Push/Pull fans on a triple rad.

DavyBoy

DavyBoy

DavyBoy

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Hi guys,

I was wondering if someone here could tell me whether I would see much if any difference if I were to fit another 3 fans onto the other side of my rad.

I remember when I fitted the 2nd fan onto my TRUE, my temps dropped by a few degrees, which I thought was really good, but would I be likely to see a similar drop in temps by using push/pull fans on a radiator?

Thanks in advance
 
i got 6 redwings in push / pull on my pa120.3 temps are nice and cool idle 35 ish and load 66 ish. turn then up and down as needed.
sound is also nice and low. Oced to 4.2
 
Which fans and which radiator mate? If you're using low pressure fans (like the redwings) on a 30mm radiator then moving to push pull should make a considerable difference. If you're currently running three 3k 38mm fans on a 60mm radiator, not so much.

Interestingly the improvement from using shrouds is roughly the same as using push pull fans, are your fans directly attached to the radiator at the moment? Here's a very good article: Martin's lab
 
Sorry, I should have been more specific in the OP.

I'm currently using an Aqua Computer 360 rad, it's 45mm thick.

Fans that I am currently using is the Xigmatek XLF-F1253 1500rpm, attached directly to the rad, I would like to continue using these, as I really like them!!

However, in the new year, I plan to change my rad out for a thermochill PA120.4, and a 120.2, as I will be putting the mobo under water to, but that's a different story, all I really want to know is if I will see much if any benefits from fitting another 3 fans to my current rad..
 
In that case I believe the answer to be yes. 1500rpm fans will have relatively low static pressure so stacking them should be beneficial. I wouldn't like to estimate the temperature drop as a result though, £ per degree may be quite poor.

I don't know how those fans compare to gentle typhoons but I sympathise with not wanting to change. I'm very fond of s-flex despite others being 'better'.

What sort of temperatures are you getting now? Adding the motherboard to the loop (mips or ek I guess) wont add much heat but will add some resistance, what pump are you using now?

edit: there's a block for your ram too if you're really keen
 
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atm my idle temps are around 36c, and under load running LinX they don't really go much higher than 60c, this is with my chip at 4GHz, and my GTX280 is also in the same loop.

I'm currently using a Laing DDC 10w that I modded to run at 18w, but what I had intended on doing was having my GPu and CPU in one loop on the quad rad, and then use a the 120.2 rad and buy another DDC with XSPC restop and put my mobo on its own loop.

I haven't fully decided how I am going to go about this, as I need to have a good think about it all, but in the mean time, I will get another 3 fans and stick them onto my current rad, as I want to push my chip a little further, however as it stands atm, when I try running it at 4.2GHz my temps go right up to 70c, as I have to give Vcore and Vtt quite a bump to get 4.2GHz stable.

I guess a quad rad for just my GPU and CPU is probably overkill, but I have been thinking about picking up a 2nd hand GTX280 for SLi, and I imagine that 2 x 280's and an overclocked i920 is going to put out quite a bit of heat!!

As for watercooling my RAM, I don't think I'll go down that route, as my RAM doesn't really get that hot tbh, although I really do like the look of the MIPS RAM waterblock for the Dominators!!

That's another thing that I have been trying to decide between, is whether I should go for the EK UD5 blocks or the MIPS blocks, I really like the look of both kits, but atm, I am leaning more towards the MIPS ones..

Which kit do you prefer out of these Jon?
 
Mine sits at around 60 at 4ghz, about 65 when testing around 4.3. That's with a 240 and two 120s, three s-flex fans. A few thoughts on your plan, firstly that the motherboard doesn't need anything like a 240. If two loops you probably want the graphics card on the 240, everything else on the quad. It'll be fun testing to find out though.

An 18W ddc is ideal for a restrictive loop. Seems we're running almost exactly the same system. I'm planning on running a single loop with everything in, and adding a second ddc in series if I decide the flow rate is limiting. This makes sure no radiator capacity is wasted, and if a pump gives out the other remains so the components survive.

I like ek as a company, exchanged a few emails with them and they're good guys. Mips website is exclusively in German which I can't get anywhere with, and they only seem to be imported by companies I'm unwilling to deal with. However as far as manufacturing quality goes I suspect them to be equivalent, especially for motherboard blocks which ultimately aren't very complicated. Out of the two I'd probably buy from ek.

Do you have any old or broken 120mm fans kicking around? If so you can make shrouds for zero cost and fit them between radiator and fans to get a measurable temperature drop. Are the fans running at 12V?
 
Hi jon,

Like I said, I wasn't really sure how I was going to go about putting the mobo under water, I've only really started thinking how I am going to go about doing this.

You are probably right enough in that a 240 rad would be to much for just my mobo, so I will probably do as you have suggested, and have the GPU's on the 240 and everything else on the quad.

Regarding the mobo blocks, I really like both the EK and the MIPS blocks, but the reason that I am leaning more towards the MIPS ones is because of the placement of the ports.

One of the ports on the EK set looks like it would end up being awfully close to the top GPU, by the looks of things, in order to use a compression fitting in the port I'm referring to, you would need to use a 45 degree fitting, though without actually seeing the blocks I cant be sure.

Whereas with the MIPS blocks this isn't going to be an issue.

But at the same time, the price of the EK blocks is more appealing, as the MIPS set are really expensive!

My current fans are hooked up to my fan controller, and I usually have them running around 800 to 1000rpm.

Unfortunately I don't have any old/damaged 120mm fans lying around that I could use as shrouds. :(

Are you running your GPU and CPU in the same loop atm?
 
I don't think the ek ports interfere with the card, but it might be a close call. Especially if using particularly chunky fittings. I have vague memories of a thread on XS about this with useful photos, but it might be relating to a different board.

Fan controllers are such a good idea. I really should start using one, I currently just switch them off through software. Bit crude really. I didn't have any lying around either, bought five off MM for a tenner delivered and spent a few days cleaning them up with a hot Stanley knife. Thermochill sell some sheet metal ones which might be better though.

I've got three small radiators, cpu and gpu in the loop. In time it'll also have ram and motherboard, hopefully psu. Eventually I'm hoping to go multiple loops with thermoelectics, but until I have components that I want thermally isolated from each other I don't see the benefit to multiple loops. I'd feel differently if my graphics card was better, but as it's far too cool for a 120 radiator I don't see a benefit to isolating it.

edit: an exception is one reservoir, two pumps where one drives the cpu block only and the other drives everything else. I think that's quite cunning, but it's not really multiple loops.
 
There is also one pump, one res (Typhoon 3) and two 'parrallel' loops but that means a pump change (D5) so just offered for information and an alturnative option.
Xspc also do the duel pump res with isolated pump res's
 
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JonJ678 said:
edit: an exception is one reservoir, two pumps where one drives the cpu block only and the other drives everything else. I think that's quite cunning, but it's not really multiple loops.
Click to expand...
This was something else I was actually thinking about, I was looking into getting an EK multioption, and then splitting the tubing off using one of these Bitspower fittings, then routing the tubing off to both pumps that way, but I wasn't sure how well this would work out.

Like I said, there is still a lot of planning that I need to do first before I fully decide which route I'm going to go down, but I am sure with the help I get from you guys on here, I will find the best solution in the end!
 
I'd use a £4 one from thermochill instead of the £16 bitspower myself, but a similar idea. Particularly exciting is that you can buy the ek multioption and another end piece, so both ends have three holes in. Inlet and outlet for each loop, fill and drain. Brilliant really.

Jokester is doing exciting things with non-series loops at the moment, his build log is very much worth a look. Makes my efforts look clumsy and ill thought out, which is probably more inspirational than depressing :)
 
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