Water cooling the Asus Maximus SE X38

[Exahertz]

When you say "run my MOSFET block in parallel", do you mean totally seperate loop? I do think CPU> GPU> NB> Mosfets> SB> is allot to put in 1 loop? That would be 6 blocks correct? That may be a wee bit much for 1 loop, but this is my first time water cooling. We need a second opinion here...

well what i mean by parallel is:



Also note, I have two MCR320s so I should be able to dissipate around 800 watts of heat. Also I'm getting a second MCP655-b. I spoke with Martinm210 about how I should go about calculating flow in Martins flow estimator and I came to roughly 1.5 to 1.7 Gpm with the EK blocks.

heres a good quoat refering to the EK NB, SB and Mosfet blocks so you can punch it in to his estimator:

For the NB-SB-Mosfets, they will flow about like an MCW-30 each, you could probably substitute one MCW-60 for all 4 to be close. I need to make some extra slots for mosfets even though I don't have any tested.

[Talonman]

800 watts is a nice number to work with...

I see what you are talking about now...

I still will defer to more learned members for a quality answer.

[Exahertz]

Well typically a parallel config will cut the resistance in half. Although you also have to account for the restriction of the tees (it might be best to use a "Y" in these situations). There is a more unpredictable (dynamic) flow created here, i.e. the flow may prefer one path over the other thus un-equal flow between the two blocks. and turblance can degrade flow as well. it would be very mild, so little of a differance i dont care

[Talonman]

Well running twin blocks would have to minimize the difference in resistance. After I picked up on the fact that running 1/8" -VS- 1/2" line, will only move your CPU temp 1 or 2 C at the most, makes me think a tad difference in flow between your two MOSFET branches, performance difference would probably be immeasurable?

If your calculations are correct on your flow rate, and I think your RAD's thermal dissipation numbers are in the ball park, I see no problems.

To me decent flow, quality blocks, and lot's of RAD = Good Performance.

That has got to be the Big 3 to keep an eye on...

We can split hairs over favorite TIM, or Fans and such, but they seem like more minor factors. (Providing your using CFM rated fans designed to be used with your rad.)

I do want to add, our MOSFET chips are so small, I don't know if we can use a TIM on them....

[Exahertz]

Look at what i just found.



i forgot i had a backplate this whole time! it came with a bunch of parts that Duniek made me. its for a vaper phase change system i might build later, but for now its got a home

[Talonman]

Good find!! You going to put something between it and the mobo?

That is bare metal correct?

[Exahertz]

yea, sure is bare metal. i think some thin armaflex or 1/4" neoprene should work.

[Talonman]

That ed do er!

[Exahertz]

just picked them up from the post office. the blocks look very nice!

[Exahertz]

I do want to add, our MOSFET chips are so small, I don't know if we can use a TIM on them....

Wow those are small! Good thing EK sends their blocks with pads

[Talonman]

I used pads on my heat sinks that attach to my MOSFETS too.

I am watching for the Mail Man today, and hoping for the best!!

[Exahertz]

sorry about not posting pics yet. seems that my image host (Photobucket.com) is having some sort of server issues and i cant log in right now. i havnt started mounting the blocks yet anyways, so nothing real exciting to report yet.

any update as to ware your blocks are Talonman???

[Talonman]

Nope.. I still think I am OK though...

If you get squirley, give that 'New Improved' NB ring a good eyeballing.

You do realize you may have the first corrected sized ring in your hand...

Pictures of the ones that were a tad larger than optimum were posted earlier in this thread.

I think you have Eddies new adjusted one?

We have not seen one yet.

[Exahertz]

Nope.. I still think I am OK though...

If you get squirley, give that 'New Improved' NB ring a good eyeballing.

You do realize you may have the first corrected sized ring in your hand...

The ones that were a tad larger than optimum were posted earlier in this thread.

what exactly should i be looking for???

do you have dimensions? cuz i do have lots of precision measuring tools

[Talonman]

My recomendation is take the 4 screws out of your mobo if it is not in use, and the NB backplate will fall off. It has the 4 holes on it we need to line up with. You could lay the ring on top of the backplate to check the lineup.

[Talonman]

I used the NB backplate and a caliper to get as close as I can to spec.



Hope this helps.

Here ya go..

[Exahertz]

ahh, im using the comp as we speak!
oh well, im going to start lapping the MOSFET blocks now. I dont like the Fly Cut profile on them. plus ive got some 2 micron diamond lapping slurry ive been dieing to try out.

the NB and SB blocks are lapped from EK and look very flat and shiney

[Talonman]

Good news...

FYI - Look on page 11 for the pictures of the larger ring.

[Exahertz]

~53.31mm center to center (drawing = 53.6000)
~32.3mm center to center (drawing = 31.8800)

[Talonman]

That is pritty darn close correct?

I think you are golden!!

[Exahertz]

Okay, image hosting is back online!

heres the stock polish on the EK blocks:

Mosfets

you see a lot of marks from the Fly Cutting tool. IMO looks like they had the table speed up a little high.

North Bridge:

looks flat in the center, a little wavy near the edges

South Bridge:

Same as the north bridge. looks like the copper blocks are the same with a different hold down (top).

[Nate P.]

Mosfets don't look too good... But the NB and SB look hawt!!!!!!

[Exahertz]

Mosfets don't look too good... But the NB and SB look hawt!!!!!!

How about these mosfets:

[Nate P.]

The one on the left looks good, but it looks like the one on the right has some gouges in it...

[Exahertz]

The one on the left looks good, but it looks like the one on the right has some gouges in it...

lol, its a comparison of the before and after. im working on the other one as we speak.

the nice thing is im starting from:
1000 grit dry (10 min )
1500 grit dry (5 min )
2000 grit dry (5 min )
2000 grit w/ 2 micron diamond slurry (10 min)
hand polish with micro fiber cloth soaked in 2 micron diamond slurry (1 cigarette)