New waterblock - Made in France

gmat · 02-10-2003, 02:26 PM

Hey ! For once the Frenchies have hatched a nice puppy !
Take a look there.
http://zytrahus.free.fr/articles.php?id=6

10 channels, turbulators, pre-chambers, banked inlet & outlet, all copper.
It's molded (!!) then milled. The 4-feet base is for socket A, the large plexi top is for socket 478.

Nice design ! (and molded... quite uncommon)

Brians256 · 02-10-2003, 02:54 PM

Interesting design! Doesn't the fin pattern look backwards though? I would have thought you would want maximum restriction at the center point over the CPU die. They have restrictions at both ends but wide open fins in the center. So, the velocity drops way down at the center. I guess it depends upon how well the metal conducts heat versus turbulent water.

gmat · 02-10-2003, 02:59 PM

Don't know... They put pre-chambers there so before the finned area there's a good cross-section, supposedly to maintain a good velocity over the fins.
Take a look at their CFD plots, all this looks fine (maybe a slight lack of velocity over the 2 center fins)

bigben2k · 02-10-2003, 03:43 PM

Yeah, that's Roscal's block. He partnered with Zytrahus to make it.

I haven't seen any detailed info, but there might be some in the OC forums.

8-Ball · 02-10-2003, 05:08 PM

I seem to remember from reading the OCforums that it had been disgned to be very low in flow resistance with absolutely no dead spots.

Should be interesting to see how it performs.

8-ball

Joe · 02-10-2003, 05:49 PM

so since its from France does that mean it thinks its better than all my other computer hardware, and smells funny?

hehehe

sorry gmat french people are just such an easy target

Roscal · 02-10-2003, 06:04 PM

Oh this is my block !!!

Gmat you've seen that on JackyPC

airspirit · 02-10-2003, 06:08 PM

They only screwed up one thing: they used an odd number of fins rather than an even one. You want to have an open channel over the block for a slightly larger heat absorbtion potential, rather than having a chunk of copper over the center of the die. Otherwise, it is definitely a looker, and will prolly perform nicely. I know it won't touch Cathar's creation in performance, though. Using a center nozzle on the die area is becoming a standard for the highest performing blocks, and for good reason.

bigben2k · 02-10-2003, 06:45 PM

You may be right Airspirit. This block doesn't seem to try to create turbulent flow, as one would expect, by having narrower channels over the center, which would create faster flow. That would be turbulent flow from sheer pump pressure, which can't be had with a regular pump. In fact, if you look at the design history, you can find a graph that shows a higher speed around the core, not over it.

But the fins are there. Wether they're paired or not, I don't believe it actually makes a difference:shrug:

BillA · 02-10-2003, 07:20 PM

gonna be a leaky devil if they don't change that sealing setup

has one been built yet ?

nicozeg · 02-10-2003, 09:55 PM

The Amd version looks OK, as the top don't receive any loads. But the P4 version is another story, clamping force at that long arms is going to make a big torque on the top. A risky situation with plexy. I'd prefer a metal top for that.

Anyway, the design seems to have a very low pressure drop. Ideal for a multi block setup!

Brad · 02-11-2003, 12:29 AM

I couldn't really imagine any turbulance at all in the centre of the block....in saying that it does look like a very nice design.

just remember if the american's didn't rescue the french that webpage would be written in german

gone_fishin · 02-11-2003, 12:57 AM

Quote:

Originally posted by unregistered
gonna be a leaky devil if they don't change that sealing setup

has one been built yet ?

Maybe they could run champagne in it for higher pressure and a quicker surrender of its fluid

gmat · 02-11-2003, 06:07 AM

Hey, i didnt say that americans were all gun toting, low IQ, cow shit smelling rednecks... oops i just said it

(ducks)

Bill: they've done a prototype. The Socket A version has 4 lugs around the copper base, a la Paul Vodrazka, the best solution against leaky tops IMHO.

For the Socket 478 version maybe an external holder would be a better idea.

Roscal: Yes

Dude, you'd better re-think that S478 solution, or you'll get a bunch of leaky tops...
[frenchie mode] Montre leur aux ricains de quoi un fromage-qui-pue est capable

Chouette bloc, mais t'as vu que tu perds un peu de vÃ©locitÃ© au centre ? Ya pas moyen de resserrer un peu les 3 ailettes centrales, au moins localement (en les bombant un peu) ?[/frenchie mode]

g.l.amour · 02-11-2003, 07:15 AM

hmm, fromage qui pue ....
t'as dÃ©jÃ* mangÃ© la fromage de BXL, alors Ã§Ã* pue comme la fromage des pieds

Joe · 02-11-2003, 07:37 AM

gmat, go loose a war or something

gmat · 02-11-2003, 07:44 AM

Joe: I repeat, i have no mass destruction weapon. Just a watercooled PC !!! Send over the inspectors, not the nukes ... (or some beer, for instance, yeah that would be a good idea. chemical weapons brewing, hmmm...)

LegumaN · 02-11-2003, 07:51 AM

PTDR gmat ^^

BillA · 02-11-2003, 08:33 AM

I smell collaboration - look, another one
they're ganging up on us

re the possible leaking top and a fix:
I do like the g_f champagne soultion,
but I would suggest the California stuff, it sticks around better

bigben2k · 02-11-2003, 08:48 AM

Quote:

Originally posted by g.l.amour
hmm, fromage qui pue ....
t'as dÃ©jÃ* mangÃ© la fromage de BXL, alors Ã§Ã* pue comme la fromage des pieds

Beurk!

Paul Vodrozka went on and on about the need for 6 bolts, to secure the top. Mind you, the mount was a seperate piece. It's his inspiring thoughts that lead me to using more than 4 bolts on my block, but I ended up with 8 because of placement restriction (i.e. no room for 6 bolts!)

Edit: Here are Paul's comments.

BillA · 02-11-2003, 09:05 AM

hey fellahs,
the potential (quite certain to ME) sealing problem is totally unrelated to the number of fastners holding the top

look at it some more

8-Ball · 02-11-2003, 09:21 AM

I assume you are implying about the end of the channel where the o-ring should be seated. Could be a proble, particularly with this bit lifting with the mounting pressure.

8-ball

PS PICTURE COPYRIGHT ZYTRAHUS I presume

8-Ball · 02-11-2003, 09:23 AM

And before anyone says anything, I know there is a text function in paint, I just wasn't planning on writing that much!

8-ball

pHaestus · 02-11-2003, 09:23 AM

Assuming you refer to the fact that the o-ring is at the edge of the plexi on both ends Bill?

BillA · 02-11-2003, 09:35 AM

BINGO
gold sftars each to the above gents

o-rings MUST be constrained to compel them to seal against the desired surfaces
that o-ring is just as likely to move away from the seal, as towards it
(over time such is certain)

02-10-2003, 02:26 PM	#1
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	New waterblock - Made in France Hey ! For once the Frenchies have hatched a nice puppy ! Take a look there. http://zytrahus.free.fr/articles.php?id=6 10 channels, turbulators, pre-chambers, banked inlet & outlet, all copper. It's molded (!!) then milled. The 4-feet base is for socket A, the large plexi top is for socket 478. Nice design ! (and molded... quite uncommon)

02-10-2003, 03:43 PM	#4
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Yeah, that's Roscal's block. He partnered with Zytrahus to make it. I haven't seen any detailed info, but there might be some in the OC forums. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

02-10-2003, 05:49 PM	#6
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	so since its from France does that mean it thinks its better than all my other computer hardware, and smells funny? hehehe sorry gmat french people are just such an easy target __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

02-10-2003, 06:08 PM	#8
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	They only screwed up one thing: they used an odd number of fins rather than an even one. You want to have an open channel over the block for a slightly larger heat absorbtion potential, rather than having a chunk of copper over the center of the die. Otherwise, it is definitely a looker, and will prolly perform nicely. I know it won't touch Cathar's creation in performance, though. Using a center nozzle on the die area is becoming a standard for the highest performing blocks, and for good reason. __________________ #!/bin/sh {who;} {last;} {pause;} {grep;} {touch;} {unzip;} mount /dev/girl -t {wet;} {fsck;} {fsck;} {fsck;} {fsck;} echo yes yes yes {yes;} umount {/dev/girl;zip;} rm -rf {wet.spot;} {sleep;} finger: permission denied

02-10-2003, 06:45 PM	#9
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	You may be right Airspirit. This block doesn't seem to try to create turbulent flow, as one would expect, by having narrower channels over the center, which would create faster flow. That would be turbulent flow from sheer pump pressure, which can't be had with a regular pump. In fact, if you look at the design history, you can find a graph that shows a higher speed around the core, not over it. But the fins are there. Wether they're paired or not, I don't believe it actually makes a difference:shrug: __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

02-10-2003, 02:54 PM	#2
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	Interesting design! Doesn't the fin pattern look backwards though? I would have thought you would want maximum restriction at the center point over the CPU die. They have restrictions at both ends but wide open fins in the center. So, the velocity drops way down at the center. I guess it depends upon how well the metal conducts heat versus turbulent water.

02-10-2003, 02:59 PM	#3
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	Don't know... They put pre-chambers there so before the finned area there's a good cross-section, supposedly to maintain a good velocity over the fins. Take a look at their CFD plots, all this looks fine (maybe a slight lack of velocity over the 2 center fins)

02-10-2003, 05:08 PM	#5
8-Ball Cooling Savant Join Date: Feb 2002 Location: Oxford University, UK Posts: 452	I seem to remember from reading the OCforums that it had been disgned to be very low in flow resistance with absolutely no dead spots. Should be interesting to see how it performs. 8-ball

02-10-2003, 06:04 PM	#7
Roscal Cooling Savant Join Date: Apr 2002 Location: North of France Posts: 198	Oh this is my block !!! Gmat you've seen that on JackyPC

02-10-2003, 07:20 PM	#10
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	gonna be a leaky devil if they don't change that sealing setup has one been built yet ?

02-10-2003, 09:55 PM	#11
nicozeg Cooling Savant Join Date: Sep 2002 Location: Santiago, Chile Posts: 403	The Amd version looks OK, as the top don't receive any loads. But the P4 version is another story, clamping force at that long arms is going to make a big torque on the top. A risky situation with plexy. I'd prefer a metal top for that. Anyway, the design seems to have a very low pressure drop. Ideal for a multi block setup!

02-11-2003, 12:29 AM	#12
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	I couldn't really imagine any turbulance at all in the centre of the block....in saying that it does look like a very nice design. just remember if the american's didn't rescue the french that webpage would be written in german __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

02-11-2003, 06:07 AM	#14
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	Hey, i didnt say that americans were all gun toting, low IQ, cow shit smelling rednecks... oops i just said it (ducks) Bill: they've done a prototype. The Socket A version has 4 lugs around the copper base, a la Paul Vodrazka, the best solution against leaky tops IMHO. For the Socket 478 version maybe an external holder would be a better idea. Roscal: Yes Dude, you'd better re-think that S478 solution, or you'll get a bunch of leaky tops... [frenchie mode] Montre leur aux ricains de quoi un fromage-qui-pue est capable Chouette bloc, mais t'as vu que tu perds un peu de vÃ©locitÃ© au centre ? Ya pas moyen de resserrer un peu les 3 ailettes centrales, au moins localement (en les bombant un peu) ?[/frenchie mode]

02-11-2003, 07:15 AM	#15
g.l.amour Cooling Savant Join Date: Mar 2002 Location: on da case Posts: 933	hmm, fromage qui pue .... t'as dÃ©jÃ* mangÃ© la fromage de BXL, alors Ã§Ã* pue comme la fromage des pieds __________________ yo soy un tiburÃ³n

02-11-2003, 07:37 AM	#16
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	gmat, go loose a war or something __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

02-11-2003, 07:44 AM	#17
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	Joe: I repeat, i have no mass destruction weapon. Just a watercooled PC !!! Send over the inspectors, not the nukes ... (or some beer, for instance, yeah that would be a good idea. chemical weapons brewing, hmmm...)

02-11-2003, 07:51 AM	#18
LegumaN Cooling Neophyte Join Date: Sep 2002 Location: nul part Posts: 2	PTDR gmat ^^

02-11-2003, 08:33 AM	#19
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	I smell collaboration - look, another one they're ganging up on us re the possible leaking top and a fix: I do like the g_f champagne soultion, but I would suggest the California stuff, it sticks around better

02-11-2003, 09:05 AM	#21
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	hey fellahs, the potential (quite certain to ME) sealing problem is totally unrelated to the number of fastners holding the top look at it some more

02-11-2003, 09:23 AM	#23
8-Ball Cooling Savant Join Date: Feb 2002 Location: Oxford University, UK Posts: 452	And before anyone says anything, I know there is a text function in paint, I just wasn't planning on writing that much! 8-ball

02-11-2003, 09:23 AM	#24
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	Assuming you refer to the fact that the o-ring is at the edge of the plexi on both ends Bill?

02-11-2003, 09:35 AM	#25
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	BINGO gold sftars each to the above gents o-rings MUST be constrained to compel them to seal against the desired surfaces that o-ring is just as likely to move away from the seal, as towards it (over time such is certain)

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