn't immense like mine :p 

When you installed your CPU block did you screw it down, then unscrew it and check to see if its making good contect with your CPU??

Can I haz your compression fittings please! :D 
March 15, 2010 8:35:51 PM

Rustyy117 said:
Maybe your CPU waterblock isn't immense like mine :p 

When you installed your CPU block did you screw it down, then unscrew it and check to see if its making good contect with your CPU??

Can I haz your compression fittings please! :D 


hahaha i've checked it man, many times!

buy your own man,, buy your own!
March 15, 2010 8:55:56 PM

my rad is located outside the case, and getting air obviously outside the case!

well my ambient temp here now is 21 or 22c
load temps for cpu 4.0ghz HT enabled 66-64-64-59 on real temp
63-61-61-55 on HWMONITOR!

GPU load temps, stock vcore and 900/1250 clock 44c!!




so adding 240 rad will be a nice idea?

my pump can handle it?
a b à CPUs
a c 86 K Overclocking
March 15, 2010 9:18:26 PM

You got a MCP355 pump? Does it have an aftermarket top like the XSPC top? If so, yes your pump can handle a 240 rad.

Good pump, but needs a bit more head pressure. What CPU block is that?
a b à CPUs
a c 86 K Overclocking
March 15, 2010 9:48:30 PM

Looks like your EU. Buy the XSPC 240RX RX RX, NOT RS series. Great rad, thick, low fpi, don't need HS fans to make it prform well.

Was hard to tell your setup in that crappy pic. And making a parts list when asking quiestions does help.

You should be able to put a 240mm on the top with modding some holes I'm sure.

Your CPU block, pump etc isn't bad, so all you need is more rad. Go 120x3 size if you can, you KNOW you'll need it someday.
a b à CPUs
a b K Overclocking
March 15, 2010 9:53:28 PM

Looking at the pic. It appears you have the following flow.
Radiator-Pump-Vga-NB-Cpu-and back to radiator
If so you are heating up the water with the video card before it gets to the cpu.

If you add another radiator place it as follows.
Rad-Pump-VGA-NB-Rad-cpu-Rad-and back to pump.
It will lower the cpu temp in this configuration.
a b à CPUs
a c 86 K Overclocking
March 15, 2010 10:02:12 PM

The difference in water temp anywhere in the loop is 1-2C. So in theory yes, but it really doesn't matter. Res before pump, then good hose routing next.
But yes, you can see small gains (less than 1C usually) by getting the coolest water to the CPU.
March 16, 2010 4:46:18 AM

rick yur wrong, my flow set up is
res-pump-ra-cpu-nb-gpu-res

i was thinking to have this set up when i got the other rad
res-pump-360rad-240rad-cpu-nb-gpu



i have the cm storm sniper, so 240 rad fitis inside my case!!

sorry about the pic, i made it with my iphone!!!

a b à CPUs
March 16, 2010 12:56:40 PM

Even with a vcore volt mod and 4.0 Ghz OC, I would expect to see lower temps. My i7 920 @ 4.5 Ghz barely breaks 45° at load with a 360 rad and six fans in push-pull (I only have a single 5870 in the loop, no OC). Same ambient temps too.

What CPU waterblock are you using?

What TIM are you using on that waterblock? Did you apply using a minimalist application method?

You have a good enough loop setup. Just make sure you don't have any impingement other than what is in your waterblocks.

The only other difference I can think of is that I am using an MCP655 pump.
March 16, 2010 2:11:17 PM

that would be a difference, and your tubing too!!
i have many doubts about that tube going the the rad, it goes too long and high!

you have a nice temps though!!
i applied the tiniest thermal
paste, using as5!!

if somebody tell
me about tubing set up that would be nice, to help my pump push enough water!!

a b à CPUs
March 16, 2010 6:08:23 PM

Tubing:
Tygon is best.

You want to avoid any tight bends or curves, even if it means your water loop will be a bit longer.

If you do have tight curves, you can reinforce the tubing with a coil sleeve, like the Swiftech Cool Sleeves product.

Personally, I use plastic binder coils that you can get at an office supply store. Cool sleeves are neat, but they are expensive and become very brittle as you expose them to sunlight.

One trick is to use 1/2" barbs and compression fittings, and get 7/16" ID tubing. Use a coffee mug filled with distilled water that you heat up in the microwave to warm the tube end and slide it over the barbs. Once it cools, you will have an extremely snug fit.
a b à CPUs
a c 128 K Overclocking
March 16, 2010 6:14:34 PM

Houndsteeth said:
Even with a vcore volt mod and 4.0 Ghz OC, I would expect to see lower temps. My i7 920 @ 4.5 Ghz barely breaks 45° at load with a 360 rad and six fans in push-pull (I only have a single 5870 in the loop, no OC). Same ambient temps too.

What CPU waterblock are you using?

What TIM are you using on that waterblock? Did you apply using a minimalist application method?

You have a good enough loop setup. Just make sure you don't have any impingement other than what is in your waterblocks.

The only other difference I can think of is that I am using an MCP655 pump.


4.5Ghz and 45C under load?!?!, is that prime95 load?

Got a screenie?

Mine breaks 50C at 4Ghz under OCCT with a 5850 in the loop @1000/1200

a b à CPUs
a c 86 K Overclocking
March 17, 2010 12:11:31 AM

Compare with ambient temps too. Makes a BIG diff.

Load programs and lenght of test matters too.
March 17, 2010 2:56:56 PM

i decided to get th xspc rad!

how do i mount the fan though?

get air outside the case or get in?

many liquid cooled pc (have seen many rigs from xtremesystems) used to get air inside the case!

is that a good idea or should it get air outside?

thankz