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View Full Version : Will a single 120.4 rad take cool this sufficiently?



003
08-07-2008, 03:36 PM
I am planning on replacing my PA120.3 with a 120.4 rad, likely the Feser X-480 or whatever it's called.

The loop would consist of:
-One Q9450 heavily overclocked (D-Tek Fuzion V2 w/ quad insert)

-Dual 4870X2s heavily overclocked and volt modded (full cover blocks for each)

-One X48 chipset overclocked (DD MPC-X38)

-One Iwaki RD-30 pump if I can get enough money for it, otherwise an MCP655
(possibly with the EK top)

-One Swiftech MCRES-Micro

Would a 120.4 radiator be able to sufficiently cool this, possibly with headroom to spare?

leo_bsb
08-07-2008, 07:20 PM
As Martin the master told: it can cool everything you want, all your hardware, it depends on what delta you consider good to run on your system and what kind of fans you consider ok to use.
With all the hardware you listed you can estimate the wattage and use martin's spreadsheets to see what deltas you will get.
All this hardware should dissipate around 600W to 800W on load. Just use this on the estimator and you will realize that it is not gonna get great performance, maybe barelly OK.

003
08-07-2008, 07:37 PM
Where do I get the estimator and how do I use it?

What if I kept my PA120.3 and used it in series with the 120.4? Obviously that would be more than enough by a long shot.

But what about something like a PA120.2 (or PA160) combined with the PA120.3?

Bobly
08-08-2008, 12:50 AM
The only way to know is to work out the approximate wattage being dumped into the system and work out the amount of heat that those rads are able to dissipate :/

leo_bsb
08-08-2008, 10:08 AM
Check Martin's website http://www.martinsliquidlab.com/ and his threads here on XS.

systemviper
08-08-2008, 10:21 AM
My guess is you will need 2 loops, one for the cpu and chipsets, second one for the 2- gpu's.
Since you keep saying heavily overclocked, I think that you would need low temps to get
good overclocks, and with all that gear, you will have low headpressure in a single loop and the
temps would be higher then you want to overclock heavily... just my 2c

also with all that overclocking and taking the heatpipes off the X48 I wouls suggest going with
water on the mosfits....

I just got my rampage yesterday and i just fitted it up with a whole set of the GOOD koolance waterblocks, looks pretty sexy too! :rolleyes:

nice setup :up:

003
08-08-2008, 10:28 AM
Argh... my head is spinning. If I just get another PA120.3 (or even an MCR320) and run it in series with my current PA120.3... that should be more than enough headroom, correct?

systemviper:
I will be using an Iwaki RD-30, and I have HR-09s on my mosfets :)

Monkeywoman
08-08-2008, 10:40 AM
one of these for the gfxcards, (http://www.petrastechshop.com/hwlablicegtx1.html) and one of these for cpu and chipset (http://www.petrastechshop.com/hwlablicegtx2.html) id say thats enough for cooling. price wise its high, but it would be higher if u went thermochill. from what ive herd they perform as well as the thermochill ones. my :2cents:

Bobly
08-08-2008, 11:24 AM
I would separate the CPU/NB/SB/Mosfets loop from the GFX loop simply because the GFX are made to perform under higher temperatures, that way you can keep a more acceptable sub 10 degree delta for the CPU while also having a delta of 10-15 which is acceptable for GPUs.

003
08-08-2008, 12:59 PM
Are you saying that if I have it all in one loop, and even if I have more than enough surface area of heat dissipation space on the rads, my temps will go up 10C if I use one loop instead of two?

You see, two loops means two RD-30s, which means two extra power supplies = aint gonna happen :)

Bobly
08-08-2008, 01:26 PM
Well if you split the loop into two, would you still need an RD-30? I'm just saying you're basically looking to water cool a whole computer, heavily overclocked which is going to be pumping out a hell of a lot of heat. Overclocked to 4Ghz with 1.5Vcore and 4 HD 4870 (I'm assuming that's fairly close to the heat being given off by dual 4870X2s) you're looking at about 700W of heat being dumped into your system. To effectively dissipate that much heat while keeping an acceptable delta for a CPU you would be looking at probably a triple PA120.3 configuration. However, if you gave the CPU and MB it's own PA120.3 and the GPUs their own 480 rad, you would probably be able to hit a sub 10 degree delta on your CPU while keeping a sub 20 degree delta on your GPUs ;)

003
08-08-2008, 02:48 PM
Triple PA120.3?!! Jesus! What if I simply keep my current PA120.3 and run it in series with a 120.4 radiator in a single loop with the RD-30?

I don't want the RD-30 just because of how good it is, but also because of the insane reliability.

EDIT:
Keep in mind, both 4870X2s will be volt modded and overclocked as high as possible.

EDIT2:
What if I keep my current PA120.3 and order two MCR320s to toss into the loop as well, for 120.9?

EDIT3:
Now I'm torn between adding two more 120.3s, or a single 120.4. Would a loop with a 120.3 and a 120.4 in series be enough to dissipate 700-850W of heat?