iMac G3 Tray Loading RAM Issues

Discussion in 'PowerPC Macs' started by Arkious, Jan 16, 2012.

  1. Arkious macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #1
    Hi All,

    Some of you might have seen my thread, iMac G3 Revival.

    I am trying to get as much RAM as possible into my iMac, i have 2 256mb modules and a 128mb module, it reads both 256mb modules as 128 and the 128 as 64!

    can anyone help me out? I've tried switching them round etc but nothing
     
  2. California macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #2
    What OS are you running? If you are running OS 9 or OS 8 I believe there are some ram limitations, but not sure i'm remembering correctly.
     
  3. adcx64 macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Philadelphia
    #3
    I've also read the same thing California mentions...
     
  4. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #4
    I'm running 10.4, it seems i may have high density ram but i don't know how to check :S
     
  5. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #5
  6. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #6
    that makes no sense to me what so ever xD

    Heres one of the sticks sticker

    Hynix
    PC133s-333-542
    HYM72V32M636BT6-H AA
    256MB Sync 133MHz CL3

    and the same sticks chip

    Hynix
    HY57V561620BT-H

    can you make heads or tales of that?
     
  7. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #7
    Here you are :D

    In datasheet of above chip is stated:

    4Mbit x 4banks x 16 = 16x16 = high density :)
     
  8. skinniezinho macrumors 6502a

    Joined:
    Jan 1, 2009
    Location:
    Portugal
    #8
  9. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #9
    so what would low density be? 32mb x 8? how did u find that :p

    yeah i know that from you, but i had to find out if the stuff i had was high or low density :) and what the difference was as I've never known the difference
     

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