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OPPAINTER
07-09-2002, 10:37 AM
Its time to test this bad boy out. I've had this block for like 3 months now and havn't used it yet. I've been useing a Swiftech MCW462/226 pelt and my highest sucsessful 3D run on my 2.26 chip was like 196x17. I'll see if Eli's 3 pound Copper Spiral can take down the Swifty:D
OPPAINTER
07-09-2002, 10:38 AM
Here she is all ready for some 226 pelt and chilled water action.
JBELL
07-09-2002, 10:50 AM
impressive.. good luck opp
Chong345
07-09-2002, 10:57 AM
yes good luck! :D
DaGooch
07-09-2002, 11:17 AM
Originally posted by OPPAINTER
Here she is all ready for some 226 pelt and chilled water action.

So that is where all my closed cell foam went to. ;)
OPPAINTER
07-09-2002, 05:13 PM
Originally posted by DaGoochMeister


So that is where all my closed cell foam went to. ;)

Yea and it took 2 hours to wrap this puppie, I'm about tired of condensation. It's tight so far, no leakage. The block works great, temps are lower but still can't do 3D at 197:(

OPP
gone_fishin
07-09-2002, 09:36 PM
Wow, at three pounds it's definately a monster. It looks like it could handle some larger diameter hose barbs for more flow rate if it's not too much trouble with the rest of your loop. More flow and higher velocity would equal even better temps I bet:)
OPPAINTER
07-10-2002, 09:42 AM
Originally posted by gone_fishin
Wow, at three pounds it's definately a monster. It looks like it could handle some larger diameter hose barbs for more flow rate if it's not too much trouble with the rest of your loop. More flow and higher velocity would equal even better temps I bet:)

Next step up would be 5/8 ID, it's allready 1/2 and it's a tight fit. I do agree though, more flow would be great, I've done testing with flow rate cooling a pelt and it really makes a difference. A much bigger difference with a pelt then with just CPU cooling.

OPP
JBELL
07-10-2002, 09:46 AM
what about dippling the surface... it looks smooht.... rough it up to stir up water flow
DisposableHero
07-16-2002, 11:07 PM
Originally posted by OPPAINTER


Next step up would be 5/8 ID, it's allready 1/2 and it's a tight fit. I do agree though, more flow would be great, I've done testing with flow rate cooling a pelt and it really makes a difference. A much bigger difference with a pelt then with just CPU cooling.

OPP

so what GPH pump do you recommend? 500?
dmitriyaz
07-16-2002, 11:13 PM
why not 500?
danner, ViaAqua, Rio;
they all make those and even more powerful;
and they dont cost that much either...
DisposableHero
07-16-2002, 11:27 PM
Originally posted by dmitriyaz
why not 500?
danner, ViaAqua, Rio;
they all make those and even more powerful;
and they dont cost that much either...

i wasnt saying i didnt like 500 i was asking if they mean 500 or even more.. like 900?
dmitriyaz
07-16-2002, 11:30 PM
i see...
i think if you really got 500 gph flowing there, 1000 gph won't give you more than 1 degree improvement over that.
DisposableHero
07-16-2002, 11:54 PM
we'll see when OPP sees this post next time... he says the more flow the better.. but i guess there would me a time when the more just becomes unhelpful
dmitriyaz
07-16-2002, 11:57 PM
exactly!
the question is: where is that limit where more flow doesn't give any better result....
OPP, where are you? :toast:
sysfailur
07-23-2002, 09:39 PM
Originally posted by JBELL
what about dippling the surface... it looks smooht.... rough it up to stir up water flow

When you're getting this extreme do you think such a small change would make a diff?

And OPP, that is one HUGE block!! :)
OPPAINTER
07-25-2002, 09:44 PM
I discovered something with my Custom AMD block. I was using 3/8 ID with it then I decided to go with 1/2ID, guess what, with the water at like -10c the temps were better with the 3/8(less flow) I guess chilled water works better with a slower flow, cools the block more.
Defiantly the opposite when using warm water to cool a pelt.

OPP
sysfailur
07-25-2002, 11:59 PM
3/4 or 3/8? 3/4 would be larger :P
morphling1
07-26-2002, 10:56 AM
Yep, I was thinking the same, but one more thing water would actualy move faster with smaller chanells, at one flow. The equation is velocity = water flow / cross section area. And water velocity, not water flow (well they are obviosly connected) is important for better heat transfer, but in most cases water flow drops when moving through smaller area, (preasure drops) but if your pump is strong enough, going with smaller chanell in water block is always better (keeping overall surface area as high as possible of course)
OPPAINTER
07-26-2002, 04:18 PM
Originally posted by sysfailur
3/4 or 3/8? 3/4 would be larger :P

Sorry, 3/8s :D

OPP
morphling1
07-27-2002, 01:26 AM
So, I was right, you gain on water velocity entering blok (just like, if you would put nozzle there) because of smaller fitting (you improve speed by the same factor you decrease cross section of the fitting). And that water hit block where it's most important above the center, water then lose speed going through the chanells because they haven't changeed. You could put 1/2 fitting on outlet and you wouldn't lose any performanse, maybe even slightly better cos' of lower preasure drop compared with 3/8 fitting.