Mugen 2, and Asrock z68 pro3-M

[Sirianstar]

Hi,

i ordered these 2 items, and i'm waiting them to arrive at my home for this weekend,
i need to know if they are compatible, i thought they were, but now
i'm having some doubts.
i used photoshop to scale the exact images for them,
and i think they should fit, the only problem i think could
be the fan clips touching the vga on the back (msi 560ti twinfrozrII)

what do u counsel me? changing the dissipator with another
model or doing some tricks for insulating the clips?

ASRock > Products > Z68 Pro3-M

is the mugen mountable rotated by 90°? i could gain 5 more millimeters
of distance with the vga,
but the fan fins should go over the ram slots (i got 2x4gbgskill sniper low profile 1,25 volt, height 42mm) i could always use the 2 outer slots...

please give me some hope

[Oli]

Mugen should never touch the VGA card's rear side. Otherwise the manufacturer would have placed the PCIe x16 slot or the socket completely wrong.

Depending on the RAM's heatspreaders it coul be necessary to mount the fan on the other side of Mugen (pulling instead of pushing). If your mem is really low profile the fins and the fan will easily hang above the modules which is perfectly ok.

You could use the outer RAM slots but this leads to memory not running in Dual Channel mode.

And yes on Socket 1155 you can rotate the Mugen in any direction AFAIR. But the wide side parallel to the ATX i/o shield is the best direction for most setups.

Please do NOT push your posts. Thanks.

[Sirianstar]

thanks for the answer Oli, i am having some problems with the forum viewing/posting and that was a try to see if my account was working well.

i have some other doubts:
if i mount the Mugen as you counseled (standard position) , and IF i put the 2nd scythe slip stream pwm i ordered to have a twin in a config Push-Push with an Y 4 pin cable, would i benefit to block with some hard paper the airflow from going toward the Vga and ducting it all toward UP (there will be a Coolermaster Megaflow 200mm sucking all the air up, case haf 912) ?

[Oli]

A long time ago i made some experiments with fan ducts and also closing the sides of the cooler and using push & pull to generate a directed airflow through the fins. The results were not as good as expected.

The basic principle of push & pull leads to a quite proper aiflow w/o adding a duct construction. I'd personally only use the push & pull w/o further constrcutions. I've been using push & pull with absolute low rpm fan setup an Mugen 1 for years now and i am quite satisfied with it. I'd expect a 1-2 degrees gain when adding a duct.

[Sirianstar]

i made a chart to explain what i thought.
my fear is that with this config the vga would suffer
from unwanted hot hair without a protection.

My Aim is to let the cpu get fresh air from the back as
the front megaflow is too much distant,
while the other megaflow is quite very near, so it will help a lot
better than the 120mm cooler master at pulling out hot air
from the cpu...

Also i'd expect to OC to 4.5 Ghz or something less.

the other solution could be putting them in push-pull toward
the back 120mm cooler master...

[Oli]

Sorry but i - personally - would not prefer this setup with to fans pushing into Mugen. I like rather "classic" airflows. Front bottom in, rear high position out. Or high position front in (5.25" cages with mesh & fan) and direct horizontal way through the whole case including cpu cooler.

So if you think about what you proposed you can just make your own experiences - make a test setup, try different airflow concepts, note down the temps in idle and under load and then decide what is the best for your case / cooler / fan / rpm setup.

This is a real science and i don't want to go into detail more than i did. Just as small remark: instead of being afraid of your GPU getting too much hot airflow from the CPU in our days I would even more think about the hot (and not cooled!) rearside of the GPU sending hot air (upwards!) which heats up the air that gets to the CPU.

Anyway I know that is fun th think about different concepts but depending on your wishes concerning noise etc. you should test it on your own rig.

[Sirianstar]

OK,
i installed everything,
Mugen is hard as hell to assemble on the motherboard,
too heavy and the screws are really difficult to mount due
to the weithg of the dissipator.
Installing fans when the mugen is already mounted is
also ridiculously difficult, i had to use a string to pull
the fan clips and reach the fan chassis holes.

apart those mounting considerations,

MUGEN 2 fits the asrock z68 pro3-M,
it has about 3-4 mm of space between the fins and the back
of the vga. I did put a piece of hard paper to insulate
from eventual oscillations of both the vga or the dissipator.

I did apply the second fan as in the chart provided above,
no positive results has been found, no difference between it and a
single fan. it seems strange as the air flow is doubled,
but from raw data acquired i didnt have any benefits.

i will do some more tests, as the 2 tests have been done in 2 different
days, so a difference of 1-2 degrees in my room could be due
to the apparent non different results.

temperatures seem too high for me:
53 max temp on lynx with full 100% load, with normal auto boost of i5 (@3400 all processors)
68 max temp on lynx with full 100% load, with i5@4400


idle temps:
36° degrees on normal auto boost (with power saving)
38° degrees @4400 with power saving.

maybe i did some errors on the mounting?

i did use Arctic Cooling MX-4 paste, and room temperature is 26°


EDIT: Did some more tests:

cleaned dissy and cpu, reapplied paste.
switched the fans to a normal push pull configuration.
switched the back fan of the case to pull configuration.

new stress temps:

54° with normal boost
70° with 4.4ghz boost.

something is really wrong.

EDIT 2: did another test, switched the upper Megaflow to push fresh air directly on cpu
same results:

70° with 4.4Ghz

i think i need some serious help:

i tried applying thermal paste by
finger + transparent film for kitchen,
and with a credit card.
both times i had those results.
i tried putting more paste, less paste,
nothing really changes, so i think i'm applying it
right or i'd have very different results.

[Sirianstar]

i wonder why i didn't get any answer...
are those temps good?