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  1. #1
    Member IYIENACE's Avatar
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    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)
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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?
    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

  2. #2
    Member Immortal_Hero's Avatar
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    OMG that sucker got hot!
    ][mmortal ]-[ero
    Heatware

  3. #3
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    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

  4. #4
    Member IYIENACE's Avatar
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    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.
    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

  5. #5
    Member voigts's Avatar
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    I am curious to know how old your pump is and whether or not you are using the stock top or an aftermarket top.

  6. #6
    Member Maviryk's Avatar
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    Check his sig, it's Petra's Top.
    Toshiba Satellite E105
    I'm packing Heat

  7. #7
    Member voigts's Avatar
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    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.

  8. #8
    Member IYIENACE's Avatar
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    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

  9. #9
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    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.

  10. #10
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    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...

  11. #11
    Underwater Senior Member
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    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.

  12. #12
    Member Maviryk's Avatar
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    Are we sure these are real DDCs? And not the fake ones...?
    Toshiba Satellite E105
    I'm packing Heat

  13. #13
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    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."

  14. #14
    Member Maviryk's Avatar
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    ... 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...

  15. #15
    Member Immortal_Hero's Avatar
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    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.
    ][mmortal ]-[ero
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  16. #16
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    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.

  17. #17
    Member voigts's Avatar
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    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.

  18. #18
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    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.

  19. #19

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    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.

    Antec P180B | Seasonic S12-500 | ASUS P5B Deluxe | E6600 C2D | ATI HD5770 | OCZ Reaper PC6400 2x2GB | 2TB total storage | 2x HP 23" LCD | Logitech Z-640 5.1 speakers | Logitech G15 and G5 DELUXE

    My HEAT


  20. #20
    Member SolidxSnake's Avatar
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    There is no threaded version, at least from Laing. The only threaded DC Pumps they have are the D4 and D5.
    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
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