1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Pump Making Grinding Sound

Discussion in 'Overclocking & Cooling' started by blu3flannel, Nov 30, 2010.

  1. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    My pump, after running for over 12 hours or so, begins to make this grinding/ stripping noise. It happens for a while, goes away, then comes back again. It also makes this high-pitched whining noise that doesn't stop when the grinding does. Does anyone know why this is happening? Thanks. :toast:
    Last edited: Nov 30, 2010
  2. sneekypeet

    sneekypeet Unpaid Babysitter Staff Member

    Joined:
    Apr 12, 2006
    Messages:
    21,523 (7.03/day)
    Thanks Received:
    6,045
    what pump is this, and can we see an image of the loop in your case please?
  3. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    The pump is the OCZ Hydro Pulse 500, and I'll have pics up shortly.
  4. Solaris17

    Solaris17 Creator Solaris Utility DVD

    Joined:
    Aug 16, 2005
    Messages:
    17,153 (5.20/day)
    Thanks Received:
    3,545
    Location:
    Florida
    $10 says air in the chamber.
  5. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    Here's a picture of the loop. Sorry about the image quality.

    [​IMG]


    Do I have to drain the whole loop to fix this?
  6. erocker

    erocker Super Moderator Staff Member

    Joined:
    Jul 19, 2006
    Messages:
    39,596 (13.37/day)
    Thanks Received:
    13,986
    Yeah, it's air. Nice clean loop by the way! :toast:

    Make sure you have a place in your loop for the air to escape, preferable in the resevoir cap. Pick the case up with the pump running and shake it, move it around, etc. Eventually all of the air will escape and the noise will go away.
    johnnyfiive says thanks.
  7. cadaveca

    cadaveca My name is Dave

    Joined:
    Apr 10, 2006
    Messages:
    13,853 (4.53/day)
    Thanks Received:
    6,929
    Location:
    Edmonton, Alberta
    Ok, so I bought this same pump from another user, and it made noises as well. It would only make this noise when the fittings were as you have them, or reversed, with the inlet up top...sideways, with both horizontal, there was no noise.

    I know for a fact, with my pump, the noise was not caused by air. :)rolleyes: I'm lying). No amount of shaking, refilling loop, etc, fixed it.


    So, I figured this was a lubrication problem, so I filled my loop with a water/glycol blend(About 30% glycol), and the noise is now gone.

    :wtf:

    For all I know, the glycol just pushed some air out of the pump.

    :roll:

    So, try adding some glycol to your loop.
  8. Solaris17

    Solaris17 Creator Solaris Utility DVD

    Joined:
    Aug 16, 2005
    Messages:
    17,153 (5.20/day)
    Thanks Received:
    3,545
    Location:
    Florida
    unfortunetly usually. unless you can plug the lines. Even if it takes time id do it. I ignored impeller shaft noise and mine got ripped apart somehow. even if their isnt air in the pump chamber it would be a good idea to look at the physical condition of the inside of the pump.
  9. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    Thanks, it used to use 5' of tubing, but I cut 18" out when I put the res in and my temps dropped 10C! :twitch: And I'll try the shaking thing, hopefully it'll work. I leave this thing on 24/7 and I don't want it sounding like this all the time. :shadedshu
  10. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    That's an interesting way to do it. Where do I get glycol, at the grocery store?
  11. cadaveca

    cadaveca My name is Dave

    Joined:
    Apr 10, 2006
    Messages:
    13,853 (4.53/day)
    Thanks Received:
    6,929
    Location:
    Edmonton, Alberta
    Hardware/Automotive stores. Sometimes used as anti-freeze(which is why i have it, for when I take my PC outside in winter).
  12. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    I did the shaking thing with the res lid off and the grinding stopped. The high-pitched whining hasn't stopped though.
  13. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    Actually, the high-pitched whining just quit too. It's pretty much silent now. If anything else pops up I'll let you know. :toast:

    EDIT: Crap, the high-pitched whining noise is back, intermittently. What do I do to fix it?
    Last edited: Nov 30, 2010
  14. Sasqui

    Sasqui

    Joined:
    Dec 6, 2005
    Messages:
    7,570 (2.38/day)
    Thanks Received:
    1,351
    Location:
    Manchester, NH
    It sounds like a bearing. Have you ever had the pump apart? I've only got experience with the D5 type. There's a ceramic ball that gets lubricated by the coolant (hence the void warrantee if it's ever run dry).
  15. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    Nope, I've never opened the pump and I'll only do so if absolutely necessary. I really don't want to screw anything up and be without a system until I can get another pump.
    Last edited: Nov 30, 2010
  16. robn

    robn New Member

    Joined:
    Mar 9, 2010
    Messages:
    180 (0.11/day)
    Thanks Received:
    67
    Location:
    UK
    Glycol is quite a good idea, it will help lubrication, but be careful: DON'T mix it in if you already have some other special coolant additive in there because that could lead to corrosion.
  17. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    All I have in right now is distilled water. So I just add some glycol in and that'll help it?
  18. cadaveca

    cadaveca My name is Dave

    Joined:
    Apr 10, 2006
    Messages:
    13,853 (4.53/day)
    Thanks Received:
    6,929
    Location:
    Edmonton, Alberta
    Yes, glycol will help. Glycol, although a type of alcohol, is very "wet" and slippery, and hence makes for a good lubricant in water loops.
  19. blu3flannel

    blu3flannel

    Joined:
    May 14, 2010
    Messages:
    898 (0.57/day)
    Thanks Received:
    120
    Location:
    NYU
    So should I just pour out some of my water and add glycol? How much should I add?
  20. cadaveca

    cadaveca My name is Dave

    Joined:
    Apr 10, 2006
    Messages:
    13,853 (4.53/day)
    Thanks Received:
    6,929
    Location:
    Edmonton, Alberta
    start with about 5-8%. And yeah, I'd just add it to the loop while it runs. that way the pump will get a big blast of it when you first put it in.
  21. Sadasius

    Sadasius New Member

    Joined:
    Apr 6, 2009
    Messages:
    263 (0.13/day)
    Thanks Received:
    140
    Location:
    Ottawa, Ontario
    What kind of res are you running? Some do not like glycol and can crack.
  22. brandonwh64

    brandonwh64 Addicted to Bacon and StarCrunches!!!

    Joined:
    Sep 6, 2009
    Messages:
    18,545 (10.21/day)
    Thanks Received:
    6,060
    Location:
    Chatsworth, GA
    Hes running a 5.25in Danger Den bay res.
    Crunching for Team TPU
  23. Sadasius

    Sadasius New Member

    Joined:
    Apr 6, 2009
    Messages:
    263 (0.13/day)
    Thanks Received:
    140
    Location:
    Ottawa, Ontario
    The XSPC res? Can you post a link to the very res he has?
  24. brandonwh64

    brandonwh64 Addicted to Bacon and StarCrunches!!!

    Joined:
    Sep 6, 2009
    Messages:
    18,545 (10.21/day)
    Thanks Received:
    6,060
    Location:
    Chatsworth, GA
    uMM i just said danger den. The danger den website doesn't have that model anymore, its an older one
    Crunching for Team TPU
  25. Sadasius

    Sadasius New Member

    Joined:
    Apr 6, 2009
    Messages:
    263 (0.13/day)
    Thanks Received:
    140
    Location:
    Ottawa, Ontario
    Well according to FrozenCPU "While designed to be corrosion resistant, OCZ reccommends the use of integrated anti-corrosive additives for all water cooling systems to ensure maximum lifespan of your products." So it is recommended to use glycol. However if you notice any micro cracks starting in your res then I would swap the res out or get a better pump like the MCP 655 or something. May want to include a drain as well in your next tube routing project. Makes it easier to empty the loop and clean the system from time to time. :toast:

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page