New Quad Owner Checklist?

Discussion in 'PowerPC Macs' started by dbdjre0143, Oct 1, 2018.

  1. dbdjre0143 macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
    #1
    As reported in another thread I'm now the proud owner of a G5 Quad. :)
    Because of the reading I've done on this forum, I believe that before I even try to power it on, I should apply new thermal compound and inspect the LCS for leaks. Then I planned on using the Apple Hardware Test disk to recalibrate the thermals (can't remember the actual term used around here for that).

    This leaves me with a few questions...
    Am I wrong about any of the above?
    Is there anything else I should do before powering it up for the first time?
    Can anyone direct me to a good guide for redoing the paste and checking out the LCS? My usual go-to, ifixit, doesn't seem to have anything helpful.
    What should I do if I do find the LCS to have leaked?
     
  2. dbdjre0143 thread starter macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
  3. Dronecatcher macrumors 68030

    Dronecatcher

    Joined:
    Jun 17, 2014
    Location:
    Lincolnshire, UK
    #3
    I've owned 2 Quads...each one was attached, powered up and running within minutes of arriving....to hell with precautionary checks ;)
     
  4. dbdjre0143 thread starter macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
    #4
    I like this. Gotta wait for a power cable to arrive first still though. ;) When it arrives, I guess I could just fire it up and see if cooling tests pass without touching anything...
     
  5. Dronecatcher macrumors 68030

    Dronecatcher

    Joined:
    Jun 17, 2014
    Location:
    Lincolnshire, UK
    #5
    Well...if you're waiting on the power cord, no harm in opening up and looking for leaks...
     
  6. dbdjre0143 thread starter macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
    #6
    That's part of my question. How do I tell if it has leaked? Is there a way to tell without pulling the CPUs?
    I did try using a flashlight to look through the front grate after removing the fans as recommended in the link I posted above, and there is no white buildup I can see like in that example.
    I do have a (very) tiny bit of surface rust on the top of the metal divider (I'm assuming that's the top of the PSU) behind the rear fans, but its nowhere near where I would expect it to be if caused by coolant leakage. They're just some spots, no "trails", so I figure that's just some oxidation from ambient humidity, not a sign that standing water has really been there.
     
  7. Dronecatcher macrumors 68030

    Dronecatcher

    Joined:
    Jun 17, 2014
    Location:
    Lincolnshire, UK
    #7
    I'm pretty sure it would be evident and you'd know a leak when you see it (as opposed to normal oxidization)
     
  8. dbdjre0143 thread starter macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
    #8
    I've never had any machine with a LCS before, so didn't really know how much liquid there would be if it were leaking. Also, the area below the CPUs (when standing vertically) is pretty tough to see, so didn't know if there were any telltale signs. What you're saying sounds promising though.
    Reading through these forums has just made me worry a bit was my reason for starting this thread. Seems like the Quad LCS is particularly prone to failure. Been waiting quite awhile to obtain one of these beauties, don't want it to go up in a smoke-check. ;)
    Then again, just like product reviews, the only threads are about people having trouble because generally only those who have trouble ask for help. :)
     
  9. ziggy29 macrumors 6502

    Joined:
    Oct 29, 2014
    Location:
    Oregon North Coast
    #9
    I'd just start it up and monitor the CPU temps. If they are OK, I wouldn't mess with it yet. (If it stays below 60ºC under load, you're OK. If it only rarely spikes over 60, probably still OK. If it is commonly into the 60s and above, or spikes well into the 70s or above, time for an overhaul.)
     
  10. eyoungren macrumors Core

    eyoungren

    Joined:
    Aug 31, 2011
    Location:
    ten-zero-eleven-zero-zero by zero-two
    #10
    I get where you are coming from.

    I got my first Quad a year and 10 months ago. My fears were somewhat alleviated by the fact that it was shipped to me by a trusted and respected source.

    I had fears of coming home and finding this giant puddle of coolant on the carpet with a blown out and scorched Mac. The reality is that the LCS is more prone to slow leakage over time versus some giant blowout.

    Generally, if it is leaking you are looking for a white crystalline powder. If all you see is dust or nothing then you can be pretty sure the system is ok. Nothing like turning it on and getting sprayed with hot coolant is going to happen. Your Mac would have to be beat to hell for that and even then it'd probably just dribble - if it would even turn on from the kind of damage that would take.

    My Quad has been on 24/7 since I got it in January 2017 and I know it was used at a university before that. I haven't had any issues. My CPUs hover around 118 to 120º on idle and I've never seen them spike above 140º. In fact my major concern is actually the heat of the GPU.

    Don't worry about it too much.
     
  11. dbdjre0143 thread starter macrumors 6502

    dbdjre0143

    Joined:
    Nov 11, 2017
    Location:
    West Virginia
    #11
    Thanks for the encouragement. :) I can't see any crystals just looking at it easily. I'm gonna go ahead and try to fire it up Weds with the AHT disc when the power cord comes in. If all goes well at that point, I'll go ahead and order an SSD (it came without a hard drive).
    I can't really say that mine came from a "reliable" source. It was from a GoodWill on eBay. Claimed to be tested and working, but not certain about the validity of that claim since it didn't come with a power cord. For the price I paid though, I had to take the gamble. ;)
     
  12. eyoungren macrumors Core

    eyoungren

    Joined:
    Aug 31, 2011
    Location:
    ten-zero-eleven-zero-zero by zero-two
    #12
    I've had a fairly good track record with Goodwill. Still wouldn't worry too much.

    The Quads do draw a lot of power though so just make sure you've got it plugged into a good socket or powerstrip.
     

Share This Page

11 October 1, 2018