Carloselvis

Q: Special RAM for Performa 6360?

HI everyone! Im having a problem. Im found my good old performa 6360 working as it was in 1997! But it has only 32 MB of Ram. So, there's a little to do with it. I found a few DIMM cards PC-133 of 64 MB each, and when Install them the performa do not power on.   I saw in every mac.com that with two DIMM of 64 we can have the best ram you can have. (136 MB). Can someone help me to find out what happened? Is there any special RAM I have to buy for it?

 

thanks in advance.

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Posted on Sep 26, 2015 4:42 PM

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Q: Special RAM for Performa 6360?

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  • by Jeff,Helpful

    Jeff Jeff Sep 26, 2015 8:39 PM in response to Carloselvis
    Level 6 (11,559 points)
    Sep 26, 2015 8:39 PM in response to Carloselvis

    Your Performa 6360 uses an older type of memory: 5-volt, 168-pin DRAM DIMM, Fast-Paged Mode, 70 ns or faster, with a 2K refresh rate maximum of 64 MBs.  The motherboard has 8 MBs of soldered DRAM.  The 3.3-volt PC-133 DIMMs that you tried are what is classified as SDRAM.  All SDRAM (PC-66, PC-100, and PC-133) is incompatible with the 6360.

  • by Carloselvis,

    Carloselvis Carloselvis Sep 27, 2015 5:51 AM in response to Jeff
    Level 1 (4 points)
    Old Hardware
    Sep 27, 2015 5:51 AM in response to Jeff

    Thanks a lot Jeff! Do You know of this Will do?

     

    http://www.ebay.com/ulk/itm/360477511788

     

    thanks in advance!

  • by Jeff,

    Jeff Jeff Sep 27, 2015 12:25 PM in response to Carloselvis
    Level 6 (11,559 points)
    Sep 27, 2015 12:25 PM in response to Carloselvis

    It may be compatible — I can't determine by the photo.  You need to know the refresh rate of the chips on the DIMM.  For complete compatibility in a 6360, it should be 2K.  A DIMM with chips having a 4K refresh rate (which is common) will function, but a 6360 will only recognize it at ½ of its stated density.  If that's a 64 MB DIMM with a 4K refresh rate, it will be recognized as a 32 MB DIMM in your Performa.  If your goal is to have 64 MBs of recognized memory in each slot, each DIMM must be rated as 2K refresh.

  • by Jeff,Solvedanswer

    Jeff Jeff Sep 27, 2015 12:58 PM in response to Jeff
    Level 6 (11,559 points)
    Sep 27, 2015 12:58 PM in response to Jeff

    I enlarged the photo on that ebay listing to examine the chips contained on the card.  They were manufactured by Hynix Semiconductor:  HY57V651620, with specs that indicate 4 Banks x 1M x 16-bit Synchronous DRAM (SDRAM).  The TC-10 timing (which isn't the same as refresh rate) would be consistent with 3.3-volt SDRAM, PC-66 or low-end PC-100.  This memory can't be used in a Performa 6360.  You need the older and harder-to-find 5-volt DRAM with a 2K refresh rate.

  • by Carloselvis,

    Carloselvis Carloselvis Sep 27, 2015 1:00 PM in response to Jeff
    Level 1 (4 points)
    Old Hardware
    Sep 27, 2015 1:00 PM in response to Jeff

    Any ideas where i can buy these type of RAM?

  • by Allan Jones,

    Allan Jones Allan Jones Sep 27, 2015 6:19 PM in response to Carloselvis
    Level 8 (35,131 points)
    iPad
    Sep 27, 2015 6:19 PM in response to Carloselvis

    I spent some time this morning searching and struck out on Crucial and Other World computing. However, Data Memory systems:

     

    http://www.datamemorysystems.com/apple-powermac-pre-g3-memory-upgrades/

     

    says to e-mail or phone for availability of older systems' memory. I've bought from them before--I trust them.