Crucial Pulls Mac Pro RAM!

Discussion in 'Mac Pro' started by eyeluvmyimac, Aug 10, 2006.

  1. eyeluvmyimac macrumors regular

    Joined:
    Oct 27, 2002
    #1
    Well that didn't last long. The FB-DIMM RAM with ECC that Crucial had listed for upgrading the new Mac Pros has been pulled and not replaced. My guess is that our concerns were valid about the lack of a heatsink on it vs the Apple counterpart.

    [​IMG]
     
  2. devmage macrumors member

    devmage

    Joined:
    Aug 9, 2006
    #2
    I posted this in another thread but thought I'd follow up here too. I got this response from Crucial Customer Support them shortly before they pulled the memory. I had asked them if they met Apples thermal disipation requirements with their memory offerings.

    "We are sorry to inform you that we are experiencing an inconsistency with the current heat spreaders on our Mac 1GB FBDIMM modules after extended system use. While we rectify this, we have canceled all shipments of these modules until we can provide a more advanced heat spreader that resolves the problem."
     
  3. mkrishnan Moderator emeritus

    mkrishnan

    Joined:
    Jan 9, 2004
    Location:
    Grand Rapids, MI, USA
    #3
    Interesting -- good spot, and thank you for posting it!

    So is there a general specification that is used outside of the Mac world for the RAM that the MP uses, or is Apple getting something proprietary?
     
  4. spicyapple macrumors 68000

    spicyapple

    Joined:
    Jul 20, 2006
    #4
    Datamem.com is selling 2GB modules for $400, good value with the 1GB modules for $185.
     
  5. devmage macrumors member

    devmage

    Joined:
    Aug 9, 2006
    #5
    Kingston who had modules up under Mac Pro also seem to have pulled them.

    "We're sorry, but no parts are available for this system/device."
     
  6. macenforcer macrumors 65816

    macenforcer

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    Location:
    Colorado
    #7
    Yeah mine is supposed to be here any minute, called crucial and they told me they won't refund shipping. I am really starting to not like them. Anyway they said there is NO replacement part and I need to buy it from Apple. Not good.
     
  7. macenforcer macrumors 65816

    macenforcer

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    #8
    Well I think we figured out how apple is getting away with pricing the Mac Pro so cheap. They are making the money back on the ram. If crucial is not going to make a mac pro ram chip at all you know something is up. I knew the deal on this mac was too good to be true. Now to fork over a whopping $700 for 2gb of ram. Man those are 1995 prices.
     
  8. macenforcer macrumors 65816

    macenforcer

    Joined:
    Jun 9, 2004
    Location:
    Colorado
    #9
    Well got the crucial ram an hour ago and put it in the mac pro. Works no problem. I put some ram heatsinks on it and its good to go. Still testing it though. Will report if there is a problem.
     
  9. eyeluvmyimac thread starter macrumors regular

    Joined:
    Oct 27, 2002
    #10
    Where did you get the ram heat sinks? (and how do you install them?) I didn't even know you could buy those...
     
  10. beancurd macrumors newbie

    Joined:
    Aug 10, 2006
    #11
    They either clip on or are adhesive.

    Did you remove the anodised clip-on heat spreaders and then put on the sinks?

    Where did you find a sink that looks similar? I couldn't find one.
     
  11. Sesshi macrumors G3

    Sesshi

    Joined:
    Jun 3, 2006
    Location:
    One Nation Under Gordon
    #12
    You can get OC spreaders like this but Apple's sinks look pretty specialised. I was wondering about the innards of the Mac Pros, whether that would cause issues with third-party memory and whether it would be a common point of failure even with Apple RAM - I'm suspecting it might be. The equivalent Dells have a fan that blows directly on the memory slots, and sitting with both the Precision 690 and 490 here, neither are as noisy as I'd feared. I'm sure the Mac Pro would be more silent... but more reliable???
     
  12. mercury26 macrumors newbie

    Joined:
    Apr 2, 2004
    #13
    i noticed that they pulled the RAM also. I was about to order some and it was gone. Wish I had my Mac Pro here, so I could do some testing.

    Cheers,

    :: Chuck
     
  13. macenforcer macrumors 65816

    macenforcer

    Joined:
    Jun 9, 2004
    Location:
    Colorado
    #14
    I put 4 each on the ram. This is what I used:

    Newegg VGA ram heatsinks


    They are adhesive and I just stuck them to the crucial heatspreader.


    These are arriving tomorrow:


    Newegg Ram heatsinks Copper


    Will see how these work tonight and slap on the coppers tomorrow for added protection.
     
  14. beancurd macrumors newbie

    Joined:
    Aug 10, 2006
    #15
    Forgive my ignorance, but is the RAM temp monitored anywhere in OSX or do I need to stick a thermometer nearby? ie, how can I tell if it works? iStat etc only shows CPU temp.
     
  15. macenforcer macrumors 65816

    macenforcer

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    #16

    If yo system don't crash it works
     
  16. macenforcer macrumors 65816

    macenforcer

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    #17
    By the way you can still get the ram, just go here. Price drop too!



    Ram
     
  17. wdhpgx macrumors newbie

    Joined:
    Aug 11, 2006
    #18
    Yeah. So I received my dimms from Crucial this morning, and then later received the email:

    We are sorry to inform you that we are experiencing an inconsistency with the current heat spreaders on our Mac 1GB FBDIMM modules after extended system use. While we rectify this, we have canceled all shipments of these modules until we can provide a more advanced heat spreader that resolves the problem.
    We will issue credit back for your purchase price including any shipping charge and in the time being, please contact Apple directly for this particular memory upgrade. For other Mac memory upgrades, you can consult the Crucial Web site or speak to a customer service representative. You will also be receiving an email from UPS that will include a link to the UPS website that will allow you to print labels to send the memory back under our account.​

    Looking at the dimms that came in the machine, they have some pretty serious heatsinks on them, at least 1/2 an inch, on both sides. I'm not surprised the thin little "head spreaders" on the Crucial dimms aren't sufficient..

    So, what are the other options at this point? Do any of the other 3rd party memory provides have the desired heatsinks on their dimms?

    Looking at prices, what I've seen are (for a pair of 1GB sticks):
    Apple $700
    OtherWorldComputing $560
    Datamem $380
    (Crucial was $344)

    That's a fairly wide distribution in price..

    Has anyone bought the dimms from Datamem and can report whether they look like they have enough heatsink on them?
     
  18. macenforcer macrumors 65816

    macenforcer

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    Colorado
    #19
    My crucial dimms work great. Try em out. Beats paying double for em. Worst case cenerio... you get the 1gb dimms and pull the heatspreaders off of the apple ram and put it on the aftermarket. At least you will have 2gb for alot less than the apple cost and when heatspreaders that are up to apples standards become available seperately you can buy them and put them back on.
     
  19. quruli macrumors regular

    Joined:
    Aug 11, 2006
    #20
    http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=43&products_id=635

    Those are some good little heatsinks.

    Finding some old heatsinks and modifying them would also be an option. I am sure the heatspreaders on the crucial and kingston might "work" however give them a touch while they are running and let us know how hot they feel.

    There is clearly a reason for such large heatsinks as these rams have their own processor on them.

    I wouldn't buy ram from them until they have this issue sorted out or assure that it is not a problem.
     
  20. macenforcer macrumors 65816

    macenforcer

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  21. bousozoku Moderator emeritus

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    Gone but not forgotten.
  22. quruli macrumors regular

    Joined:
    Aug 11, 2006
    #24
    Too expensive... for me at least.

    This appears to be what Apple is using. http://www.nanya.com/e-htm/D-E-HTM/e/products/60 ball DDR2 FBDIMM.htm

    Based on the image from PowerMax here http://www.powermax.com/articles_reviews/article.php?id=32, Apple is using NANYA memory modules which are discussed in this PDF from Nanya's website: http://www.nanya.com/attach_file/ddr2_fbdimm_512mb_die_a.pdf

    In the Doc it says that the heat spreaders are designed by Nanya, so they are custom to Nanya modules. However, I don't think one can get there hands on these, at least in the states.

    I am going to email someone at Nanya and see if these heat spreaders can be purchased from them for a reasonable price. Can't hurt to ask.

    From the manufactuers I have found so far that are selling FBDIMMS which include: Apacer, Nanya, Kingston, AData, Smart, Crucial, ATP. Only Nanya is using such large heatsinks.

    UPDATE:
    Some part numbers from Tyan's recommended memory page. http://www.tyan.com/support/html/memory_s5372.html
    Intels recommended manufactuers: http://www.intel.com/cd/channel/reseller/asmo-na/eng/products/server/processors/250634.htm
     
  23. sdshannon macrumors newbie

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    Aug 11, 2006
    Location:
    Portland
    #25
    any luck with Nanya?
     

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