Pro/Forums

Pro/Forums (http://forums.procooling.com/vbb/index.php)
-   General Liquid/Water Cooling Discussion (http://forums.procooling.com/vbb/forumdisplay.php?f=9)
-   -   Why don't we see more people cooling their mosfets? (http://forums.procooling.com/vbb/showthread.php?t=8482)

Tempus 12-06-2003 02:26 PM

via??

The SK8N is a nvidia Nforce3 Pro 150 mbo =) The SK8V is the Via chipset.

Not that I dislike my via chipset ones. They've been good to me too.

I'll get a close up posted soon.

Heres the website image:

http://usa.asus.com/products/mb/sock.../overview.htm#

BladeRunner 12-06-2003 02:36 PM

No you misunderstood me....I was talking generally........ to use FX51 I need either nvidia (nforce 3) or via both or which I'm not fully happy with atm..... at least not to justify the upgrade costs ;)

This is especially so considering the NF7-S v2.0 is spiritually the closest I've come to anything that matches the BX chipset mobos (best of all time imo), never fully enjoy my time with various via mobos always some annoying issue that never get solved fully......

Tempus 12-06-2003 03:50 PM

ahh.. I gotcha now.

And, yes, I can see where you are coming from.

Personally, I liked my Abit VP6. I thought that was "the next BX" series with its dual procs for the masses and plenty of OCing options.

I'm not a big fan on the NF3 pro 150 my self. But its how it all happened so I'm not arguing. I do agree that there isn't an utterly compelling S940 board / chipset out there yet. I know its coming. They just need more sales #s to get there.

V12|V12 12-06-2003 07:42 PM

Blade,
Yeah sorry bout that, I was intox'd last night and misread the whole thing! Lol, yeah 0-zero airflow makes the heat sink very limited, I see what you meant now that I'm clear minded! WHen I first saw the layout of your cooling system, I was thinking, WHOA wtf, I've GOTTA see hi's Hcore...but you don't have one, even better, UNDERGROUND, I remember reading about that a long time ago, very, very nice... How did you make the rest of the components, you have your own mill? CNC? I wish I could find a cheapo manual (like Couple $100) at an auction, or else I'll never have one, they are just too pricey for my limited use of one, though I would start building all kinds of automotive/computer toys.... For now, i'm still hunting down a SMALL X-Y Table for my cheapo Drill press, with no luck, since it's a small 8" model..... Nice System :)

BladeRunner 12-07-2003 01:48 PM

I acknowledge that you are right, and my system is "different"

90% of the time a heatsink will do the job for most cooling tasks....... as long a there is some airflow........

My PC is in storage atm so I'm relegated to the humility of having to use a laptop :mad:

I did however use a "Normal Rad & Fan" :D for a while before moving, as I had to disconnect from the underground tank.......

I made all the water-blocks in the system & although I have a proper mill now, (its still an entry level model imo), you can get by with very basic tools if need be. Have a look a the build projects on my site as most were made with hand tools or a horrid drill press and x-y table.

A lot of it comes down to dedication and time, not my creation, but if you haven't seen this yet it shows just what can be done with limited tooling..... (pic is link and read my post in the thread)

http://personales.ya.com/cuasar/OC/H...Hydrae%201.jpg

rocketmanx 12-07-2003 09:49 PM

I saw that Hydrae as well bladerunner :drool:

That guy is a real craftsman, I envy his skills. That is a gorgeous piece of work. It's art as well science. Wish He'd sell some.

superart 12-07-2003 11:25 PM

What is that black coating inside of the block?

BladeRunner 12-08-2003 04:53 AM

superart

Click the pic as it's a link, and my last post there details how the main part was made with a drill press. the black coating you think you are seeing is just the channeling :)

superart 12-08-2003 08:50 AM

Yea, I read that, but just couldn't find anything about the coating.

Aperantly, its because there is no coating. Just a shadow. Thanks.

Tic 12-08-2003 10:45 AM

Hej guys. In know it is a little offtopic, but still :>
btw, sorry 4 my english ...

When I had stock (no) cooling on mosfets, i could run my AMDXP 1700+ @ 2.05V. Now i puted some heat sinks and one 80mm fan from zalman (can"t hear it on 7v) and i can run my AMD on 2.175 no prob. I get BSOD on 2.2V :cool:

It is worth to put something there. It assures stable voltages and higher too. I just wouldnt put H2O cooling there. There is no need. You can still have silent PC with one 80cm fan.

Tic

BladeRunner 12-08-2003 12:38 PM

Yeah that's what I meant the way the photo was taken makes it look black.

Lets not do this "silent fan" thing again, I've not yet come across a "silent fan", some 12db rated pabsts I got were far from silent even at 7v......... it more depends on how quiet your environment is to what you may perceive as "silent" ;)

Regardless it would also be a little silly having worked hard to get a completely fanless system to then put one in just to effectively cool a mobo powerfet sink :p

Ketchak 02-05-2004 06:04 PM

Quote:

Originally Posted by BladeRunner
superart

Click the pic as it's a link, and my last post there details how the main part was made with a drill press. the black coating you think you are seeing is just the channeling :)


The complete guide of Hydrae construction.

In spanish languaje but with many pics.


Ketchak.
www.devilmaster.org

Starman97 02-06-2004 02:39 PM

What I would do to cool the CPU VCORE supply(ies) is to mount a water cooled
plate on the backside of the motherboard. It's stealthy and will work nearly as well
as trying to make contact with all the devices and their various component heights.

The board maker puts a whole lot of copper in the power supply area to help dissipate
the heat from the FETs , inductors and caps. The back side of the board usually has few if
any components so you can make good contact over a large area. You might have to use a
conformal pad if there are some small surface mount caps there. Also will have to grind
down any protruding leads from inductors or electrolytics. But you only have to take out
10-20W over a 4 square inch area, so it's not like mounting to a bare CPU die as far as heat
transfer efficiency goes.

TerraMex 02-06-2004 02:52 PM

http://www.alphacool.de/upload/images/12307D.jpg
http://www.alphacool.de/upload/images/12311D.jpg

Some companies have already jumped on it.

Starman97 02-09-2004 11:16 PM

Quote:

Originally Posted by TerraMex

Those are nice little blocks, but they are only going to work on a specific
motherboard that has the FET's positioned in the same geometry as the
waterblock surfaces. From what I've seen, no two mobo's are alike in the CPU
power department. I'd still go for the large area back of the Mobo cooling idea.
I've picked up and looked at a lot of boards at Fry's, almost every one of them
is nice and flat on the back under the CPU power supply. Cap and inductor leads
and scattered 0603 sized caps are the only exceptions. So a nice silpad should
take up the gap and with enough area you should get 20W of heat transfer.
Even at 1Degc/W you are removing heat.

But this is all for a WC purist, gluing a small chunk of heatsink to each FET
and putting an 80mm fan at 7v will do just as good of a job and not add much
noise at all. The wound core inductors have tons of surface area and really
are quite efficient compared to the square surface mount inductors that can
be heatsinked.

Bottom line, dont ignore the CPU supply, it's designed for a fan cooled CPU
, when you watercool, you remove a lot of the local airflow and that supply can overheat, especially when you overclock.

Zhentar 02-10-2004 09:24 PM

I noticed a serious drop in stability once I stopped cooling my MOSFETs... mostly because the capacitors next to them exploded. I'd definately recommend some sort of MOSFET cooling.

I wish I could make a MOSFET block but all I've got here is a dremel :(

Edit: Holy crap that's a waterblock Bladerunner.

TerraMex 02-10-2004 10:25 PM

The first one is for the NF7 only, the second one, well, you can just stick it where you want it.
They are, however, for aquacomputer/innovatek systems.
Not particulary good for others.

Exploding capacitors is a known issue with some motherboard manufacturers that purchased second grade capacitors. Not mosfet heating.
RMA it (assuming it's not an old board) , you should be eligible.
Specially if it's a Asus board.


All times are GMT -5. The time now is 11:53 AM.

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...