DDC-2 quit last night

IYIENACE · 02-16-07, 07:41 AM

Here's my Core Temp log.

CPUID: 0x6F6
Processor: Intel Core 2 Duo E6600 (Conroe)
Revision: B2
CPU Speed CPU#0 (Core#0) CPU#0 (Core#1)
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My PC still runs with no apparent damage.... am I just really lucky or how much heat can these C2D take?

Immortal_Hero · 02-16-07, 07:42 AM

OMG that sucker got hot!

Ducatti · 02-16-07, 07:48 AM

125C!! With throttling and thermal protection I'm surprised it didn't shut the computer off...

IYIENACE · 02-16-07, 07:58 AM

Quote:

Originally Posted by Ducatti

125C!! With throttling and thermal protection I'm surprised it didn't shut the computer off...

Oh it did! lol. I was watching a movie and pop off it went. Throttling is disabled in BIOS though.

voigts · 02-16-07, 08:37 AM

I am curious to know how old your pump is and whether or not you are using the stock top or an aftermarket top.

Maviryk · 02-16-07, 08:44 AM

Check his sig, it's Petra's Top.

voigts · 02-16-07, 08:47 AM

Quote:

Originally Posted by Maviryk

Check his sig, it's Petra's Top.

I didn't even pay attention to his sig as that shade of blue is hard to read on my laptop screen that I am using at the moment.

I would still like to know how old it is though.

IYIENACE · 02-16-07, 09:16 AM

voigts I really can't remember when I bought it but I'm guessing about 7-8 months ago. It's still working, I am using it at the moment but I already ordered another because I am so paranoid about it quitting that I have to glance at the res constantly t o make sure the water is flowing.
My loop is fairly new and the water is very clear with 0 air. I am using Petrosin -sp w/ distilled water.

wombat778 · 02-16-07, 09:37 AM

Quote:

Originally Posted by IYIENACE

I am so paranoid about it quitting that I have to glance at the res constantly t o make sure the water is flowing.

You might consider doing what I am doing as a backup. I have MBM w/ coretemp plugin ( http://www.thetechrepository.com/showthread.php?t=74 ) monitoring the temps on each core. Then I have alarms set such that if the temp on any core exceeds 65c, then it executes a little freeware app that shuts down the PC instantly ( http://www.xp-smoker.com/freeware.html ).

This gives me a lot more peace of mind.

Graystar · 02-16-07, 09:48 AM

Hmmm...another dead modded pump.

On the Cooling-Masters website I read about the DDC pumps and failures. Laing says that they never have failures of the DDC pumps used by Apple.

Interesting...

Diggrr · 02-16-07, 10:35 AM

Yeah, I'd be forgetting about using the mod-top right about now too....especially after taking an $80 hit without warranty.
Makes me wonder how close they're machining the insides to match the Liang original.

Maviryk · 02-16-07, 10:46 AM

Are we sure these are real DDCs? And not the fake ones...?

Graystar · 02-16-07, 10:55 AM

Quote:

Originally Posted by Diggrr

Yeah, I'd be forgetting about using the mod-top right about now too....especially after taking an $80 hit without warranty.
Makes me wonder how close they're machining the insides to match the Liang original.

I've already asked that. Petra says that it's just a circle. The shape of the Laing volute is complex enough to be a pain to duplicate...not to mention possible patent problems.

The shape of the volute is important to the generation of head, and all these aftermarket tops have less head than the stock top. But volute shape is also important to maintaining equal lateral forces on the impeller. I remember the old days where idiots would kink a tube and cut flow to see what would happen, and they would crack the ceramic shafts of their pumps. That's because at zero flow the lateral force on the impeller is huge. There have been issues with impellers touching the sides of housings, and I think that might be part of the cause.

The more I hear, the more I think, "stay away from aftermarket tops."

Maviryk · 02-16-07, 11:06 AM

... IIRC the aftermarket tops enables the pump to produce MORE head than the stock one does... why would you want less head in a highly restrictive water loop...

Immortal_Hero · 02-16-07, 11:45 AM

Quote:

Originally Posted by Maviryk

... IIRC the aftermarket tops enables the pump to produce MORE head than the stock one does... why would you want less head in a highly restrictive water loop...

AFAIK most of the 1/2" tops for the DDC decrease pressure (head) but increase flow.

Graystar · 02-16-07, 12:11 PM

Quote:

Originally Posted by Maviryk

... IIRC the aftermarket tops enables the pump to produce MORE head than the stock one does... why would you want less head in a highly restrictive water loop...

As Immortal said, the tops decrease head but increase free flow. On very restrictive loops a stock DDC will have equal and possibly even more flow than the aftermarket top because of the greater head.

Regardless, the answer to you question is so that my pump doesn't die.

voigts · 02-16-07, 05:58 PM

Quote:

Originally Posted by Graystar

I've already asked that. Petra says that it's just a circle. The shape of the Laing volute is complex enough to be a pain to duplicate...not to mention possible patent problems.

The shape of the volute is important to the generation of head, and all these aftermarket tops have less head than the stock top. But volute shape is also important to maintaining equal lateral forces on the impeller. I remember the old days where idiots would kink a tube and cut flow to see what would happen, and they would crack the ceramic shafts of their pumps. That's because at zero flow the lateral force on the impeller is huge. There have been issues with impellers touching the sides of housings, and I think that might be part of the cause.

The more I hear, the more I think, "stay away from aftermarket tops."

If Petras top made the chamber round, then he did not duplicate the chamber area of the stock top. When I made mine, I measured and found that the chamber area has a slight spiral to it. So when I made mine last May, I used a rotary tool after drilling a circle to slightly ream out the chamber area into a slight spiral to match the original top. I also paid great attention to getting my top to have the same clearance between the impeller and the top of the chamber. I found that this distance is vital to keeping the impeller level in the chamber. If there is too large of a gap above the impeller, the impeller can spin at an angle and hit the sides.

It might be that Petra has a design flaw with his top. I made mine last May and so far so good (http://www.ocforums.com/showthread.php?t=456511&page=2). I am currently using the revision 4 that I made.

Graystar · 02-16-07, 08:29 PM

I just have no idea why the threaded version of the DDC isn't sold here. That would take are of the 1/2" barb issue and we can forget about these tops.

damarble · 02-16-07, 08:47 PM

Quote:

Originally Posted by Graystar

I just have no idea why the threaded version of the DDC isn't sold here. That would take are of the 1/2" barb issue and we can forget about these tops.

I didn't even know there was a threaded version. That would solve a lot of problems.

SolidxSnake · 02-16-07, 09:23 PM

There is no threaded version, at least from Laing. The only threaded DC Pumps they have are the D4 and D5.

02-16-07, 07:41 AM	Thread Starter #1
IYIENACE Member Join Date: Apr 2004	DDC-2 quit last night Here's my Core Temp log. CPUID: 0x6F6 Processor: Intel Core 2 Duo E6600 (Conroe) Revision: B2 CPU Speed CPU#0 (Core#0) CPU#0 (Core#1) 3153.97 31 32 3153.97 31 33 3153.97 32 32 3153.97 31 33 3153.97 31 32 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 32 33 3153.97 31 32 3153.97 31 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 31 32 3153.97 31 32 3153.97 31 32 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 31 32 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 32 32 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 31 33 3153.97 32 33 3153.97 32 33 3153.97 31 33 3153.97 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3153.97 114 115 3153.97 114 115 3153.97 114 115 3153.97 114 115 3153.97 113 115 3153.97 113 115 3153.97 113 115 3153.97 113 114 3153.97 113 114 3153.97 113 114 3153.97 113 114 3153.97 112 114 3153.97 112 114 3153.97 112 114 3153.97 112 113 3153.97 112 113 3153.97 112 113 3153.97 112 113 3153.97 112 113 3153.97 100 113 3153.97 100 112 3153.97 100 112 3153.97 100 112 3153.97 100 112 3153.97 100 112 3153.97 100 112 3153.97 100 112 My PC still runs with no apparent damage.... am I just really lucky or how much heat can these C2D take? __________________ I7 4770K ASROCK Z87 Extreme6 EVGA GTX770 16GB G.Skill Ripjaws X DDR3-1866 CAS9 Kingston 120GB SSD OS/games Seagate Barracuda 2TB x2 1TB x2 storage Corsair Professional HX850 Cooler Master Stacker STC-T01 (black) watercooled
	QUOTE Thanks

02-16-07, 07:42 AM	#2
Immortal_Hero Member Join Date: Jan 2005	OMG that sucker got hot! __________________ ][mmortal ]-[ero Heatware
	QUOTE Thanks

02-16-07, 07:48 AM	#3
Ducatti Member Join Date: Apr 2003 Location: Phoenix, AZ	125C!! With throttling and thermal protection I'm surprised it didn't shut the computer off... __________________ Extreme Edition X9750 (Engineering Sample) with HDT-S1283 120mm Rifle CPU Cooler Gigabyte EP45-UD3R 8GB OCZ Fatal1ty Edition (4X2GB) DDR2 800 BFG 8800GTS
	QUOTE Thanks

02-16-07, 08:37 AM	#5
voigts Member Join Date: Feb 2005 Location: Tennessee	I am curious to know how old your pump is and whether or not you are using the stock top or an aftermarket top.
	QUOTE Thanks

02-16-07, 08:44 AM	#6
Maviryk Member Join Date: Sep 2005 Location: Fort Wayne, Indiana, USA	Check his sig, it's Petra's Top. __________________ Toshiba Satellite E105 I'm packing Heat
	QUOTE Thanks

DDC-2 quit last night

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02-16-07, 09:16 AM	Thread Starter #8
IYIENACE Member Join Date: Apr 2004	voigts I really can't remember when I bought it but I'm guessing about 7-8 months ago. It's still working, I am using it at the moment but I already ordered another because I am so paranoid about it quitting that I have to glance at the res constantly t o make sure the water is flowing. My loop is fairly new and the water is very clear with 0 air. I am using Petrosin -sp w/ distilled water. __________________ I7 4770K ASROCK Z87 Extreme6 EVGA GTX770 16GB G.Skill Ripjaws X DDR3-1866 CAS9 Kingston 120GB SSD OS/games Seagate Barracuda 2TB x2 1TB x2 storage Corsair Professional HX850 Cooler Master Stacker STC-T01 (black) watercooled
	QUOTE Thanks

02-16-07, 09:48 AM	#10
Graystar Member Join Date: Aug 2002 Location: Brooklyn, NY	Hmmm...another dead modded pump. On the Cooling-Masters website I read about the DDC pumps and failures. Laing says that they never have failures of the DDC pumps used by Apple. Interesting...
	QUOTE Thanks

02-16-07, 10:35 AM	#11
Diggrr Underwater Senior Member Join Date: Nov 2001 Location: Gun Lake, MI. USA	Yeah, I'd be forgetting about using the mod-top right about now too....especially after taking an $80 hit without warranty. Makes me wonder how close they're machining the insides to match the Liang original.
	QUOTE Thanks

02-16-07, 10:46 AM	#12
Maviryk Member Join Date: Sep 2005 Location: Fort Wayne, Indiana, USA	Are we sure these are real DDCs? And not the fake ones...? __________________ Toshiba Satellite E105 I'm packing Heat
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02-16-07, 11:06 AM	#14
Maviryk Member Join Date: Sep 2005 Location: Fort Wayne, Indiana, USA	... IIRC the aftermarket tops enables the pump to produce MORE head than the stock one does... why would you want less head in a highly restrictive water loop...
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02-16-07, 08:29 PM	#18
Graystar Member Join Date: Aug 2002 Location: Brooklyn, NY	I just have no idea why the threaded version of the DDC isn't sold here. That would take are of the 1/2" barb issue and we can forget about these tops.
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02-16-07, 09:23 PM	#20
SolidxSnake Member Join Date: Dec 2004 Location: Massachusetts, USA	There is no threaded version, at least from Laing. The only threaded DC Pumps they have are the D4 and D5. __________________ Too funny. When I logon to Windows, I press Ctrl+Alt+ELITE i7-2600 4001MHz @ 39x102.6~ASRock P67 Fatal1ty Professional~MSI N580GTX Lightning 1536MB @ 1000//2400 @ 1.149v~8GB Corsair Vengeance DDR3-1600 9-9-9-24~256GB Samsung 830 SSD and 60GB OCZ Vertex~2x Western Digital Caviar Green 1TBs in RAID1 ~BFG ES-800 PSU Custom Watercooling Loop \| Apogee GT, MCW82, MCP35x + Res, Thermochill PA120.2 and 120.3 (both rev1) w/ Gentle Typhoon AP-15s pull, 7/16"x5/8" MasterKleer, 100% Distilled Water with Iodine ---All encased in a Silverstone TJ07B-W Join in on the fun! Heatware OCForums Metal Club member #13224
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