RAM install problems in old iMac G3/500MHz

adirksadirks
Posted:
in Current Mac Hardware edited January 2014
hi All,



got all excited, got 512M PC133 SDRAM for my

old (15" CRT) iMac G3 500MHz for that iMovie

work.

but. it isn't recognised. the site

<a href="http://www.apple-history.com"; target="_blank">http://www.apple-history.com</a>;

is somewhat confusing, it says for the

iMAC Summer 2001:



RAM Type: PC100

Mininum RAM Speed: 133 Mhz

Onboard RAM: 0 MB

RAM Slots: 2

Maximum RAM: 1 GB



so one thinks one needs PC100, but then it says

min speed 133 Mhz... also, it is suggested in

e.g. Get the Most out of your iMac book that

PC133 is acceptable.

moreoever, the memory that is currently in my

iMac read:

256 16x8 SDR 133-4L (by POWMEM)



so, has anybody else experience problems installing PC133 RAM in this iMac?



cheers!

Comments

  • Reply 1 of 5
    paulpaul Posts: 5,278member
    nope i have a 512 PC-133 Stick in my 400 Indigo iMac right now.



    been working great for more then a year now
  • Reply 2 of 5
    dwsdws Posts: 108member
    [quote]Originally posted by Paul:

    <strong>nope i have a 512 PC-133 Stick in my 400 Indigo iMac right now.



    been working great for more then a year now</strong><hr></blockquote>



    Ditto! A good 512Mb PC133 stick will work in your iMac.



    The problem you are having may be due to whoever manufactured your RAM. Cheap RAM is cheap for a reason! Return it. If you can't return it, then you didn't buy from a reputable dealer.



    I've always gotten my RAM from Crucial. It might be a little more expensive, but I've never had one not work perfectly!
  • Reply 3 of 5
    blazernzblazernz Posts: 18member
    I totally agree, cheap RAM is most likely your problem, I have done many an install with pc133 RAM into iMacs like yours. Right now I am running a 600MHZ iMac with two 256 PC133 SDRAM chips.
  • Reply 4 of 5
    costiquecostique Posts: 1,084member
    First of all, all G3 iMacs want PC100. This means a good PC133 will work too. However, I had exactly the same problem with my iMac 450 (Summer 2000) and PC100 modules. There is a lot of crappy RAM on the market and it won't work in Macs not because Macs are non-compliant (as most of RAM-selling guys claim), but because it shouldn't work in most PCs.

    Here's what you should do: say thanks to Apple and change the crappy RAM for that from other manufacturers until it works.
  • Reply 5 of 5
    adirksadirks Posts: 36member
    hi All,



    OK, that sounds reasonably, get good RAM.

    the one that works is POWMWEM was far as i

    can tell.

    the one that does not, is Infineon or something

    of that order. anyway, i am waiting for them

    to get a different brand in, to give that a

    go.

    if it doesn't work, i see if they will order

    Crucial RAM for me.
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